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Socket announced a $40 million Series B on October 22, 2024, led by Abstract Ventures. The company said the round brought its total funding to $65 million. In May 2026, Socket announced a subsequent $60 million Series C at a $1 billion valuation.
Who invested in Socket’s 2024 Series B?
Abstract Ventures led the round. Elad Gil and Andreessen Horowitz also participated, along with angel investors Bret Taylor, Phil Venables, Scott Johnston, Christina Cacioppo, Ann Mather, and Tobias Lütke. Socket said it planned to use the proceeds to expand its engineering, product, and design teams.
At the time, founder and CEO Feross Aboukhadijeh described the company’s approach this way: “We’re not just catching vulnerabilities — we’re detecting and blocking malicious threats in real time.” That is Socket’s characterization of its product, not independent evidence that it detects every threat.
What does Socket’s software do?
Socket’s software is designed to identify risky behavior in open-source packages used by organizations. Its October 2024 announcement cited backdoors, typo-squatting, and obfuscated code as examples of malicious behavior. Socket also said its product supported six programming languages and included license enforcement and reachability analysis.
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TechCrunch’s contemporaneous account described a scanner that checked open-source components for malicious activity and alerted developers when dependencies or packages were added or updated. It also reported optional open-source license checks and integration into developer workflows. These descriptions reflect the product around the time of the Series B, not a complete current feature list.
What happened after the Series B?
| Announcement | Round and lead | Valuation stated | Total funding reported by Socket |
|---|---|---|---|
| October 22, 2024 | $40 million Series B, led by Abstract Ventures | Not stated in Socket’s 2024 announcement | $65 million after the round |
| May 20, 2026 | $60 million Series C, led by Thrive Capital | $1 billion | $125 million after the round |
Socket’s May 2026 announcement also named Andreessen Horowitz, Abstract Ventures, and Capital One Ventures among the Series C investors. It is the latest funding update among the sources available for this article.
How Socket described its product in 2026
In its Series C announcement, Socket said Socket Firewall blocks malicious packages at install time. The company also described reachability analysis for vulnerability triage and Certified Patches for remediation. It said it planned to extend coverage to browser extensions, code editor extensions, MCP servers, and AI tools; those are company-described plans, not a statement that every planned capability was already available.
What scale figures has Socket reported?
The figures below are company-reported snapshots from the respective funding announcements, rather than independently verified or directly comparable measures.
| Announcement | Organizations | Repositories | Attacks blocked |
|---|---|---|---|
| 2024 Series B announcement | More than 7,500 | 300,000 GitHub repositories | Not stated |
| 2026 Series C announcement | More than 27,000 | 1.5 million repositories | More than 10,000 supply-chain attacks each week |
These are figures Socket reported at different times and should not be read as audited outcomes or as proof of product efficacy. The available sources do not establish current pricing, customer contract terms, or independently measured detection performance.
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