Some links on this page are affiliate links: if you buy through them we may earn a commission, at no extra cost to you.
VulnCheck announced a $12 million Series A on March 18, 2025, led by Ten Eleven Ventures, with existing investors Sorenson Capital and In-Q-Tel also participating. The company said the round brought its funding to nearly $20 million and would support international expansion, product development, and go-to-market growth. It later announced a $25 million Series B in February 2026, so the Series A is a financing milestone—not its latest round.
What VulnCheck raised and who invested
Lexington, Massachusetts-based VulnCheck announced the $12 million Series A on March 18, 2025. Ten Eleven Ventures led the round; Sorenson Capital and In-Q-Tel, both existing investors, also took part. VulnCheck said its total funding after the round was nearly $20 million. The company identified international expansion, platform development, and go-to-market growth as uses for the proceeds. VulnCheck’s Series A announcement
The Series A followed a $3.2 million seed round announced in February 2023. Sorenson Ventures led that financing, with participation from In-Q-Tel, Lux Capital, and Aviso Ventures. VulnCheck’s seed announcement
Free tools Windows power users keep installed
One-click scans. No signup required.
What VulnCheck sells
VulnCheck sells cyber-threat intelligence, with a focus on vulnerabilities, exploits, and related attack context. Its platform is designed to help organizations decide which vulnerabilities deserve attention first and to deliver that intelligence into existing security products and workflows. That makes it an intelligence and prioritization layer, not simply another vulnerability scanner.
#1 Best Overall
The company’s documentation describes four commercially licensed areas: Exploit and Vulnerability Intelligence, Initial Access Intelligence, Canary Intelligence, and Target Intelligence. Its free Community offerings include VulnCheck KEV, NVD++, XDB, and Report a Vulnerability. It also offers SDKs and a command-line interface, including Go and Python tooling. VulnCheck product documentation
Why exploit intelligence matters to vulnerability teams
Security teams can face more disclosed vulnerabilities than they can investigate and remediate at once. A CVE count alone does not tell a team which issue presents the most immediate risk to its own systems. VulnCheck’s pitch is to help prioritize using evidence such as exploit availability, observed attack activity, timelines, and exposure context rather than treating every vulnerability as equally urgent.
That work often means correlating information across sources such as the NIST National Vulnerability Database, CVE records, and CISA’s Known Exploited Vulnerabilities catalog. VulnCheck says its platform automates this kind of correlation and makes the results available in machine-readable form for use in security tools. The company’s documentation describes enrichment and prioritization, not a substitute for asset discovery, authenticated scanning, patch deployment, or remediation tracking. Exploit and Vulnerability Intelligence documentation
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchWindows Errors? Fix Them Before They Spread
Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstallWhat the company reported about its data and growth
In its March 2025 announcement, VulnCheck said it drew on nearly 500 information channels, held more than 400 million records across CVEs, and refreshed its feed every eight hours. Those are company-reported figures, not independently audited measurements. The company also said nearly 7,000 businesses and organizations worldwide used its offerings at the time.
Rank #3
VulnCheck reported that, in the year preceding the Series A, annual recurring revenue grew threefold, customer count increased 158%, and customer retention was 100%. These operating metrics were supplied by the company; the announcement does not establish an independent verification of them. Series A announcement and company-reported metrics
How the product has expanded since the Series A
Later product materials describe capabilities beyond the vulnerability-intelligence positioning emphasized in 2025. Initial Access Intelligence includes exploit proof-of-concept code, packet captures, and Suricata signatures; Canary Intelligence draws on internet sensors; and Target Intelligence can help identify vulnerable internet-exposed hosts for a supplied CVE. These are descriptions of the later platform and should not be read as a list of features necessarily available or mature when the Series A was announced. Current product overview
In its February 2026 financing announcement, VulnCheck said more than 13,000 cybersecurity vendors, practitioners, and vulnerability-management teams had access to its Community products VulnCheck KEV and NVD++. That later access figure uses a different description and date from the nearly 7,000 organizations cited in 2025; the two should not be treated as directly comparable customer counts. Series B announcement
Recommended Free Tools
The Series B is the latest financing milestone
On February 17, 2026, VulnCheck announced a $25 million Series B led by Sorenson Capital. The company reported that the round brought total funding to $45 million. The Series A remains a $12 million round announced in March 2025, but it is no longer the company’s latest financing. VulnCheck’s Series B announcement
Best Value
Who might use VulnCheck—and what it does not replace
VulnCheck may be relevant to organizations that already collect vulnerability findings but need better exploit context, or to cybersecurity vendors that want to incorporate vulnerability intelligence into their own products. Its potential buyers include vulnerability-management teams, security operations and incident-response teams, government organizations, and product-security teams.
- It can help answer: Which vulnerabilities have exploit evidence or observed attack activity, and how can that intelligence reach existing workflows?
- It does not, on the available product description, replace: a reliable asset inventory, authenticated scanning, configuration assessment, patch deployment, or remediation tracking.
- Its usefulness depends on: whether the organization can connect machine-readable intelligence to its tools and act on the resulting priorities.
- Evidence still needs interpretation: exploit code or exploitation telemetry does not by itself prove that a particular customer asset is vulnerable or exploitable.
For teams that only need a public list of vulnerabilities known to be exploited, CISA’s KEV catalog is a narrower government-maintained resource. NIST’s NVD is a free public database and an important source of vulnerability metadata. A dedicated intelligence platform may offer broader enrichment and workflow integration, while a full vulnerability-management suite may be a better match for buyers seeking asset discovery, scanning, risk dashboards, and remediation workflows together.
Access and pricing context
VulnCheck lists its Community products as free and distinguishes them from commercially licensed platform offerings; the free tier should not be assumed to include the full commercial platform. The company presents a demo request as an enterprise route. Its AWS Marketplace listing showed a 12-month Exploit and Vulnerability Intelligence contract at $259,200 when crawled, with price depending on contract duration and vendor terms. That listing is a dated price signal, not a universal list price or a quote for every customer. Community and commercial offerings · VulnCheck website · AWS Marketplace listing
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
