Index Ventures, established in 1996, is a global venture capital firm with offices in London, San Francisco, and Geneva. The company invests in early and growth-stage technology startups, focusing on sectors such as software, artificial intelligence, machine learning, fintech, healthcare, and mobility. Index Ventures has a proven track record of backing successful companies like Adyen, Deliveroo, Dropbox, Farfetch, King, Slack, and Supercell. The firm's investment strategy is to support bold entrepreneurs with transformative ideas, helping them build global businesses.
3 Burlington Gardens London W1S 3EP United Kingdom
139 Townsend Street Suite 505 San Francisco, CA 94107 USA
Rue de Jargonnant 2 1207 Geneva Switzerland
2nd Floor 24 Sand Street St Helier, Jersey JE2 3QF
Nina Achadjian
Partner
Julia Andre
Principal / Partner
Damir Becirovic
Partner
Sofia Dolfe
Partner and Investor
Paula Garcia Domingo
Partner and Investor
Juriaan Duizendstraal Bensoussan
Partner and Investor
Zabie Elmgren
Partner
Mark Fiorentino
Partner
Giacomo Genzini
Partner and Investor
Mark Goldberg
Partner
Jan Hammer
Partner and Investor
Paris Heymann
Partner and Investor
Jack Kleeman
Partner
Adrianna Ma
Operating Partner
Martin Mignot
Partner
Bryan Offut
Principal / Partner
Bryan Offutt
Partner and Investor
Shimin Ooi
Partner
Cyriac Parisot
VC Investor and Head of Data
Erin Price-Wright
Principal / Partner
Neil Rimer
General Partner, Founder
Danny Rimer
Partner
Susana Rojas
Partner and Investor
Emil Schaefer
Partner
Hannah Seal
Partner and Investor
Kimihiko Shindo
General Partner
Georgia Stevenson
Principal / Partner
Ishani Thakur
Partner and investor
Kelly Toole
Partner
Dominique Vidal
Venture Partner
Mike Volpi
Partner
Katharina Wilhelm
Principal, Partner
Catherine Wu
Partner
Cat Wu
Partner
Mark Xu
Partner
Giuseppe Zocco
Co-Founder
Past deals in Messaging
incident.io
Series B in 2025
Incident.io is a Slack-integrated incident management tool that streamlines the process of announcing, managing, and resolving incidents within a single channel. The platform facilitates effective communication during outages by enabling organizations to report incidents in a consistent format. It provides default solutions for incident handling, such as creating dedicated communication channels for team discussions, updating customers, and assigning specific roles to team members. Additionally, Incident.io offers a virtual war room feature for managing incidents directly within Slack, and it automates key workflows to enhance efficiency. This approach helps organizations respond more effectively to incidents and improves overall communication during critical situations.
incident.io
Series A in 2022
Incident.io is a Slack-integrated incident management tool that streamlines the process of announcing, managing, and resolving incidents within a single channel. The platform facilitates effective communication during outages by enabling organizations to report incidents in a consistent format. It provides default solutions for incident handling, such as creating dedicated communication channels for team discussions, updating customers, and assigning specific roles to team members. Additionally, Incident.io offers a virtual war room feature for managing incidents directly within Slack, and it automates key workflows to enhance efficiency. This approach helps organizations respond more effectively to incidents and improves overall communication during critical situations.
incident.io
Seed Round in 2021
Incident.io is a Slack-integrated incident management tool that streamlines the process of announcing, managing, and resolving incidents within a single channel. The platform facilitates effective communication during outages by enabling organizations to report incidents in a consistent format. It provides default solutions for incident handling, such as creating dedicated communication channels for team discussions, updating customers, and assigning specific roles to team members. Additionally, Incident.io offers a virtual war room feature for managing incidents directly within Slack, and it automates key workflows to enhance efficiency. This approach helps organizations respond more effectively to incidents and improves overall communication during critical situations.
Discord
Series H in 2020
Discord is a communication platform that offers voice, video, and text services, enabling users to connect with friends and communities. Originally designed for gamers, it has evolved to serve a broader audience, including local clubs, art groups, and study sessions. The platform supports voice-over-internet protocol and texting, ensuring seamless communication across desktops and mobile devices. This versatility allows users to engage in conversations and activities without compromising performance, particularly for gamers who require uninterrupted communication while playing. Discord's focus on community interaction has made it a popular choice for diverse groups seeking to collaborate and socialize online.
Discord
Series G in 2020
Discord is a communication platform that offers voice, video, and text services, enabling users to connect with friends and communities. Originally designed for gamers, it has evolved to serve a broader audience, including local clubs, art groups, and study sessions. The platform supports voice-over-internet protocol and texting, ensuring seamless communication across desktops and mobile devices. This versatility allows users to engage in conversations and activities without compromising performance, particularly for gamers who require uninterrupted communication while playing. Discord's focus on community interaction has made it a popular choice for diverse groups seeking to collaborate and socialize online.
Confluent
Series E in 2020
Confluent, Inc. is a technology company that specializes in real-time data integration and stream processing, primarily through its platform based on Apache Kafka. The platform enables organizations to access and manage data as real-time streams, facilitating the movement of data from isolated systems into a cohesive data pipeline for immediate action. Confluent's product offerings include Confluent Cloud, a managed streaming service, and various tools such as Confluent Operator for Kubernetes, KSQL for interactive queries, and ksqlDB, an event streaming database. Founded in 2014 and headquartered in Mountain View, California, Confluent serves a diverse range of sectors including financial services, insurance, retail, automotive, and government. The company generates revenue through subscriptions and services, with a significant portion coming from the United States. Confluent aims to create a centralized data infrastructure that connects applications, systems, and data layers, enabling organizations to leverage real-time insights effectively.
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 designed for small and medium businesses, particularly in the salon and spa sectors. It utilizes conversational technologies and chatbots, primarily through platforms like Facebook Messenger, to enhance customer engagement and retention. The software features a suite of tools including loyalty programs, referral programs, customer review systems, feedback collection, SMS and Messenger marketing, and marketing automation. These tools work seamlessly together, allowing businesses to streamline their marketing efforts with minimal manual intervention through automated processes and ready-to-use content templates. RetentionForce is highly customizable, enabling users to select specific features or integrate the full range of marketing tools to support sustainable growth. It offers a free plan to help businesses start and provides scalable options for various stages of 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 develops a conversational artificial intelligence platform designed to enhance customer experiences for brands and businesses. The platform enables seamless interactions on mobile messaging applications, allowing users to make product recommendations, inquire about product availability, and receive assistance with purchases. Additionally, it automates routine customer service tasks across various sectors, including retail, e-commerce, gaming, telecommunications, and travel. Netomi's solutions support multiple channels, such as messaging, chat, email, and voice, and are designed to be easily integrated with popular tools like Zendesk, Salesforce, and Shopify. Founded in 2015 and based in San Mateo, California, with additional offices in New York and Gurugram, India, Netomi has established itself as a leader in customer experience AI, emphasizing operational efficiency and customer satisfaction. Its no-code deployment model allows for quick implementation and scalability, enabling businesses to meet evolving customer expectations effectively.
Confluent
Series D in 2019
Confluent, Inc. is a technology company that specializes in real-time data integration and stream processing, primarily through its platform based on Apache Kafka. The platform enables organizations to access and manage data as real-time streams, facilitating the movement of data from isolated systems into a cohesive data pipeline for immediate action. Confluent's product offerings include Confluent Cloud, a managed streaming service, and various tools such as Confluent Operator for Kubernetes, KSQL for interactive queries, and ksqlDB, an event streaming database. Founded in 2014 and headquartered in Mountain View, California, Confluent serves a diverse range of sectors including financial services, insurance, retail, automotive, and government. The company generates revenue through subscriptions and services, with a significant portion coming from the United States. Confluent aims to create a centralized data infrastructure that connects applications, systems, and data layers, enabling organizations to leverage real-time insights effectively.
Discord
Series F in 2018
Discord is a communication platform that offers voice, video, and text services, enabling users to connect with friends and communities. Originally designed for gamers, it has evolved to serve a broader audience, including local clubs, art groups, and study sessions. The platform supports voice-over-internet protocol and texting, ensuring seamless communication across desktops and mobile devices. This versatility allows users to engage in conversations and activities without compromising performance, particularly for gamers who require uninterrupted communication while playing. Discord's focus on community interaction has made it a popular choice for diverse groups seeking to collaborate and socialize online.
Rebtel
Series B in 2018
Rebtel is a company focused on addressing the challenges faced by migrants, including communication, work, and banking issues. Founded in Stockholm, Sweden, Rebtel offers a mobile application that provides Voice over Internet Protocol (VoIP) services, allowing users to make international calls, send messages, and transfer money at ultra-low rates. The company also features an independent work program called Activist, designed to create job opportunities for its users. With a diverse team of 85 employees from over 35 nationalities, Rebtel has established itself as a profitable and innovative player in the telecommunications sector, leveraging technology to facilitate seamless connections for those crossing borders in search of better opportunities.
Discord
Series E in 2018
Discord is a communication platform that offers voice, video, and text services, enabling users to connect with friends and communities. Originally designed for gamers, it has evolved to serve a broader audience, including local clubs, art groups, and study sessions. The platform supports voice-over-internet protocol and texting, ensuring seamless communication across desktops and mobile devices. This versatility allows users to engage in conversations and activities without compromising performance, particularly for gamers who require uninterrupted communication while playing. Discord's focus on community interaction has made it a popular choice for diverse groups seeking to collaborate and socialize online.
Hustle
Series A in 2017
Hustle, Inc. operates a peer-to-peer text messaging platform that allows organizations to communicate directly with their contacts. Founded in 2014 and based in San Francisco, the company offers a software-as-a-service solution that supports personal text messaging for various purposes, including event attendance, fundraising, admissions, recruiting, advocacy, and sales and marketing. Hustle's platform emphasizes two-way conversations, enabling users to engage in meaningful dialogues with large audiences. It also provides tools for tracking goals, managing contacts, and viewing conversation histories, which help clients strengthen relationships and enhance their outreach efforts. Through this approach, Hustle aims to connect organizations with a broader demographic in an efficient and effective manner.
Confluent
Series C in 2017
Confluent, Inc. is a technology company that specializes in real-time data integration and stream processing, primarily through its platform based on Apache Kafka. The platform enables organizations to access and manage data as real-time streams, facilitating the movement of data from isolated systems into a cohesive data pipeline for immediate action. Confluent's product offerings include Confluent Cloud, a managed streaming service, and various tools such as Confluent Operator for Kubernetes, KSQL for interactive queries, and ksqlDB, an event streaming database. Founded in 2014 and headquartered in Mountain View, California, Confluent serves a diverse range of sectors including financial services, insurance, retail, automotive, and government. The company generates revenue through subscriptions and services, with a significant portion coming from the United States. Confluent aims to create a centralized data infrastructure that connects applications, systems, and data layers, enabling organizations to leverage real-time insights effectively.
Netomi
Seed Round in 2017
Netomi develops a conversational artificial intelligence platform designed to enhance customer experiences for brands and businesses. The platform enables seamless interactions on mobile messaging applications, allowing users to make product recommendations, inquire about product availability, and receive assistance with purchases. Additionally, it automates routine customer service tasks across various sectors, including retail, e-commerce, gaming, telecommunications, and travel. Netomi's solutions support multiple channels, such as messaging, chat, email, and voice, and are designed to be easily integrated with popular tools like Zendesk, Salesforce, and Shopify. Founded in 2015 and based in San Mateo, California, with additional offices in New York and Gurugram, India, Netomi has established itself as a leader in customer experience AI, emphasizing operational efficiency and customer satisfaction. Its no-code deployment model allows for quick implementation and scalability, enabling businesses to meet evolving customer expectations effectively.
Discord
Series D in 2017
Discord is a communication platform that offers voice, video, and text services, enabling users to connect with friends and communities. Originally designed for gamers, it has evolved to serve a broader audience, including local clubs, art groups, and study sessions. The platform supports voice-over-internet protocol and texting, ensuring seamless communication across desktops and mobile devices. This versatility allows users to engage in conversations and activities without compromising performance, particularly for gamers who require uninterrupted communication while playing. Discord's focus on community interaction has made it a popular choice for diverse groups seeking to collaborate and socialize online.
Hustle
Seed Round in 2016
Hustle, Inc. operates a peer-to-peer text messaging platform that allows organizations to communicate directly with their contacts. Founded in 2014 and based in San Francisco, the company offers a software-as-a-service solution that supports personal text messaging for various purposes, including event attendance, fundraising, admissions, recruiting, advocacy, and sales and marketing. Hustle's platform emphasizes two-way conversations, enabling users to engage in meaningful dialogues with large audiences. It also provides tools for tracking goals, managing contacts, and viewing conversation histories, which help clients strengthen relationships and enhance their outreach efforts. Through this approach, Hustle aims to connect organizations with a broader demographic in an efficient and effective manner.
Imzy
Series A in 2016
Imzy is a social networking platform designed to foster genuine conversations among users with shared interests, hobbies, and lifestyles. By enabling individuals to join various online communities, Imzy facilitates connections among people worldwide. The platform features threaded discussion forums for in-depth dialogue, as well as live chat and messaging for real-time communication. Additionally, Imzy incorporates a tipping system that allows users to support one another financially, with the company taking a percentage of each transaction. This model not only enhances user interaction but also provides an opportunity for community leaders and members to earn income while engaging in meaningful exchanges.
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
Intercom, Inc. is a customer communication platform designed to facilitate interactions between businesses and their customers across web and mobile platforms. Established in 2011 and headquartered in San Francisco, with an additional office in Dublin, Intercom enables teams to engage with customers personally and at scale. The platform includes several core products: Acquire, which allows businesses to chat with website visitors; Engage, which helps onboard and retain customers through targeted messaging; Learn, which gathers customer feedback; and Support, which assists users within web and mobile applications. With over 25,000 global organizations, including well-known companies like Atlassian, Amazon, and Lyft Business, utilizing its services, Intercom sends more than 500 million messages each month, reaching over 600 million active end users, thereby redefining customer support through effective messaging and automation.
Slack
Series F in 2016
Slack Technologies, Inc., established in 2009 and headquartered in San Francisco, operates a cloud-based communication and collaboration platform, Slack. This platform facilitates team messaging, file sharing, and integration with various business tools, catering to a wide range of industries, from startups to large enterprises. Slack's software-as-a-service model enables real-time communication and data sharing, aiming to increase organizational efficiency and productivity.
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. It provides users with instant messaging services that simplify community collaboration, allowing for easy organization and expansion of groups. The platform integrates with various tools such as GitHub, Trello, and Jenkins, enhancing its functionality for developers. Gitter's mission focuses on connecting developers to foster strong relationships among peers and with the technologies they utilize.
Confluent
Series B in 2015
Confluent, Inc. is a technology company that specializes in real-time data integration and stream processing, primarily through its platform based on Apache Kafka. The platform enables organizations to access and manage data as real-time streams, facilitating the movement of data from isolated systems into a cohesive data pipeline for immediate action. Confluent's product offerings include Confluent Cloud, a managed streaming service, and various tools such as Confluent Operator for Kubernetes, KSQL for interactive queries, and ksqlDB, an event streaming database. Founded in 2014 and headquartered in Mountain View, California, Confluent serves a diverse range of sectors including financial services, insurance, retail, automotive, and government. The company generates revenue through subscriptions and services, with a significant portion coming from the United States. Confluent aims to create a centralized data infrastructure that connects applications, systems, and data layers, enabling organizations to leverage real-time insights effectively.
Slack
Series E in 2015
Slack Technologies, Inc., established in 2009 and headquartered in San Francisco, operates a cloud-based communication and collaboration platform, Slack. This platform facilitates team messaging, file sharing, and integration with various business tools, catering to a wide range of industries, from startups to large enterprises. Slack's software-as-a-service model enables real-time communication and data sharing, aiming to increase organizational efficiency and productivity.
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
Sinch is a cloud communications company headquartered in Stockholm, Sweden, that connects businesses with customers through a range of communication tools. Founded in 2008, the company offers a platform that enables mobile messaging, voice, and video services, allowing businesses to reach every mobile phone globally in seconds. Sinch provides cloud communication services to both enterprises and mobile operators, with key segments including Messaging, Voice, Email, and support for small and medium-sized businesses. The Messaging segment is a significant revenue driver, focusing on handling messages and executing personalized video and multimedia messaging for enterprises. With operations in over 30 countries, Sinch powers critical communications for many of the world's largest companies, facilitating seamless integration of communication capabilities into various applications and business processes.
Path
Series C in 2014
Path is a mobile photo-sharing and messaging service for building personal social networks with up to 150 contacts. Currently Path Places. Path Talk and Path sold to Daum Kakao May 28, 2015. Path brings people closer together. Guided by the belief that mobile technology will fundamentally change the cultural, social, and economic landscape, Path focuses on simplicity, quality, and privacy to provide the best mobile personal networking service in the world. Path was designed with the people they love, closest friends, and family in mind.
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. It allows users to stay connected and engage in discussions from any location, ensuring that messages are never missed. By integrating various media types, such as images, videos, tweets, and code snippets, the platform enhances group communication and promotes collaboration. This approach helps teams reduce the need for unnecessary meetings and minimizes reliance on email, streamlining the communication process and enabling more efficient interactions.
Zendesk
Series D in 2012
Zendesk, established in 2007, is a leading customer service platform that develops and provides cloud-based software solutions. Headquartered in San Francisco, California, Zendesk empowers organizations to enhance customer engagement and understanding by offering a unified, multi-channel customer communication system. Its software, easy to use and implement, enables businesses to scale quickly, focus on innovation, and serve over 150,000 customers across diverse industries and languages.
Path
Series B in 2012
Path is a mobile photo-sharing and messaging service for building personal social networks with up to 150 contacts. Currently Path Places. Path Talk and Path sold to Daum Kakao May 28, 2015. Path brings people closer together. Guided by the belief that mobile technology will fundamentally change the cultural, social, and economic landscape, Path focuses on simplicity, quality, and privacy to provide the best mobile personal networking service in the world. Path was designed with the people they love, closest friends, and family in mind.
Path
Series A in 2011
Path is a mobile photo-sharing and messaging service for building personal social networks with up to 150 contacts. Currently Path Places. Path Talk and Path sold to Daum Kakao May 28, 2015. Path brings people closer together. Guided by the belief that mobile technology will fundamentally change the cultural, social, and economic landscape, Path focuses on simplicity, quality, and privacy to provide the best mobile personal networking service in the world. Path was designed with the people they love, closest friends, and family in mind.
TweetDeck
Series B in 2010
TweetDeck is a Twitter client designed for desktop, web, and mobile devices, featuring a unique columned user interface that allows users to manage and monitor Twitter feeds efficiently. Originally developed as an Adobe AIR application, TweetDeck enables users to organize their main feed into topic or group-specific columns, offering a broader overview of tweets in real-time. The application integrates various social media services, including Twitter and Facebook, to enhance user experience. In 2011, TweetDeck was acquired by Twitter, which subsequently rebuilt the application using HTML5 technology, further improving its functionality and accessibility.
Rebtel
Series A in 2006
Rebtel is a company focused on addressing the challenges faced by migrants, including communication, work, and banking issues. Founded in Stockholm, Sweden, Rebtel offers a mobile application that provides Voice over Internet Protocol (VoIP) services, allowing users to make international calls, send messages, and transfer money at ultra-low rates. The company also features an independent work program called Activist, designed to create job opportunities for its users. With a diverse team of 85 employees from over 35 nationalities, Rebtel has established itself as a profitable and innovative player in the telecommunications sector, leveraging technology to facilitate seamless connections for those crossing borders in search of better opportunities.
Skype
Series B in 2004
Skype, founded in 2003 and headquartered in Luxembourg, is a division of Microsoft Corp. It specializes in providing a unified communications platform that enables users to engage in voice, video calls, and instant messaging over the internet. Skype's services, which include text, voice, and video functionalities, facilitate real-time collaboration and communication, making it suitable for both personal and professional use. The platform offers free basic services, such as one-to-one and group calls, and also provides paid options for additional features like calling landlines, accessing WiFi, or sending texts. Skype's user-friendly interface and cross-platform compatibility make it accessible on various devices, including computers, smartphones, and TVs with Skype integration.
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