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Cobalt

https://cobalt.io. External link for Cobalt. Industry: Computer and Network Security. Company size: 201-500 employees. Headquarters: San Francisco, California.
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Last verified 2 months ago
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kustiq.com/company/cobalt.io · cite this page

https://cobalt.io. External link for Cobalt. Industry: Computer and Network Security. Company size: 201-500 employees. Headquarters: San Francisco, California.

Employees

201-500

Location

San Francisco, California

Funding

Series B ($29M)

Tech Stack

Cloudflare

G2 Category

Software Company

AI Classification

CybersecuritySecurity Consulting

Cobalt is an offensive security platform company pioneering Penetration Testing as a Service (PTaaS), offering on-demand web, API, AI/LLM, network, and cloud pentesting alongside red teaming, attack surface management, and secure code review to SMB and enterprise security teams.

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Tech Stack

CDN

Cloudflare

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Social Links

Linkedin

Cobalt is one of 2,676 B2B companies in the Kustiq directory.

Cobalt sits among 14 security consulting companies in our Cybersecurity directory.

Similar profiles: Hackthebox, Gorgias, Clay, and Airbase.

Both sit in the 201-500 headcount band, and both are at Series B. See Cobalt vs Hackthebox side by side.

Both sit in the 201-500 headcount band, and Gorgias is at Series C ($29M) versus Series B for Cobalt. See Cobalt vs Gorgias side by side.

Both sit in the 201-500 headcount band. See Cobalt vs Clay side by side.

Segment benchmark

How Cobalt compares with other Security Consulting companies

Cobalt is one of 14 Security Consulting companies profiled in the Kustiq Cybersecurity directory, which holds 72 Cybersecurity companies in total. Every number below is computed from those profiles.

Cobalt sits in the 201-500 headcount band. 50% of the 10 segment peers with a known team size are smaller. 30% of those peers share the same band.

The most common tech detections across the 5 peers with a visible stack are Cloudflare (60%), WordPress (40%), and Recaptcha (20%). Cobalt runs Cloudflare.

Among the 8 segment companies with disclosed funding, Growth is the most common stage (38%). Cobalt is at Series B.

Benchmarks are recomputed from live directory data, so they move as profiles refresh. Counts cover Kustiq-profiled companies, not the whole market.

How Kustiq built this profile

How this profile was built

  • Live web rendering via Browserless headless Chrome, not a stale cached scrape.
  • Search intelligence via Serper API across the company site, LinkedIn, press, and GitHub.
  • Claude only picks the buckets. It never decides facts.
  • 12-factor churn engine. Deterministic score, zero LLM at scoring time.
  • SMTP RCPT TO handshake on every contact, at delivery time on full profiles (paid plan).

This profile was built from 1 rendered page of cobalt.io and search coverage across the live web on .

Read the full methodology in our LLM-readable reference or compare against the deterministic-vs-AI framework.

Frequently asked questions

How many employees does Cobalt have?
Cobalt has 201-500 employees, based on public sources read at the last profile run. That makes it larger than 50% of the 10 profiled Security Consulting peers with a known team size.
What industry is Cobalt in?
Cobalt is a Cybersecurity company in the Security Consulting segment.
Where is Cobalt headquartered?
Cobalt is headquartered in San Francisco, California.
Is this profile actually verified, or just generated by AI?
The structured fields come from a hybrid pipeline. Facts (location, employee range, funding, tech stack) come from live web rendering plus Serper search across the company site, LinkedIn, press, and GitHub. Claude only picks the buckets: vertical, segment, growth signal. It never decides facts. Contact emails on full profiles pass an SMTP RCPT TO handshake at delivery time.
How is this different from a contact database?
Kustiq profiles one company at a time, live from the web when you ask. Tools like Apollo and ZoomInfo rent access to a 50M+ row pool that ages every quarter. Different shape, different price, and the freshness story is the opposite.
What does "track this profile" do?
Tracking saves Cobalt to your free dashboard so you can re-run the full pipeline on it anytime. Free with a signed-in account: 3 profiles a week, no card.
Can the profiled company remove this page?
Any company in the Kustiq directory can request removal at /trust#removal. Removed profiles return 410 Gone and stay out of search.
How fresh is the data?
Cobalt was last verified 2 months ago. The data refreshes when anyone re-runs the profile (the Re-run now button above does exactly that), and we run the SMTP handshake on contacts when you ask for them, not when we cached the row. The freshness card above the profile shows the exact relative date for the current visit.
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