Mainspring
Series F in 2025
Mainspring Energy, Inc. is a technology company based in Menlo Park, California, that specializes in developing linear generator technology for low carbon, dispatchable energy solutions. Founded in 2010 by three Stanford engineers, the company focuses on creating advanced prototypes that convert fuel into electricity through a unique, low-temperature reaction of air and fuel. This innovative approach allows Mainspring to offer generators that provide affordable, reliable electricity while significantly reducing carbon emissions compared to traditional electric grids. The company's mission is to address climate change and enhance energy accessibility, contributing to the development of net-zero carbon energy systems for the future.
Zetwerk is an end-to-end manufacturing supply chain solutions provider. It operates an online marketplace connecting large manufacturers with vendors and suppliers for customized products used in industrial machines and equipment. The company offers items such as crane parts, doors, machine chassis, ladders, and services in fabrication, machining, casting, and forging. Zetwerk facilitates collaboration tools for buyers and suppliers, execution tools for order fulfillment, and plans to host a third-party apps marketplace. Headquartered in Bengaluru, Karnataka, India, the company was founded in 2018.
AliveCor, Inc. specializes in developing digital medical-grade electrocardiograms, enabling users to monitor their heart health through mobile technology. The company's flagship product, KardiaMobile, is a personal mobile EKG device that provides instant detection of common heart arrhythmias, along with features for blood pressure and weight tracking, as well as storage for recorded EKGs. Additionally, AliveCor offers KardiaMobile 6L, a six-lead EKG device that allows patients to share detailed EKG readings with healthcare providers. The company also operates KardiaCare, a digital health subscription service that empowers users to manage their heart health conveniently at home. Founded in 2010 and incorporated in 2011, AliveCor is headquartered in Mountain View, California, and is recognized for its innovative contributions to cardiac care through the integration of machine learning techniques.
Lattice is a People Success Platform that integrates various tools, workflows, and data to assist business leaders in fostering engaged, high-performing employees and cultivating positive company cultures. The platform encompasses continuous performance management, goal-setting, employee engagement, compensation management, career development, and people analytics, providing HR, People, and Operations teams with essential insights to enhance workplace environments and achieve significant business results. Lattice has received recognition as one of the fastest-growing private companies and is celebrated as a top workplace, with a high employee satisfaction rate. Serving nearly 5,000 customers globally, including notable organizations like Slack, Asana, Solera Health, and Guild Education, Lattice aims to streamline performance management processes through real-time employee feedback and efficient performance review cycles, targeting medium-sized companies for goal management and achievement.
ThoughtSpot
Series F in 2021
ThoughtSpot provides an AI-native intelligence platform that empowers enterprises to explore any data, ask questions, and uncover actionable insights. It offers intuitive natural language search, enabling users to generate answers from business data at every point of decision-making. ThoughtSpot serves various industries, with clients including NVIDIA, Hilton Worldwide, Capital One, and Huel.
SingleStore
Series F in 2021
SingleStore is a data technology company that provides a distributed SQL database platform designed for real-time transactions and analytics. Its offerings include SingleStore DB, a distributed SQL database that can run on bare metal, in the cloud, or in hybrid deployments for operational analytics, and SingleStore Managed Service, a cloud database-as-a-service that provides analytics across a cloud of choice. The platform combines transactional and analytical processing in a single engine, supports real-time querying, multi-model data, and scalable ingestion, and aims to modernize data platforms, secure workloads, and support customer analytics across industries such as financial services, media and communications, energy and utilities, government, retail, and technology. Headquartered in San Francisco with additional offices, the company serves global enterprises by enabling real-time insights from data.
Faire is a two-sided marketplace connecting local retail stores with unique wholesale merchandise from brands and makers. It offers retailers tools for data insights, financial terms, and logistics support to compete with larger competitors. Faire's platform simplifies wholesale buying and selling processes, offering net 60 payment terms and free returns.
Vectra AI
Series F in 2021
Vectra AI, Inc. specializes in developing artificial intelligence-based solutions designed to detect and respond to cyberattacks across cloud, data center, and enterprise infrastructures. Founded in 2010 and headquartered in San Jose, California, the company focuses on safeguarding cloud and data center workloads as well as user and IoT devices. Its Cognito platform enhances threat detection and investigation by leveraging AI to gather, store, and enrich network metadata, allowing for real-time identification and analysis of both known and unknown threats. Vectra AI offers three key applications within the Cognito platform: Cognito Stream, which transmits security-enriched metadata to data lakes and SIEMs; Cognito Recall, a cloud-based tool for storing and investigating threats; and Cognito Detect, which utilizes AI to uncover and prioritize hidden attackers swiftly. The company also has research and development centers located in Dublin, Austin, and Cambridge.
Iora Health
Series F in 2020
Iora Health, Inc. is a healthcare organization based in Boston, Massachusetts, that specializes in providing primary care services across the United States. Founded in 2010, Iora Health focuses on redesigning primary care to eliminate barriers and enhance patient experience. Each patient is assigned a personal physician and a health coach, ensuring continuous support and communication through various channels, including email, text, and video, in addition to in-person visits. The company employs a team-based approach to care, which includes a doctor or nurse practitioner, a nurse, a behavioral health specialist, and a health coach, all supported by a proprietary technology platform that integrates population health management into the primary care workflow. Iora Health also offers educational programs, such as group visits, to help patients stay engaged with their health and achieve their wellness goals.
Okta provides identity management platforms for enterprises, government agencies, and organizations worldwide through the Okta Identity Cloud. The platform offers products to manage and secure identities, including a cloud-based directory to store user, application, and device profiles; single sign-on to access cloud and on-premise applications from multiple devices; adaptive multi-factor authentication for enhanced security; lifecycle management to handle user identities throughout their lifecycle; API access management to secure APIs; and tools to secure cloud infrastructure and extend access to on-premise apps. The company provides professional services, customer support, and training, and markets its products directly as well as through channel partners. Founded in 2009 and headquartered in San Francisco, California, Okta focuses on connecting and protecting workforces, partners, suppliers, and customers by enabling secure access across a broad ecosystem of apps with deep integrations to thousands of applications.
Lookout, Inc. is a cybersecurity company specializing in cloud-based technology solutions for mobile security. Founded in 2005 and headquartered in San Francisco, California, with additional offices in major cities worldwide, Lookout offers a range of products including mobile security apps for both Android and iOS devices. Its solutions encompass Mobile Threat Protection, a Mobile Intelligence Center for real-time threat investigations, and an App Vetting API designed to secure enterprise and commercial app stores. By providing organizations with tools to enable bring-your-own-device (BYOD) policies, ensure compliance, and combat advanced mobile threats, Lookout empowers enterprises and individuals to safeguard their sensitive data across devices, applications, networks, and clouds. The company's platform is trusted by various enterprises, government agencies, and millions of consumers, allowing them to manage their data securely and efficiently.