Connecticut Innovations is a venture capital firm and economic development organization based in New Haven, Connecticut, founded in 1989. It provides strategic capital and operational guidance to technology-driven companies across seed, early, and later stages, focusing on sectors such as software as a service, manufacturing, life sciences, clean tech, oncology, cybersecurity, big data, e-commerce, infrastructure, and other technology-based industries, principally in Connecticut. The organization supports its portfolio companies through flexible financing, strategic guidance, and access to partners, aimed at helping innovative Connecticut companies grow and scale.

Advantage Capital Partners is a private equity and venture capital firm founded in 1992 and headquartered in New Orleans, with offices across the United States. It specializes in equity and debt investments, including growth equity, senior debt, mezzanine debt, and subordinated loans, focusing on small businesses and underserved communities to drive local economic development. The firm targets companies at various growth stages in sectors such as manufacturing, technology, business services, energy, agriculture, and renewables, and also participates in rural and minority-led ventures. Its strategy combines debt and equity financing, often supporting ventures with capital needs from roughly half a million up to several million dollars, and it collaborates with state and federal programs to extend financing. Known for impact investing, Advantage Capital aims to create jobs and broad-based economic growth by investing in communities with limited access to traditional risk capital.

Elm Street Ventures is a New Haven, Connecticut-based venture capital firm that focuses on seed and early-stage investments in life sciences and technology. It specializes in companies built on intellectual property from Yale University and other regional research institutions, serving the New York City through Southern New England corridor. The firm seeks to help scientists translate research into companies, leveraging experienced management and access to venture capital to accelerate growth. Partners include serial entrepreneurs and seasoned corporate managers who may serve as interim CEOs or operating chairs. Elm Street Ventures invests across therapeutics, medical devices, diagnostics, lab tools, materials, healthcare services, software, clean technology, and related sectors, typically initial checks ranging from hundreds of thousands to around a million dollars, with follow-on funding possible. While preference is for Yale-origin ventures and New Haven area, investments may collaborate with other institutional investors and focus on teams with strong execution capabilities.

Canaan Partners is a global venture capital firm founded in 1987 and based in Menlo Park, California, with East Coast offices in Westport, Connecticut and an international presence in Israel and India. It focuses on early-stage investments in technology and healthcare companies, targeting sectors such as fintech, enterprise software and cloud, marketplaces, frontier tech, biopharma, digital health and medtech. The firm emphasizes close collaboration with founders, providing strategic guidance and hands-on support to help portfolio companies grow and scale. Over its history it has funded hundreds of startups across information technology and life sciences, building a diversified portfolio and a track record of supporting transformative ideas from inception to growth.

LaunchCapital is a venture capital firm that provides seed and early-stage funding along with hands-on support to ambitious entrepreneurs. Established in 2008 and based in New Haven, Connecticut, it partners with founders to build scalable companies across diverse sectors including commerce, marketplace, consumer, media and entertainment, enterprise software and services, emerging technology, data, finance, healthcare, and medical technology. The firm emphasizes a long-term partnership, capital efficiency, and access to a network of entrepreneurs, advisory services, and accelerators to facilitate sustainable growth and prepare companies for future venture rounds.

Axiom Venture Partners is a venture capital firm based in East Hartford, Connecticut, that provides funding to technology and biotechnology companies across the United States. It engages with startups and growth companies at various stages, with a focus on mid- to late-stage opportunities, and concentrates on sectors such as communications, software, internet infrastructure, information technology, and related high-technology fields.

Fairview Capital Partners is an independent investment management firm focused on private markets. Founded in 1994 and headquartered in West Hartford, Connecticut, with an office in San Francisco, it builds portfolios across venture capital, diverse and emerging managers, and direct co-investments, and provides funds-of-funds investment management. The firm serves institutional clients including foundations, endowments, pension plans, and family offices. It is known for an entrepreneurial spirit, a diverse leadership team, and an inclusive investment approach, with a substantial minority-owned status among U.S. investment firms. The company offers investment management services to a family of venture capital and private equity funds-of-funds.

Cava Capital is a venture capital firm based in Connecticut that pursues early-stage growth opportunities in consumer-focused technology sectors. It concentrates on Mobile, Commerce, Software as a Service, Marketplaces and Digital Marketing, with themes including the rise of the consumer economy, the millennial generation, the shared economy, and the interplay of brand and technology in building sustainable companies. The firm backs both established companies with early traction and development-stage ventures whose products or processes fit its investment themes. It supports portfolio companies by investing in revenue-driving areas such as sales, marketing and business development to accelerate customer engagement, brand equity and revenue growth. Cava Capital leverages industry and financial expertise to actively help build companies for long-term success and favorable risk-adjusted returns.

Regeneron Ventures is the corporate venture capital arm of Regeneron Pharmaceuticals, based in Greenwich, Connecticut. Founded in 2024, it invests in companies operating in biopharmaceutical, healthcare, devices, tools, and health technology sectors.

Oak HC/FT is a Stamford, Connecticut-based venture and growth equity investment firm that concentrates on healthcare information services and financial services technology. The firm aims to drive transformation in these industries by offering strategic counsel, board-level participation, and access to an extensive network of industry leaders. As a full-stack investor, Oak HC/FT supports portfolio companies across their lifecycle to foster long-term growth and address industry challenges such as value-based care, payment system improvements, cost reduction, and improved patient outcomes.

Werth Ventures, based in Woodbridge, Connecticut, is a family office established in 2009 that makes investments across the healthcare sector, from seed to late-stage opportunities. The firm focuses on pharmaceuticals, biotechnology, medical devices, equipment, distribution, facilities, and managed health care, and participates in angel investing to support startup companies in pharmaceutical, veterinary, and medical device fields. Its activity includes funding projects aiming to develop cancer treatments, cardiovascular therapies, pain management, and innovative diagnostics and imaging technologies, as well as autoinjector devices and point-of-care tests. Werth Ventures seeks to back early and growth-stage ventures with potential to advance medical science and patient care.

Hillside Ventures is an early-stage venture capital firm based in Mansfield, Connecticut, founded in 2020. It concentrates on investments in sustainability, insurtech, and edtech startups, including ventures founded by University of Connecticut alumni. The firm involves students by providing real-world venture capital experience as they invest in startups, guided by mentorship from a panel of expert alumni, with a focus on supporting university entrepreneurship and preparing participants for careers in private capital.

OrbiMed is a global healthcare investment firm founded in 1989 and based in New York, with a worldwide presence that includes offices in several regions. It allocates capital across private equity, venture capital, and public equity to support healthcare companies at various stages, from startups to established firms. Its focus spans biopharmaceuticals, medical devices, diagnostics, life sciences tools, and digital health, as well as healthcare services. The firm pursues opportunities across major markets in North America, Europe, and Asia, often leveraging region-specific teams to invest in companies in Israel, China, India, South Korea, and other jurisdictions. OrbiMed emphasizes building world-class companies by providing strategic financing, industry expertise, and global resources to portfolio companies in pursuit of medical breakthroughs and sustainable growth.

Safer Made is a venture capital firm based in North Branford, Connecticut, founded in 2017. It focuses on investing in companies that remove or reduce the use of harmful chemicals in products or manufacturing processes to advance environmental impact and promote healthier people and a cleaner world.

Bulldog Innovation Group is a venture capital firm based in New Haven, Connecticut, founded in 2014 by Yale alumni to support early-stage ventures launched by Yale graduates. The firm focuses on investing in companies founded by Yale alumni entrepreneurs across sectors including healthcare devices and supplies, software, healthtech, edtech, foodtech, mobile, robotics, and drones. It emphasizes active mentoring and leverages a broad network of Yale College and Yale School of Management alumni to help portfolio companies grow. The firm operates privately and independently from Yale University, aligning capital with Yale talent while maintaining independence.

Activant Capital is a Greenwich, Connecticut-based global investment firm that partners with high-growth companies transforming commerce. Founded in 2015 by Steve Sarracino, it maintains offices in Greenwich and Berlin and conducts venture capital and growth equity investments across sectors such as fintech, retail and e-commerce, supply chain, software and hardware, healthcare, AI and automation, and data-heavy B2B and enterprise applications. The firm targets early to growth-stage opportunities, including Series A to growth rounds, and emphasizes research-led investing guided by global megatrends to identify companies with traction and scalable potential. Activant backs entrepreneurs pursuing innovation in commerce and technology-enabled services, with a global outlook and a focus on North America while evaluating opportunities worldwide.

Founded in 2005, Sageview Capital is a Greenwich, Connecticut–based private equity and growth investment firm with an office in Palo Alto, California. It focuses on growth capital for small and mid-sized technology, financial services and business services companies, including fintech and other technology-enabled businesses. Sageview provides flexible capital solutions to support expansion, acquisitions and balance-sheet optimization, and it often takes an active ownership role with board representation. The firm seeks long-term value through hands-on collaboration, industry expertise and a strong network, tailoring structures to individual situations. Its investments span North America and Europe, reflecting a cross-border approach to scaling high-conviction companies. Sageview emphasizes partnering with management teams to accelerate growth and build sustainable businesses rather than purely financial engineering.

Outsiders Fund is an early-stage venture capital firm based in Norwalk, Connecticut, that backs technology-driven startups aiming to disrupt traditional, incumbent industries. It seeks founders with atypical backgrounds and a willingness to challenge the status quo, emphasizing grit, curiosity, and practical problem-solving. The firm typically invests in Seed and Series A rounds, with check sizes ranging roughly from $500,000 to $8 million, and focuses on companies operating in information technology and related sectors such as mail security, automation, healthcare, and supply chain management, targeting opportunities in the United States and Canada. The team is described as a group of owners, operators, builders, and outsiders, committed to supporting rapid growth and navigating disruptive innovation in neglected sectors.

VC23 Investors is a venture capital investment firm headquartered in Avon, Connecticut, founded in 2007. It specializes in early-stage investments across technology, biotechnology, life sciences, and healthcare, backing management teams with breakthrough technologies. The firm targets companies with strong growth potential, including those capable of generating at least $100 million in annual revenues. VC23 often co-invests with other venture capital and early-stage investors and may lead rounds or participate as a smaller participant. By leveraging its sector focus and network in biotechnology and related technologies, VC23 aims to add value through strategic guidance and collaborative capital deployment.

SoundBoard Venture Fund is a Montclair, New Jersey-based venture capital firm founded in 2011 that invests in seed and early-stage opportunities, including pre-Series A rounds, across a broad range of sectors. It pursues an industry-agnostic approach with emphasis on scalable, tech-enabled companies and segments such as agriculture, manufacturing, infrastructure, transportation, real estate, construction, education, health care services, and specialty food and beverage distribution. The firm often concentrates on opportunities within roughly 150 miles of New York City and seeks to lead investments. Its collaborative approach involves limited partners in evaluation and decision-making, drawing on diverse perspectives, and it provides portfolio companies with leadership, growth management, and lifecycle support.

CHL Medical Partners is a United States-based venture capital firm that specializes in seed and early-stage investments in life sciences, healthcare, biotechnology, diagnostics, and medical devices. Founded in 1997 and based in Westport, Connecticut, the firm targets early-stage companies across the United States and aims to support companies in biotechnology, molecular diagnostics, and healthcare services, including tools and technologies for life sciences. It prefers to be a lead investor, provides follow-on capital, and seeks to help portfolio companies with governance and funding, including potential interim management roles, with exits typically through strategic, financial, or public market buyers. The firm focuses on companies that address access to care, consumer healthcare, elder care, and efficient administration of healthcare, and often supports companies developing new technology, drugs, or medical devices. The firm emphasizes building a long-term syndicate of co-investors and board representation in its portfolio companies.

Realist Ventures is a venture capital firm based in Stamford, Connecticut, founded in 2018. It makes minority investments across pre-seed, seed, early-stage, and later-stage companies, with a focus on biotechnology, software, technology, and software-as-a-service sectors and on marketplaces and internet-enabled platforms. The firm seeks to back bold founders and ideas at development and early stages, supporting innovative technology companies throughout their growth.

Digital Currency Group is a corporate venture capital and investment firm based in Stamford, Connecticut, that builds and supports bitcoin and blockchain companies by providing insights, networks, and access to capital. The company operates core platform assets including CoinDesk, Genesis Trading, and Grayscale Investments, and pursues investments in fintech, bitcoin, web3 infrastructure, platforms, decentralized finance, data, metaverse, and other blockchain-related sectors.

Angel Investor Forum is a Connecticut-based angel investor network founded in 2004 that connects private individuals who invest their own money with early-stage startups. Based in Lyme, the group co-invests and syndicates deals with other angel networks and partners to support companies with growth potential. It runs a structured process of monthly company pitches followed by due diligence and aims to provide smart capital to early‑stage ventures. The forum targets sectors including SaaS, medical devices and diagnostics, biotech, energy, and nanotechnology across the Northeast, with a focus on Connecticut, while actively seeking to increase investments in women‑ and minority‑owned businesses.

Signal Lake is a private equity and venture capital firm that invests across incubation, seed and later-stage ventures in technology companies. The firm focuses on software, communications and networking, broadband telecom, network infrastructure, information technology, cloud computing, embedded systems, semiconductors and green energy. It pursues global investment opportunities from a Northeast United States base, with offices in Westport, Connecticut and Boston, Massachusetts.

IA Capital Group is a New York-based independent venture capital firm focusing on insurtech and fintech. It invests across North America from seed to Series B, with emphasis on payments, financial infrastructure, property and casualty insurtech, life and health insurtech, lending, capital markets, and wealth and retirement technology. The firm also incubates companies and manages strategic venture programs for insurers. Founded in 1992 (formerly Inter-Atlantic Group), IA Capital has established a track record of supporting early and growth-stage ventures in insurance and broader financial services. It maintains offices in New York, Westport, Connecticut, and Miami, Florida, and collaborates with multiple insurers to shape innovative solutions in the sector.

WorldQuant Ventures is an early-stage investment firm established in 2014 by Igor Tulchinsky. It operates as an independent venture arm focused on technology, with emphasis on data, finance, fintech and big data. The firm backs disruptive startups in AI, machine learning, and related frontier technologies, pursuing long-term partnerships and value creation. Based in Greenwich, Connecticut, it seeks to lead rounds and provide strategic fundraising and governance support to portfolio companies.

New Science Ventures is a venture capital investment firm founded in 2004 and based in Greenwich, Connecticut. It concentrates on life sciences and information technology, investing in both early- and late-stage companies that pursue novel scientific approaches to address significant unmet needs and achieve substantial performance improvements. The firm emphasizes science-based innovations in pharmaceuticals, biologics, medical devices, diagnostics, data analytics, artificial intelligence, and related areas, and offers expertise in strategy and corporate planning, operations and cost management, and leadership development to support portfolio companies. It operates as a registered investment adviser and targets opportunities in the United States, Western Europe, and Asia-Pacific.

Turnstone Capital Management is an investment firm that pursues venture capital and private equity opportunities in technology companies across early-stage, expansion, and acquisition contexts. It targets sectors including media and communications, information technology, industrial technology, and financial services, with emphasis on AI infrastructure and applications, energy transition tech, and energy-efficient infrastructure. The firm tends to take minority stakes in growth transactions and may pursue control in management buyouts, often seeking board representation. It primarily invests in the United States and is open to opportunities in Europe, Latin America, and India, with typical deal sizes ranging from five to fifty million dollars and an average of about ten million per transaction. Founded in 2004, it is based in Connecticut.

Cigna Ventures is the corporate venture arm of The Cigna Group, based in Bloomfield, Connecticut. It invests in and partners with startups in healthcare, digital health, data and technology to accelerate growth and bring innovative solutions to market. The organization focuses on insights and analytics, digital health and retail, and care delivery and management, aiming to improve the health, well-being and sense of security of the people served by The Cigna Group by delivering differentiated value through collaboration with portfolio companies.

Point72 is a global asset management firm led by Steven A. Cohen, headquartered in Stamford, Connecticut, with offices in New York, London, Poland, Hong Kong, Tokyo, and Singapore. The firm manages investments across multiple asset classes, including discretionary long/short equities, quant strategies, macro, fixed income, and private investments, and it launches and manages hedge funds for clients. Point72 also operates Point72 Ventures, an independent venture capital arm focused on fintech, artificial intelligence and enterprise technologies, with locations in New York, Palo Alto, San Francisco, and Stamford. Since its founding, Point72 has built a diversified platform combining traditional asset management with venture investing, leveraging fundamental analysis and sector expertise to support growth-stage and later-stage companies.

Cloquet Capital Partners is an early and growth stage venture capital firm headquartered in New Canaan, Connecticut. Founded around 2003 by Burt McGillivray through a spinout from Bank One Equity Partners, the firm targets technology companies with well-defined market opportunities that have begun to generate revenue. Its focus is primarily on the Greater New York City metropolitan area, where it provides capital and strategic guidance to help portfolio companies scale.

Galen Partners is a private equity and venture capital firm based in Stamford, Connecticut, founded in 1990. It concentrates on investments in the healthcare sector, including medical devices, diagnostics, healthcare information technology, life sciences, oncology, and related services. The firm targets mid- to late-stage opportunities and growth equity, including buyouts and recapitalizations, and often pursues co-investment. It supports portfolio companies with industry expertise and a broad network to accelerate growth, and typically invests in the range of $10 million to $30 million per deal. Over its history, Galen Partners has built a portfolio valued in the billions and has a track record of guiding management teams through growth, public offerings, financings, mergers, and acquisitions.

Falmouth Ventures is a venture capital firm founded in 2018 and based in Greenwich, Connecticut. It focuses on investing in companies within the business economy sector, prioritizing innovations in human resources technology and marketing technology.

Oak Investment Partners is a multi-stage venture capital and private equity firm founded in 1978 and based in Greenwich, Connecticut, with additional offices in Norwalk, Connecticut, Palo Alto, California, and Minneapolis, Minnesota. The firm focuses on high-growth opportunities in information technology, the internet and consumer sectors, financial services technology, healthcare information and services, and clean energy. It engages in buyouts, spinouts, growth equity, mid-to-late stage financings and PIPE investments in private and public companies, and also pursues startup investments, emerging growth, recapitalizations and industry consolidation. Typical investment sizes range from roughly 10 million to 150 million, and since inception it has deployed about 9 billion across more than 525 companies worldwide.

Thynk Ventures is a venture capital firm based in Stamford, Connecticut, founded in 2009. The firm concentrates on early-stage investments in technology-driven startups, focusing on machine learning and artificial intelligence, mobile, digital platforms, and software-as-a-service companies. It seeks to back ventures in the greater New York City area and provides strategic guidance and hands-on support, including mentoring, product development and launch planning, pricing, partnerships, fundraising, and exits to help startups navigate growth and scale their products and operations.

Braidwell is an investment firm focused on accelerating advancements in human health by providing capital and strategic partnerships to companies across all stages of development and capital structures in public and private markets. Founded in 2021 by Alex Karnal and Brian Kreiter, the firm draws on a seasoned team with expertise in investment research, medical science, data science, and related disciplines to support companies at the intersection of medicine, science, and technology aiming to transform health outcomes.

Altai Ventures is a venture capital firm based in Weston, Connecticut, founded in 2021. It concentrates on fintech and financial services ventures, investing across early and growth stages. The firm provides comprehensive support to portfolio companies, from backing to incubation, with a view to empowering founders and fostering a thriving ecosystem for innovation. Altai Ventures partners with exceptional founders to reinvent finance through practical guidance and resources, delivering value to its portfolio companies.

Waypoint Capital Partners is a venture capital firm founded in 2001 and based in Stamford, Connecticut. As a private equity arm of Privet Capital, it focuses on providing entrepreneurs and businesses with both financial resources and strategic expertise. The firm is particularly interested in investments within the healthcare, SaaS, and manufacturing sectors. Waypoint Capital Partners emphasizes a flexible approach to structuring investments, tailoring solutions to the unique needs of its clients. Throughout the investment lifecycle, the firm remains committed to maintaining transparency and efficiency, ensuring that challenges are addressed promptly. Unlike traditional funds, Waypoint's decisions regarding exits prioritize the best interests of its management teams and portfolio companies rather than the imperative to return capital to limited partners.

Visary Capital is a venture capital firm based in Easton, Connecticut, focused on supporting early-stage technology companies. It targets fintech, data, artificial intelligence, cryptocurrency and digital industries, and pursues selective investments aligned with macro themes and digital asset strategies. The firm combines data-driven analysis with founder collaboration to help portfolio companies achieve growth and navigate evolving markets.

Positive Sum is a venture capital firm founded in 2020 and based in Greenwich, Connecticut. The firm concentrates on early-stage investments and helps teams build extraordinary businesses.

QW Ventures is a growth-stage investment firm with offices in Beverly Hills, New York, Miami, and Connecticut. It backs growth-oriented technology companies in fintech, cybersecurity, cloud computing, blockchain, software as a service, marketplaces, mobile, and technology-enabled businesses.

The Ropart Asset Management Funds is a private equity firm based in Greenwich, Connecticut, founded in 2001. It concentrates on small- to mid-size companies across multiple sectors, including business services, financial services, healthcare services, consumer products and services, information technology, software, and increasingly technology-driven areas such as blockchain and cryptocurrency. The firm pursues growth, expansion, and controlling investments in middle-market and mature companies, often seeking majority stakes and board representation. It engages in a range of strategies, including growth equity, mezzanine lending, buyouts, and opportunistic or distressed opportunities, as well as secondary direct investments. Typical equity investments range from roughly 3 to 15 million with deal values commonly between 10 and 100 million, though larger transactions are possible. The partnership tends to seek a lead or co-lead role with value-added co-investors and a multi-year horizon, generally around five years, for value creation.

Biomark Capital is a Greenwich, Connecticut-based private equity and venture capital firm that invests in life science and healthcare companies across North America and select international markets. The firm supports companies operating in therapeutics, medical devices, diagnostics, molecular diagnostics, and digital health, as well as information technology applications in healthcare, from early to late stages. Biomark seeks to accelerate growth and build successful ventures through strategic collaboration and capital. It has pursued international activity in regions including Russia, Taiwan, India, and China, reflecting a global outlook. Biomark Capital was formerly known as GBP Capital and is registered as an investment adviser (RIA).

1843 Capital is a venture capital firm founded in 2018 that backs early-stage technology companies, including those in enterprise software and cybersecurity, with a particular emphasis on AgeTech and longevity. The firm targets companies addressing the needs of an aging global population and the goal of a 100+ year healthspan, often supporting teams that include women. It provides capital, strategic guidance, and industry connections to help portfolio companies grow. The firm is based in Washington, DC, with additional offices in New York and Greenwich, Connecticut.

Centripetal Capital Partners is a venture capital investment firm founded in 2004 and based in Stamford, Connecticut. The firm focuses on technology, health and wellness, impact, and market reimagination sectors.

The Grosvenor Funds was a Washington, D.C.-based venture capital firm founded in 1994 that no longer invests. Historically it focused on seed, early, mid, and expansion-stage opportunities across the United States, with an East Coast emphasis. Its portfolio spanned technology and life sciences sectors, including wireless, broadband, IT services, online services, networking, security technology, healthcare services, pharmaceuticals, biotechnology, and defense-related IT. Typical initial commitments ranged around 1 to 2 million, with add-on financing in later rounds; the firm often acted as lead investor or formed syndicates and sought a board seat. It operated independently, with offices in Washington, D.C., and Greenwich, Connecticut.

Acadian Ventures is a venture capital firm based in Madison, Connecticut that invests in early-stage software companies, with a focus on the future of work and AI-driven solutions across industries. It helps founders build and scale innovative offerings that redefine how work is performed, coordinated, and supported, seeking substantial step changes rather than incremental improvements. The firm invests globally, with typical checks up to about $2 million, and emphasizes context, transparency, and skills-based operations in its portfolio approach.

Synchrony Financial is a U.S. consumer financial services company that partners with retailers, manufacturers, and healthcare providers to offer a broad suite of financing and banking products. It delivers private-label and co-branded credit cards, dual cards, and general purpose credit products, along with promotional financing for consumer purchases and installment loans. The company also provides deposit products, including certificates of deposit, individual retirement accounts, money market accounts, and savings accounts, and serves retail and commercial customers through digital and other channels. Its programs span digital, retail, home, auto, travel, health, and pet services, and it collaborates with national and regional merchants, manufacturers, and industry groups to market its products. Synchrony operates through segments such as retail card, payment solutions, and CareCredit, and originates and services credit through partnerships rather than through its own network of physical stores. Founded in 2003, Synchrony is headquartered in Stamford, Connecticut.

MissionPoint Capital Partners is a Westport, Connecticut-based asset management firm focusing on venture investments across the United States in clean energy, environmental finance, and related sustainability sectors, including climate change mitigation, waste recycling, local food systems, and urban water infrastructure. The firm emphasizes disciplined research, origination, and execution to create a diversified portfolio of high-quality investments that support the transition to a low-carbon economy, driven by global energy demand, policy development, and the expansion of environmental markets.