Index Ventures

Index Ventures is a venture capital firm headquartered in London with offices in San Francisco and Geneva, focused on backing technology-driven startups across Europe, North America, and beyond. The firm specializes in high technology and life sciences, and invests across early and growth stages in sectors such as artificial intelligence, software, data, fintech, healthcare, media, mobility, open source, and security. Since its founding in 1996, Index Ventures has partnered with ambitious entrepreneurs to turn bold ideas into global businesses, providing strategic guidance and capital to help companies scale. Notable portfolio companies include Adyen, Deliveroo, Dropbox, Farfetch, King, Slack, and Supercell, reflecting the firm’s track record of supporting market-changing technology companies.

Nina Achadjian

Partner

Chris Ahn

Principal

Julia Andre

Partner and Investor

Damir Becirovic

Partner

Bernard Dalle

Partner

Sofia Dolfe

Partner and Investor

Zabie Elmgren

Partner

Mark Fiorentino

Principal

Paula Garcia Domingo

Partner and Investor

Giacomo Genzini

Partner and Investor

Mark Goldberg

Partner

Carlos Gonzalez-Cadenas

Partner and Investor

Jan Hammer

General Partner

Paris Heymann

Partner and Investor

Jacob Jofe

Associate

Jack Kleeman

Partner

Adrianna Ma

Investor

Martin Mignot

Partner

Bryan Offut

Principal / Partner

Bryan Offutt

Principal

Shimin Ooi

Partner

Cyriac Parisot

VC Investor and Head of Data

Danny Rimer

Partner

Neil Rimer

General Partner

Jahanvi Sardana

Partner and Investor

Hannah Seal

Partner and Investor

Shardul Shah

Partner

Kimihiko Shindo

General Partner

Georgia Stevenson

Partner and Investor

Ishani Thakur

Partner and investor

Kelly Toole

Principal

Dominique Vidal

Venture Partner

Katharina Wilhelm

Partner and Investor

Catherine Wu

Partner and Investor

Cat Wu

Partner

Giuseppe Zocco

Co-Founder

Past deals in Messaging

incident.io

Series B in 2025
Incident.io offers an incident management tool integrated with Slack for announcing, managing, and resolving incidents in real-time. Its platform enhances workplace communication during outages by providing default solutions, virtual war rooms, and automated workflows.

incident.io

Series A in 2022
Incident.io offers an incident management tool integrated with Slack for announcing, managing, and resolving incidents in real-time. Its platform enhances workplace communication during outages by providing default solutions, virtual war rooms, and automated workflows.

incident.io

Seed Round in 2021
Incident.io offers an incident management tool integrated with Slack for announcing, managing, and resolving incidents in real-time. Its platform enhances workplace communication during outages by providing default solutions, virtual war rooms, and automated workflows.

Discord

Series H in 2020
Discord operates as a communication platform offering voice, video, and text services for users to interact with friends and communities. Originally created for gamers, it has since expanded its user base to include various groups such as art communities, study groups, and local clubs.

Discord

Series G in 2020
Discord operates as a communication platform offering voice, video, and text services for users to interact with friends and communities. Originally created for gamers, it has since expanded its user base to include various groups such as art communities, study groups, and local clubs.

Quill

Series A in 2019
Quill is a computer software company that specializes in developing a productivity-focused messaging platform. Founded in 2017 and headquartered in San Francisco, California, the company comprises a team of engineers and designers with prior experience at notable tech firms. Quill’s platform emphasizes streamlined communication by promoting fewer, more focused conversations through a threaded messaging system, which helps teams engage without distractions. The software aims to enhance productivity rather than engagement, making it a suitable tool for organizations seeking efficient communication solutions.

RetentionForce

Pre Seed Round in 2019
RetentionForce is a comprehensive marketing software solution tailored for small and medium-sized businesses aiming to enhance customer loyalty and retention. The platform utilizes advanced conversational technologies, including chatbots on Facebook Messenger, to facilitate engagement with clients through various tools such as loyalty and referral programs, customer reviews and feedback collection, and SMS marketing. Designed to simplify marketing efforts, RetentionForce minimizes manual tasks with its automated features and pre-designed content templates, making it accessible for businesses reliant on repeat customers. The software integrates ten distinct tools that work cohesively to support both online and offline operations, allowing users to customize their marketing approach by selecting specific features or adopting the entire suite for sustained growth. With scalable plans starting from a free option, RetentionForce provides solutions suitable for every stage of a business’s development.

Sphere (Acquired by Twitter)

Series B in 2019
Sphere has been acquired by Twitter! Read more on blog.sphere.me Sphere is a chat app that turns groups into close, vibrant, purposeful and productive communities, instantly. Sphere has raised $30M of venture capital from top investors such as Index Ventures, Mike Moritz and Brian Chesky.

Netomi

Series A in 2019
Netomi is a company that specializes in developing a conversational artificial intelligence platform aimed at enhancing customer experience in commerce. Founded in 2015 and headquartered in San Mateo, California, with additional offices in New York and Gurugram, Netomi provides a no-code solution that integrates seamlessly with various platforms, including Zendesk, Salesforce, and Shopify. Its technology enables brands and businesses to automate customer interactions across multiple channels, such as mobile messaging, chat, email, and voice, allowing them to make product recommendations, answer queries about availability, and assist with purchases. Netomi's platform is designed to improve customer satisfaction and operational efficiency while reducing costs and reliance on developers. The company has established itself as a leader in customer experience AI, leveraging advanced AI technologies to help enterprises meet evolving customer expectations and deliver exceptional service.

Discord

Series F in 2018
Discord operates as a communication platform offering voice, video, and text services for users to interact with friends and communities. Originally created for gamers, it has since expanded its user base to include various groups such as art communities, study groups, and local clubs.

Rebtel

Series B in 2018
Rebtel is a Stockholm-based technology company that aims to address communication, work, and banking challenges faced by migrants crossing borders. Led by experienced management from Kinnevik group companies, Rebtel offers innovative solutions through its platform for communication, money transfer, and independent work programs. With around 85 high-performing employees from over 35 nationalities, Rebtel is a profitable company known for its disruptive approach to technology.

Discord

Series E in 2018
Discord operates as a communication platform offering voice, video, and text services for users to interact with friends and communities. Originally created for gamers, it has since expanded its user base to include various groups such as art communities, study groups, and local clubs.

Hustle

Series A in 2017
Hustle, Inc. is a technology company that operates an online peer-to-peer text messaging platform designed to enhance communication for organizations. Founded in 2014 and based in San Francisco, California, Hustle provides a software-as-a-service solution that enables users to send personalized text messages for various purposes, including event attendance, fundraising, admissions, recruiting, advocacy, and sales and marketing. The platform facilitates two-way conversations, allowing organizations to engage in authentic dialogues with large audiences, thereby fostering genuine connections with supporters and customers. Hustle’s tools also support goal tracking, contact management, and conversation history viewing, empowering clients to strengthen relationships and broaden their outreach efforts effectively.

Netomi

Seed Round in 2017
Netomi is a company that specializes in developing a conversational artificial intelligence platform aimed at enhancing customer experience in commerce. Founded in 2015 and headquartered in San Mateo, California, with additional offices in New York and Gurugram, Netomi provides a no-code solution that integrates seamlessly with various platforms, including Zendesk, Salesforce, and Shopify. Its technology enables brands and businesses to automate customer interactions across multiple channels, such as mobile messaging, chat, email, and voice, allowing them to make product recommendations, answer queries about availability, and assist with purchases. Netomi's platform is designed to improve customer satisfaction and operational efficiency while reducing costs and reliance on developers. The company has established itself as a leader in customer experience AI, leveraging advanced AI technologies to help enterprises meet evolving customer expectations and deliver exceptional service.

Discord

Series D in 2017
Discord operates as a communication platform offering voice, video, and text services for users to interact with friends and communities. Originally created for gamers, it has since expanded its user base to include various groups such as art communities, study groups, and local clubs.

Hustle

Seed Round in 2016
Hustle, Inc. is a technology company that operates an online peer-to-peer text messaging platform designed to enhance communication for organizations. Founded in 2014 and based in San Francisco, California, Hustle provides a software-as-a-service solution that enables users to send personalized text messages for various purposes, including event attendance, fundraising, admissions, recruiting, advocacy, and sales and marketing. The platform facilitates two-way conversations, allowing organizations to engage in authentic dialogues with large audiences, thereby fostering genuine connections with supporters and customers. Hustle’s tools also support goal tracking, contact management, and conversation history viewing, empowering clients to strengthen relationships and broaden their outreach efforts effectively.

Imzy

Series A in 2016
Imzy is a social networking platform focused on fostering genuine conversations among individuals with shared interests and hobbies. It enables users to join various online communities and connect with people globally. The platform features threaded discussion forums that facilitate in-depth conversations, as well as live chat and messaging options for real-time interaction. Additionally, Imzy incorporates a unique tipping system that allows users to financially support one another while the company takes a percentage from each transaction. This approach not only enhances user engagement but also creates a sustainable business model that benefits both community members and leaders.

Front

Series A in 2016
Front is a communication hub that centralizes customer interactions across various digital channels to enhance relationship management. The platform focuses on streamlining conversations by integrating collaboration tools and contextual data from multiple systems, allowing teams to provide timely, accurate, and personalized communications. Over 7,500 businesses, including notable names like Shopify, Airbnb, and Hulu, utilize Front to improve their customer engagement. The company's multi-channel inbox platform specializes in consolidating communication, facilitating internal discussions, and incorporating social features, thus enabling users to chat effectively and save time. By placing customer conversations at the forefront, Front empowers organizations to build stronger relationships through each interaction.

Intercom

Series C in 2016
Founded in 2011, Intercom provides a customer communication platform for businesses to engage with customers personally at scale. Its platform offers tools like Acquire (live chat), Engage (targeted messaging), Learn (customer feedback), and Support (in-app assistance) across web, iOS, and Android applications.

Slack

Series F in 2016
Slack operates a cloud-based communication and collaboration platform for teams, enabling users to exchange messages, share files, integrate with business tools, and increase efficiency.

Gitter

Seed Round in 2015
Gitter is an open-source chat and networking platform based in London, United Kingdom, designed to facilitate the management, growth, and connection of communities through messaging and content discovery. The platform offers instant messaging services that streamline community collaboration, making it easy for users to create, organize, and expand their communities with simple invitations. Gitter integrates with various tools such as GitHub, Trello, and Jenkins, enhancing its functionality and usability for developers. Its core mission is to connect developers, fostering meaningful relationships among users and the technologies they utilize.

Slack

Series E in 2015
Slack operates a cloud-based communication and collaboration platform for teams, enabling users to exchange messages, share files, integrate with business tools, and increase efficiency.

Secret

Series B in 2014
Secret offers an online platform that enables users to share their personal secrets with other users anonymously. It owns and operates a mobile application that helps users to share and connect with friends. The company was founded in 2015 and is headquartered in San Francisco, California.

Sinch

Series A in 2014
Founded in 2008, Sinch is a global cloud communications company that enables businesses to engage with customers via mobile messaging, voice, and video. Its platform facilitates real-time, business-critical communication for numerous large enterprises worldwide.

Path

Series C in 2014
Path is a mobile photo-sharing and messaging service designed to foster personal social networks with a limit of up to 150 contacts. The platform allows users to capture and share significant life moments with close friends and family, emphasizing simplicity, quality, and privacy. Path enables group messaging and facilitates the importation of photos and graphics to various social networks. The company aims to enhance personal connections through its user-friendly interface and features, reflecting the belief that mobile technology can transform social interactions.

Secret

Seed Round in 2013
Secret offers an online platform that enables users to share their personal secrets with other users anonymously. It owns and operates a mobile application that helps users to share and connect with friends. The company was founded in 2015 and is headquartered in San Francisco, California.

IRCCloud

Seed Round in 2013
IRCCloud is a cloud-based IRC client that facilitates real-time communication for teams. The application allows users to stay connected and engage in group discussions from any location, minimizing reliance on emails and unnecessary meetings. By integrating various forms of media, such as images, videos, tweets, and code snippets, IRCCloud offers a unified interface that enhances collaboration and streamlines communication. This focus on instant messaging and connectivity positions IRCCloud as a modern solution for organizations seeking to improve their communication efficiency.

Path

Series B in 2012
Path is a mobile photo-sharing and messaging service designed to foster personal social networks with a limit of up to 150 contacts. The platform allows users to capture and share significant life moments with close friends and family, emphasizing simplicity, quality, and privacy. Path enables group messaging and facilitates the importation of photos and graphics to various social networks. The company aims to enhance personal connections through its user-friendly interface and features, reflecting the belief that mobile technology can transform social interactions.

Path

Series A in 2011
Path is a mobile photo-sharing and messaging service designed to foster personal social networks with a limit of up to 150 contacts. The platform allows users to capture and share significant life moments with close friends and family, emphasizing simplicity, quality, and privacy. Path enables group messaging and facilitates the importation of photos and graphics to various social networks. The company aims to enhance personal connections through its user-friendly interface and features, reflecting the belief that mobile technology can transform social interactions.

TweetDeck

Series B in 2010
TweetDeck is a Twitter client designed for desktop, web, and mobile devices, originally developed as an Adobe AIR application. It features a unique columned user interface that allows users to monitor multiple Twitter feeds in a concise and organized manner. This functionality enables users to categorize their main feed into specific topics or groups, providing a broader overview of tweets. In 2011, TweetDeck was acquired by Twitter, which subsequently rebuilt the application using HTML5 technology. The platform integrates various services, enhancing the user experience by allowing real-time monitoring of information from multiple sources.

Netlog

Series A in 2007
Netlog, established by Massive Media NV in Ghent, Belgium, operates as a European youth-focused online social portal. It facilitates users in maintaining and expanding their social networks, offering features such as creating personal web pages, chatting, playing games, sharing videos, and blogging. Available in 34 languages, Netlog boasts over 80 million members across Europe.

Rebtel

Series A in 2006
Rebtel is a Stockholm-based technology company that aims to address communication, work, and banking challenges faced by migrants crossing borders. Led by experienced management from Kinnevik group companies, Rebtel offers innovative solutions through its platform for communication, money transfer, and independent work programs. With around 85 high-performing employees from over 35 nationalities, Rebtel is a profitable company known for its disruptive approach to technology.

Skype

Series B in 2004
Skype is a messaging and VOIP service that enables voice and video calls, chats, and file transfers over the internet. It supports group video conversations and cross-device use on phones, computers, and other screens. The service includes features such as voicemail and call-forwarding, end-to-end encryption for calls and chats, and flexible options for personal or business use. Skype is a product of Microsoft, developed since its launch in 2003, and is associated with connecting people, colleagues, and customers across different locations, facilitating collaboration and communication globally. It is headquartered in Luxembourg.
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