Index Ventures

Index Ventures is a venture capital firm with offices in London, San Francisco, and Geneva that backs technology-driven startups worldwide. Since 1996 it has partnered with entrepreneurs to turn bold ideas into global businesses, investing across early and growth stages in sectors such as artificial intelligence, software, data, fintech, healthcare, media, mobility, security, and open source. The firm focuses on high-technology and life sciences and supports portfolio companies to scale internationally. Notable portfolio companies include Adyen, Deliveroo, Dropbox, Farfetch, King, Slack, and Supercell.

Nina Achadjian

Partner

Julia Andre

Principal / Partner

Damir Becirovic

Partner

Dino Becirovic

Principal

Bernard Dalle

Partner

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.

Plain

Series A in 2025
Plain develops customer service software tailored for modern companies. Its platform integrates with products via APIs, managing issues, chats, emails, and reporting while tracking customer problems without disrupting conversations.

Plain

Seed Round in 2022
Plain develops customer service software tailored for modern companies. Its platform integrates with products via APIs, managing issues, chats, emails, and reporting while tracking customer problems without disrupting conversations.

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.

Peanut App

Series A in 2020
Peanut App Limited is a London-based company that has developed a social networking application designed to connect mothers with similar interests and children of comparable ages. Launched in 2016, the app provides a platform for women to create group chats and organize face-to-face meetings, fostering a sense of community and support among users. Peanut aims to offer a safe space for women to build friendships, share experiences, and learn from one another, making it a unique resource for mothers navigating similar life stages. The application is available for free on both iOS and Android devices.

Peanut App

Series A in 2019
Peanut App Limited is a London-based company that has developed a social networking application designed to connect mothers with similar interests and children of comparable ages. Launched in 2016, the app provides a platform for women to create group chats and organize face-to-face meetings, fostering a sense of community and support among users. Peanut aims to offer a safe space for women to build friendships, share experiences, and learn from one another, making it a unique resource for mothers navigating similar life stages. The application is available for free on both iOS and Android devices.

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.

GAMEE

Convertible Note in 2018
GAMEE is a blockchain-based casual gaming platform that engages users through missions, tournaments, and rewards. Its platform supports a diverse portfolio of casual games and integrates blockchain tokens for in-game rewards and purchases, enabling play-to-earn mechanics. The company targets mainstream players by combining accessible gameplay with blockchain benefits, aiming to recognize skill, effort, and loyalty. It emphasizes partnerships with global brands and leverages a large community presence on messaging apps to foster interactive entertainment and asset earning. Founded in 2015, GAMEE expanded into a larger ecosystem under Animoca Brands after being acquired in 2020, continuing to develop a social gaming network that combines casual play with Web3 elements.

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.

Teatime Games

Series A in 2018
Teatime Games Inc. is an Iceland-based company that specializes in designing and developing a social gaming platform. Founded in 2017 and headquartered in Reykjavik, Teatime Games aims to reinvent social games by integrating a unique online mobile gaming experience. The platform allows users to engage with one another through face-to-face interactions via built-in video chat while playing games on their phones, fostering a dynamic environment for social interaction and entertainment.

Slite

Seed Round in 2018
Slite is a collaborative software platform designed to help organizations create, organize, and share knowledge efficiently. Its application enables teams to develop and manage documents collectively, offering features such as real-time editing, Slack integration, and public link sharing. By centralizing company information in a structured and accessible manner, Slite allows users to find answers quickly and keeps documentation up-to-date without the need for extensive searching. The platform serves as a single source of truth for over 200,000 companies, streamlining workflows and enhancing collaboration within teams.

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.

Teatime Games

Seed Round in 2017
Teatime Games Inc. is an Iceland-based company that specializes in designing and developing a social gaming platform. Founded in 2017 and headquartered in Reykjavik, Teatime Games aims to reinvent social games by integrating a unique online mobile gaming experience. The platform allows users to engage with one another through face-to-face interactions via built-in video chat while playing games on their phones, fostering a dynamic environment for social interaction and entertainment.

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.

GAMEE

Seed Round in 2017
GAMEE is a blockchain-based casual gaming platform that engages users through missions, tournaments, and rewards. Its platform supports a diverse portfolio of casual games and integrates blockchain tokens for in-game rewards and purchases, enabling play-to-earn mechanics. The company targets mainstream players by combining accessible gameplay with blockchain benefits, aiming to recognize skill, effort, and loyalty. It emphasizes partnerships with global brands and leverages a large community presence on messaging apps to foster interactive entertainment and asset earning. Founded in 2015, GAMEE expanded into a larger ecosystem under Animoca Brands after being acquired in 2020, continuing to develop a social gaming network that combines casual play with Web3 elements.

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 Technologies

Series F in 2016
Slack Technologies is a cloud-based business communication and collaboration platform for teams. The service combines messaging, file sharing, voice and video calls, a workflow builder, and extensive app integrations to unify people, tools, and data in a single interface. Sold as software as a service, Slack aims to improve workplace efficiency and information flow across industries worldwide. The company was founded in 2009 and is headquartered in San Francisco, California, originally under the name Tiny Speck before rebranding to Slack. Slack serves organizations of various sizes, providing a scalable platform that streamlines communication and collaboration across departments.

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 Technologies

Series E in 2015
Slack Technologies is a cloud-based business communication and collaboration platform for teams. The service combines messaging, file sharing, voice and video calls, a workflow builder, and extensive app integrations to unify people, tools, and data in a single interface. Sold as software as a service, Slack aims to improve workplace efficiency and information flow across industries worldwide. The company was founded in 2009 and is headquartered in San Francisco, California, originally under the name Tiny Speck before rebranding to Slack. Slack serves organizations of various sizes, providing a scalable platform that streamlines communication and collaboration across departments.

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.

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.

Fuze, an 8x8 company

Series A in 2012
Fuze Digital Solutions, LLC is a provider of a cloud-based unified communications platform that enhances productivity and collaboration within enterprises. The platform, known as Fuze Suite, offers various features including business voice communications, video conferencing, and a suite of tools for customer care and engagement. These tools encompass a community knowledge base, case management, chat, feedback management, and online reporting, all designed to foster customer loyalty through effective communication. Founded in 2002 and originally known as ThinkingPhones, Fuze serves a diverse clientele, including organizations like Careerbuilder.com and Oregon Health & Sciences University. The company is headquartered in Boston, Massachusetts, with additional offices in major cities across North America and Europe, positioning itself as a key player in the unified communications market.

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.

Desk.com

Series B in 2011
Desk.com is an online customer service software and support ticket help desk application designed for small businesses and rapidly growing companies. Founded in 2009 and based in San Francisco, California, it provides a multi-channel support platform that facilitates communication through email, social media, chat, discussion boards, and phone support. The company offers a self-service portal that includes support articles, community-driven questions and answers, and a personalized dashboard for tracking interactions. Additionally, Desk.com features configurable widgets to showcase relevant content and updates. As a subsidiary of Salesforce.com, it aims to enhance customer support experiences by equipping businesses with essential collaboration tools and a mobile application to address customer inquiries effectively.

GroupSpaces

Venture Round in 2010
GroupSpaces Limited is a London-based company that offers a self-service online platform for managing membership groups, including clubs, charities, professional associations, and alumni networks. Founded in 2007, the company aims to simplify the administration of these groups by providing tools that allow leaders and committees to manage member records, send newsletters, host forums, organize events, and collect membership fees. GroupSpaces' software supports over 1 million memberships across various sectors, helping users effectively manage their activities and enhance their online presence. The company was established to address challenges faced by its founders during their time at Oxford University, and it serves a global customer base.

Mimecast

Series B in 2010
Mimecast is a software-as-a-service provider offering cloud-based email security, continuity, and information archiving to protect organizations from email-borne threats and data leaks. Its integrated cloud platform delivers email security to block malware, phishing, impersonation, and spam; cyber resilience extensions include enterprise information archiving for e-discovery and compliance, mailbox continuity to maintain email access during outages, and web security to block malicious or inappropriate sites. Additional services include secure messaging, privacy protection, and Large File Send to manage secure file transfers, plus a Threat Intelligence Dashboard that analyzes organizational cyber risk. The company supports customers globally via direct sales and channel partners and operates a global data center footprint. Founded in 2003 and headquartered in London, Mimecast serves thousands of companies worldwide, handling millions of emails and documents daily through its cloud architecture.

Dimdim

Series B in 2008
Dimdim is a developer of web conferencing solutions that offers a browser-based service built on an open-source platform. This allows users to download and install the open-source code on their own servers, ensuring flexibility and control over their conferencing needs. Attendees can participate in meetings without the requirement to download additional software. Dimdim's platform enables presenters to share their desktops, display slides, and engage in audio and video communication, along with chat features. The company provides a range of products, including Dimdim Pro and Dimdim Enterprise, which facilitate content sharing and management, web collaboration, and broadcasting capabilities.

Dimdim

Series A in 2007
Dimdim is a developer of web conferencing solutions that offers a browser-based service built on an open-source platform. This allows users to download and install the open-source code on their own servers, ensuring flexibility and control over their conferencing needs. Attendees can participate in meetings without the requirement to download additional software. Dimdim's platform enables presenters to share their desktops, display slides, and engage in audio and video communication, along with chat features. The company provides a range of products, including Dimdim Pro and Dimdim Enterprise, which facilitate content sharing and management, web collaboration, and broadcasting capabilities.

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.

AllPeers

Series A in 2006
AllPeers is an open-source software extension for the Mozilla Firefox browser that allows users to share files, folders, web page images, and links from right within their Firefox browsers using P2P (peer-to-peer) technology. The AllPeers Navigator enables users to maintain contacts, chat, and share items with the people on their lists. Users can include a subject line and a text message when sharing items. When other users share items with them, a notification appears in the bottom right hand corner of their browser window. The ""add a contact"" button lets users import contacts from Gmail, Hotmail, Outlook, and more. Files, folders, and images that users wish to share can be dragged and dropped into the Share window. Links to web pages can be shared by dragging and dropping the page's browser tab into the Share window. Download location and bandwidth speed can be set using the toolbar's Preferences button. AllPeers was launched by Cedric Maloux and Matthew Gertner and is operated from Oxford, United Kingdom.

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.

Respond.com

Venture Round in 2002
Respond.com is an online marketplace that facilitates connections between consumers ready to make purchases and quality local businesses. Founded in 1998 and operated by the TEOCO Corporation, Respond allows users to submit a single request form and receive responses from up to four local service providers across three primary markets: Weddings & Events, Home Services, and Financial Services. The platform is designed to provide a spam-free experience, enabling consumers to request product information while maintaining their anonymity. This approach not only empowers shoppers with direct access to information but also helps merchants acquire new customers. Over the past decade, Respond has assisted more than five million users in finding local service providers.
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