Best Open Source Companies in Massachusetts, United States
The 35 best Open Source companies in Massachusetts, United States in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Solo.io.
Ranked: Best Open Source companies in Massachusetts
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Web popularity | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Solo.io 🦄 Connects applications with APIs and service mesh across any infrastructures | $175M | 60 mo ago | 33 | Idit Levine Founder & CEO | WebflowSentryAmazon Web Services+22 | Top 5M | — | — |
| 2 | Acquia Provider of a digital experience platform for content, community, and commerce | $174M | 133 mo ago | 612 612 → 1,097 (+79%) | Dries Buytaert Co-Founder & CTO | DrupalSentryAtlassian Statuspage+41 | Top 1M | — | — |
| 3 | Posit Posit | The Open-Source Data Science Company | $164M | 52 mo ago | 364 | J Allaire Founder and CEO | WordPressAlgoliaMySQL+32 | Top 100k | — | — |
| 4 | Rapid7 Provider of cybersecurity solutions for exposure management, threat intelligence, and response | $92M | 98 mo ago | 2,623 2,623 → 3,279 (+25%) | — | SkilljarApple iCloud MailGoogle Workspace+27 | Top 500k | 469 patents Event-driven cloud security monitoring, vulnerability assessment, and network attack path analysis | — |
| 5 | EDB Relational database management system based on postgreSQL | $84M | 52 mo ago | 11,019 | Edouard Benadava Founder | DrupalApple iCloud MailPHP+34 | Top 100k | — | — |
| 6 | Alfresco Provider of Alvis car services including restoration, repair, and sales | $64M | 146 mo ago | 201 | — | SalesforceAmazon Web ServicesHighlight.js+6 | Top 5M | — | — |
| 7 | Basho Resilient NoSQL database solutions for scalable, distributed systems | $53M | 141 mo ago | 113 | — | — | — | — | — |
| 8 | Volt Active Data Developer of a data platform for real-time streaming and decisions | $49M | 48 mo ago | 29 29 → 46 (+59%) | David Flower President & Chief Executive Officer | WordPress Site EditorWordPressPlesk+27 | Top 10M | — | — |
| 9 | Ambassador Developer of a cloud-based container development solution for edge computing | $42M | 49 mo ago | 52 52 → 94 (+81%) | Richard Li Richard has a account Founder & CEO | WebflowLeadfeederLinkedin Insight Tag+19 | Top 5M | — | — |
| 10 | RapidMiner Provider of data science platform on open stack | $36M | 83 mo ago | 17 | — | Atlassian Jira Issue CollectorAlgoliaSalesforce+29 | Top 1M | — | — |
| 11 | Bluespec Provider of electronic design synthesis tools for integrated circuits & FPGAs | $27M | 44 mo ago | 33 | — | EmotionReactGatsby+12 | Top 50M | 5 patents Multi-clock domain hardware design automation and simulation control tools | — |
| 12 | Tesora corp Cloud database as a service for OpenStack | $16M | 135 mo ago | 28 | — | — | — | 11 patents Optimizing distributed, elastic parallel database query execution and resource provisioning | — |
| 13 | Cloudant Hyperscale, resilient, globally available data layer for applications | $15M | 161 mo ago | 13 | — | — | — | — | — |
| 14 | Modo Labs Digital engagement and no-code application development platform | $14M | 123 mo ago | 89 89 → 89 (+0%) | — | WordPressApple iCloud MailGoogle Workspace+34 | Top 10M | 8 patents Middleware frameworks for adaptive web/native app development and medical device connectivity | — |
| 15 | DataCebo Generative AI platform to create and manage synthetic data applications | $8M | 38 mo ago | 12 | Kalyan Veeramachaneni Co-Founder & CEO | — | — | — | — |
| 16 | Dimdim Provider of a browser based web conferencing solutions | $8M | 219 mo ago | 51 | — | — | — | — | — |
| 17 | Mycroft Provider of a natural language processing platform for speech recognition applications | $5M | 64 mo ago | 26 | Michael Lewis Chief Executive Officer | — | — | — | — |
| 18 | Curoverse Biomedical data solutions empowering precision medicine through open source technology | $2M | 139 mo ago | 15 | — | — | — | — | — |
| 19 | OpenNebula Cloud management solutions provider | $2M | 54 mo ago | — | Ignacio Llorente Chief Executive Officer | WordPressApple iCloud MailGoogle Workspace+27 | Top 5M | — | — |
| 20 | Architexa Understand, document, and share complex codebases with architectural diagrams | $207K | 170 mo ago | 24 | Vineet Sinha Founder & CTO | — | — | — | — |
| 21 | Appsembler Hands-on training platform with virtual IT labs and Open edX | $118K | 177 mo ago | 4 | Nate Aune Founder & CEO | WordPressBetterDocsMySQL+36 | Top 10M | — | — |
| 22 | UDOO Developer of open source Arduino-powered Mini PC | $100K | 99 mo ago | — | Maurizio Caporali Co-Founder | WordPressMySQLPHP+24 | Top 5M | — | — |
Top 12 Open Source companies in Massachusetts
#1
Series C · Framingham, Massachusetts · founded 2003 · 33 employees$26.8Mraised▾
Provider of electronic design synthesis tools for integrated circuits & FPGAs. It develops tools for speed integration, debugging and verification of embedded systems. It enables the synthesis of models and test benches along with legacy IP to employ emulation for modelling, verification, and early software development. It also offers open-source hardware, which simulates factory cores.
- Feb 2023Series C$5M
- Jan 2012Series C$1.5M
- Feb 2011Series C$1M
- Jun 2009Series C$2M
#2
Series C · Bedford, Massachusetts · founded 2009 · 29 employees$48.6Mraised▾
Developer of a data platform for real-time streaming and decisions. The platform unifies streaming and transactional workloads, providing low latency and data consistency. It supports use cases such as fraud prevention, hyper-personalization, and private networks. The platform also supports industrial internet of things, artificial intelligence, machine learning, and business support systems.
- Oct 2022Series C$2M
- Oct 2019Series C$10M
- Jul 2017Series C$8.2M
- Jul 2015Series C$9.8M
#3
Acquired · Bedford, Massachusetts · founded 2004 · 11019 employees$83.9Mraised▾
Relational database management system based on postgreSQL. The platform products are suited for transaction-intensive applications. Features include migration, replication, monitoring, backup, and more.
- Jun 2022PE—
- Dec 2014Series D—
- Feb 2011Series D$13.6M
- Aug 2010Series D—
#4
Seed · Boston, Massachusetts · founded 2020 · 12 employees$8.5Mraised▾
Generative AI platform to create and manage synthetic data applications. Its offering includes machine learning models, AI frameworks, and data benchmarks. The platform enables users to protect and enhance AI data. It supports enterprises to generate synthetic data that mimics the real data.
- Aug 2023Seed$8.5M
#5
Series D · Boston, Massachusetts · founded 2009 · 364 employees$163.9Mraised▾
The best data science is open source. Posit is committed to creating incredible open-source tools for individuals, teams, and enterprises.
- Jun 2022Series D$2.6M
- May 2021Series D$161.3M
#6
Solo.io 🦄Series C · Cambridge, Massachusetts · founded 2017 · 33 employees$175.1Mraised▾
Connects applications with APIs and service mesh across any infrastructures. Its products include Gloo, Service Mesh Hub, and Web Assembly Hub. It is a cloud native API Gateway and Ingress Controller built on Envoy Proxy to connect, secure and control traffic across all your application services. The Service Mesh Hub helps organizations streamline the deployment, management, and extensibility of any service mesh on any cloud for any application. Web Assembly Hub extends the Envoy Proxy, Gloo API gateway, and Istio service mesh with a Wasm module in the language of user choice. It claims to provide solutions such as Hybrid applications, Kubernetes Ingress, Microservices, and Service Mesh.
- Oct 2021Series C$135M
- Sep 2020Series B$23M
- Dec 2018Series A$11.3M
- Mar 2018Seed$3.2M
#7
Series B · Boston, Massachusetts · founded 2014 · 52 employees$42Mraised▾
Developer of a cloud-based container development solution for edge computing. It provides an open-source Kubernetes API gateway. Its features include multi-platform support, real-time L7 support, decentralized management, testing friction reduction, and deployments.
- Aug 2022Series B$20M
- Oct 2020Series B$18M
- Nov 2019Series A$4M
- Mar 2015Angel—
#8
Public · Boston, Massachusetts · founded 2000 · 2623 employees$92.3Mraised▾
Provider of cybersecurity solutions for exposure management, threat intelligence, and response. The company offers a platform providing visibility to identify and prioritize exposures. Integration and automation features enable remediation and response to cyber attacks. Services include managed detection and response with monitoring, remediation, and digital forensics.
- Aug 2018Post IPO$200M
- Dec 2014Series C$31M
- Oct 2012Series C$2.1M
- Nov 2011Series C$50M
#9
Acquired · Boston, Massachusetts · founded 2007 · 612 employees$173.5Mraised▾
Provider of a digital experience platform for content, community, and commerce. It offers tools for building and maintaining websites and content. The platform optimizes content for visibility and relevance. It also activates data-driven decisions for customer engagement and personalization across channels.
- Sep 2015Series G$55M
- Aug 2014Series F—
- May 2014Series F$50M
- Nov 2012Series E$30M
#10
Series A · Lawrence, Massachusetts · founded 2015 · 26 employees$5Mraised▾
Provider of a natural language processing platform for speech recognition applications. The platform can be deployed on a desktop computer, automobile, and Raspberry Pi. Developers can also add extra features to the product since it is an open-source product. The company also offers hardware speaker units. The speakers are enabled with its voice assistant platform and can perform functions like answering questions, playing music, controlling IoT devices and more. Its speaker is powered by Xilinx quad-core processor and features a far-field 6-microphone array, dual 2" drivers (10W), 4" IPS LCD touchscreen, Wifi & Bluetooth connectivity and more.
- Jun 2021Series A$120K
- Jan 2019Seed$11.8K
- Mar 2018Seed$1.1M
- Jan 2018Seed$1.8M
#11
Acquired · Cambridge, Massachusetts · founded 2006 · 17 employees$36.1Mraised▾
Provider of data science platform on open stack. It offers an integrated environment for machine learning, data mining, text mining, predictive analytics and business analytics. It enables customers to create a data-analytics workflow and grab data from a variety of sources without scripting using built-in connectors, then process that data to see patterns that might require action. It has applications in business, industrial education, rapid prototyping, application development and supports all steps of the data mining process including results visualization, validation and optimization.
- Nov 2019Grant (prize money)$528.8K
- Jan 2019Grant (prize money)$749.4K
- Dec 2015Series C$16M
- Feb 2015Series B$15.1M
#12
Funding Raised · Burlington, Massachusetts · founded 2005$1.7Mraised▾
OpenNebula is a cloud management solutions provider. The features of the product include data center virtualization management, cloud management, edge, and distributed cloud computing, automatic provision of remote resources, etc. The clients of the company are Akamai, BlackBerry, Telefonica, etc.
- Mar 2022Grant (prize money)$55.7K
- Nov 2019Grant (prize money)$1.7M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Open Source coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising
Common questions
Rohit lives in the feed. He covers what's moving right now — the funding rounds, launches and shifts breaking across the trade press — and ties them back to where the sector is heading.