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Tidelift

Other B2B Software · Boston, United States · Founded 2017

Tidelift operates as a managed open source subscription service, providing enterprises with a streamlined approach to handling the complexities of open source software. The company was founded in 2017 by Donald Fischer, Havoc Pennington, Jeremy Katz, and Luis Villa, a team with extensive backgrounds in open source from organizations like Red Hat, the Wikimedia Foundation, and the Mozilla Foundation. This collective experience shaped Tidelift's core mission: to create a viable economic model for open source maintenance, ensuring the software that underpins countless applications remains secure and reliable. The business model is centered on a subscription service sold to enterprise clients. These clients pay a recurring fee, which grants them access to a curated catalog of vetted open source components. This catalog provides assurances around security, licensing, and maintenance, directly addressing major pain points for organizations that rely heavily on open source. A significant portion of this subscription revenue, with a commitment of at least 50%, is then paid out to the independent developers and maintainers of these open source projects. Payments to these 'lifters' are determined by factors like subscriber usage and the strategic importance of their packages, creating a direct financial incentive for them to adhere to secure development practices. The Tidelift Subscription offers a suite of tools that allow development teams to manage their software supply chain effectively. Key features include the ability to create customizable catalogs of approved components, monitor for security vulnerabilities and licensing issues, and receive recommendations for package updates. The platform integrates with a client's existing systems, analyzing their software bills of materials (SBOMs) to track dependencies and report on compliance and violations. This provides organizations with continuously updated data and attestations needed for compliance with standards like the NIST Secure Software Development Framework. Tidelift serves a diverse clientele, including prominent names like Cisco, Fannie Mae, and the U.S. Air Force. In late 2024, it was announced that Sonar had signed a definitive agreement to acquire Tidelift, with plans to extend its code quality and security coverage to open source libraries. Keywords: open source management, software supply chain, security assurance, developer tools, license compliance, managed open source, vulnerability management, maintainer compensation, enterprise software, dependency tracking

Valuation $100–500M
Revenue $1–10M
Headcount <100
Total funding $50–100M
Unlock exact values This page shows ranges. Dealroom has the exact numbers for Tidelift and the history behind them.

Investors

7 investors on Tidelift's cap table

Sourced from Dealroom's funding history. Investor profile links are shown where available.

Series A 2 investors entered at this stage
Series B+ 5 investors entered at this stage
Dorilton Capital
Atlassian Ventures
Kaiser Permanente
Cisco Investments
AEI HorizonX

Global footprint

Where Tidelift has talent and traffic

Workforce by country
3 countries with
team presence
🇺🇸 United States71.4%
🇧🇩 Bangladesh14.3%
🇬🇧 United Kingdom14.3%
3 countries shown

Talent graph

The shape of Tidelift's talent

Dealroom maps Tidelift's team person by person — pinpointing the standout operators and scoring them across the six dimensions investors underwrite. The counts and shape below are a public preview; the named individuals and exact scores live in the platform.

10 team members profilednamed & role-tagged by Dealroom
11 employeestotal headcount
3 executives & foundersidentified by name
DimensionScore
AI Talent Score hidden — book a demo
Engineering Score hidden — book a demo
Product Score hidden — book a demo
Go-to-market Score hidden — book a demo
Leadership Score hidden — book a demo
Research Score hidden — book a demo
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Source: Dealroom Talent Intelligence. Public profiles show counts and the team's shape only — request a demo for the named individuals, per-person seniority and tenure, and team benchmarks vs peers.

Market sentiment

What the market is saying about Tidelift

An AI-synthesized read of the highest-engagement posts about Tidelift on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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