# Index Ventures' Software Investments: 25 Startups in Its Portfolio (2026) > The 25 Software startups Index Ventures has backed, by stage: $2.0B raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/index-ventures-software-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Series C and later 7 - [Datadog](https://millionrounds.com/company/datadog) - [*H* Hortonworks](https://millionrounds.com/company/hortonworks) - [Zuora](https://millionrounds.com/company/zuora) - [OpTier](https://millionrounds.com/company/optier) - [Centrify](https://millionrounds.com/company/centrify) - [Pentaho](https://millionrounds.com/company/pentaho) - [TrialPay](https://millionrounds.com/company/trialpay) ## Series A 6 - [MetaPack](https://millionrounds.com/company/metapack) - [Milestone Systems](https://millionrounds.com/company/milestone-systems) - [*S* Strikingly](https://millionrounds.com/company/strikingly) - [Last.fm](https://millionrounds.com/company/last-fm) - [ArtBinder](https://millionrounds.com/company/artbinder) - [The Business of Fashion](https://millionrounds.com/company/the-business-of-fashion) ## Pre-seed and seed 5 - [Solvo](https://millionrounds.com/company/solvo) - [*W* Workflow](https://millionrounds.com/company/workflow) - [Upollo](https://millionrounds.com/company/upollo) - [Lookback](https://millionrounds.com/company/lookback) - [*F* Familiar](https://millionrounds.com/company/familiar) ## Series B 4 - [*W* Worklight](https://millionrounds.com/company/worklight) - [NationBuilder](https://millionrounds.com/company/nationbuilder) - [Gluster](https://millionrounds.com/company/gluster) - [PhotoBox](https://millionrounds.com/company/photobox) ## Stage not reported 3 - [VirtualLogix](https://millionrounds.com/company/virtuallogix) - [SourceLabs](https://millionrounds.com/company/sourcelabs) - [JustPark](https://millionrounds.com/company/justpark) ## Segment by segment ### Series C and later 7 startups · $1.8B raised - [**Datadog**](https://millionrounds.com/company/datadog) See metrics from all of your apps, tools & services in one place with Datadog’s cloud monitoring as a service solution. United States $1.0B - [*H* **Hortonworks**](https://millionrounds.com/company/hortonworks) Hortonworks is a business computer software company that focuses on the development and support of Apache Hadoop. United States $248M - [**Zuora**](https://millionrounds.com/company/zuora) Zuora was born out of a vision that we could evangelize a fundamentally new way of doing business by shifting the focus of compani United States $243M - [**OpTier**](https://millionrounds.com/company/optier) OpTier is a cloud-based platform that creates contextual big data to accelerate business growth and analyze business transactions. United States $118M - [**Centrify**](https://millionrounds.com/company/centrify) Centrify secures enterprise identities against cyberthreats that target today’s hybrid IT environment. United States $94M - [**Pentaho**](https://millionrounds.com/company/pentaho) Pentaho is a big data integration and analytics platform United States $72M - [**TrialPay**](https://millionrounds.com/company/trialpay) TrialPay is an offer-based payments platform enabling customers to pay for one item by trying or buying something else. United States $56M ### Series A 6 startups · $78M raised - [**MetaPack**](https://millionrounds.com/company/metapack) Metapack provides delivery management solutions that enable online retailers to increase user engagement and sales conversions. United Kingdom $31M - [**Milestone Systems**](https://millionrounds.com/company/milestone-systems) Milestone Systems develops open platform IP video management software, delivering easy-to-manage surveillance solutions for enterprises. Denmark $27M - [*S* **Strikingly**](https://millionrounds.com/company/strikingly) United States $7.5M - [**Last.fm**](https://millionrounds.com/company/last-fm) Last.fm is an online music catalogue providing users with personalized recommendations based on their taste in music. United Kingdom $6.9M - [**ArtBinder**](https://millionrounds.com/company/artbinder) ArtBinder is the leading application for galleries that allows users to present artworks remotely with simple, intuitive tools. United States $3.2M - [**The Business of Fashion**](https://millionrounds.com/company/the-business-of-fashion) The Business of Fashion is a online platform for the global fashion industry, offering content and tools to industry professionals. United Kingdom $2.1M ### Pre-seed and seed 5 startups · $13M raised - [**Solvo**](https://millionrounds.com/company/solvo) Solution for Innovation - numerical software Lithuania $3.5M - [*W* **Workflow**](https://millionrounds.com/company/workflow) Workflow connects your apps and services together to automate things you do every day. United Kingdom $3.0M - [**Upollo**](https://millionrounds.com/company/upollo) Upollo is an AI-powered revenue growth platform based in Sydney, Australia, founded in 2021. Australia $2.8M - [**Lookback**](https://millionrounds.com/company/lookback) Lookback is a platform for easy-to-use software testing solutions. Sweden $2.2M - [*F* **Familiar**](https://millionrounds.com/company/familiar) Familiar transforms idle screens into all-in-one picture frames, screensavers, and TV channels personalized using smart screen technology. United States $1.3M ### Series B 4 startups · $46M raised - [*W* **Worklight**](https://millionrounds.com/company/worklight) Worklight is a mobile application platform developing tools and software for smartphones and tablets. United States $18M - [**NationBuilder**](https://millionrounds.com/company/nationbuilder) NationBuilder is a community organizing software platform that helps people organize and build community-based relationships. United States $15M - [**Gluster**](https://millionrounds.com/company/gluster) Gluster is an open source, distributed file system that is capable of scaling to several petabytes and handling many clients. United States $8.5M - [**PhotoBox**](https://millionrounds.com/company/photobox) PhotoBox is Europe's leading community for sharing, printing and personal publishing with over 30 million members. United Kingdom $5.0M ### Stage not reported 3 startups · $42M raised - [**VirtualLogix**](https://millionrounds.com/company/virtuallogix) VirtualLogix develops and markets virtualization software solutions for connected devices and networks. United States $29M - [**SourceLabs**](https://millionrounds.com/company/sourcelabs) Sourcelabs is a software company. United States $7.0M - [**JustPark**](https://millionrounds.com/company/justpark) JustPark is a parking app reinventing parking for the digital era. United Kingdom $5.7M **How this map is made.** Every startup here works in Software and has raised money in a round we track that names Index Ventures as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Sector portfolio **Index Ventures' AI portfolio** 126 startups · $49B](https://millionrounds.com/portfolio-maps/index-ventures-ai-portfolio)[Sector portfolio **Index Ventures' Fintech portfolio** 46 startups · $11B](https://millionrounds.com/portfolio-maps/index-ventures-fintech-portfolio)[Sector portfolio **Index Ventures' IT Services portfolio** 37 startups · $871M](https://millionrounds.com/portfolio-maps/index-ventures-it-services-portfolio)[Sector portfolio **Index Ventures' Internet portfolio** 21 startups · $3.3B](https://millionrounds.com/portfolio-maps/index-ventures-internet-portfolio)[Sector portfolio **Index Ventures' Big Data & Analytics portfolio** 21 startups · $1.6B](https://millionrounds.com/portfolio-maps/index-ventures-big-data-analytics-portfolio)[Sector portfolio **Index Ventures' Cybersecurity portfolio** 18 startups · $1.7B](https://millionrounds.com/portfolio-maps/index-ventures-cybersecurity-portfolio) ## Raising from investors like Index Ventures? 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