StackHawk
Denver, US · Delaware corporation · 7 known investors
StackHawk provides an API security tool designed for software development teams to identify and fix security vulnerabilities in real-time as part of their development workflow. The platform targets developers and modern software teams seeking to integrate security checks into continuous integration and deployment practices.
AI & Machine LearningCybersecurityDeveloper ToolsSaaS
Founders & leadership
JK
Joni KlippertCEO, Co-Founder
SG
Scott GerlachinCSO, Co-Founder
BA
Bryce AmbraziunasCo-founder
RS
Ryan SevernsCo-founder
Board
DH
GS
TV
Todd VernonBoard director
Investors · 7
.png)
Reported raises · per SEC filings
Form D private placements$50.2M disclosed across 11 rounds · 2019–2025
▶$14.8MraisedAug 2025 · 24 investors · OtherRule 506(b)
▶$14.8MraisedAug 2025 · 24 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Todd VernonDirector, Promoter
- Joni KlippertExecutive Officer, Director, Promoter
- Greg SandsDirector
- Scott GerlachExecutive Officer, Promoter
- David HartwigDirector
- Bryce AmbraziunasExecutive Officer
- Offering amount
- $15M
- Amount sold
- $14.8M
- First sale
- May 2025
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$4.4KraisedAug 2025 · 1 investors · OtherRule 506(b)
▶$4.4KraisedAug 2025 · 1 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- David HartwigDirector
- Joni KlippertExecutive Officer, Director, Promoter
- Greg SandsDirector
- Bryce AmbraziunasExecutive Officer
- Scott GerlachExecutive Officer, Promoter
- Todd VernonDirector, Promoter
- Offering amount
- $4.4K
- Amount sold
- $4.4K
- First sale
- Jul 2025
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$22.6KraisedNov 2023 · 1 investors · OtherRule 506(b)
▶$22.6KraisedNov 2023 · 1 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Greg SandsDirector
- Todd VernonDirector, Promoter
- Bryce AmbraziunasExecutive Officer
- Joni KlippertExecutive Officer, Director, Promoter
- Scott GerlachExecutive Officer, Promoter
- David HartwigDirector
- Offering amount
- $22.6K
- Amount sold
- $22.6K
- First sale
- Nov 2023
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
▶$29.6KraisedSep 2022 · 1 investors · OtherRule 506(b)
▶$29.6KraisedSep 2022 · 1 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Ryan SevernsExecutive Officer, Promoter
- Greg SandsDirector
- David HartwigDirector
- Joni KlippertExecutive Officer, Director, Promoter
- Todd VernonDirector, Promoter
- Scott GerlachExecutive Officer, Promoter
- Offering amount
- $29.6K
- Amount sold
- $29.6K
- First sale
- Sep 2022
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
▶$20.7MraisedMay 2022 · 19 investors · OtherRule 506(b)
▶$20.7MraisedMay 2022 · 19 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Ryan SevernsExecutive Officer, Promoter
- Joni KlippertExecutive Officer, Director, Promoter
- Scott GerlachExecutive Officer, Promoter
- David HartwigDirector
- Greg SandsDirector
- Todd VernonDirector, Promoter
- Offering amount
- $20.7M
- Amount sold
- $20.7M
- First sale
- Mar 2022
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
▶$16.4KraisedApr 2021 · 1 investors · OtherRule 506(b)
▶$16.4KraisedApr 2021 · 1 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Todd VernonDirector, Promoter
- Greg SandsDirector
- Scott GerlachExecutive Officer, Promoter
- Joni KlippertExecutive Officer, Director, Promoter
- Ryan SevernsExecutive Officer, Promoter
- David HartwigDirector
- Offering amount
- $16.4K
- Amount sold
- $16.4K
- First sale
- Mar 2021
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
▶$10MraisedNov 2020 · 9 investors · OtherRule 506(b)
▶$10MraisedNov 2020 · 9 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Greg SandsDirector
- Scott GerlachExecutive Officer, Promoter
- Joni KlippertExecutive Officer, Director, Promoter
- Todd VernonDirector, Promoter
- Ryan SevernsExecutive Officer, Promoter
- David HartwigDirector
- Offering amount
- $10M
- Amount sold
- $10M
- First sale
- Oct 2020
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
▶$4.8KraisedJul 2020 · 1 investors · OtherRule 506(b)
▶$4.8KraisedJul 2020 · 1 investors · Other
Rule 506(b)Officers, directors & promoters on the filing
- Todd VernonDirector, Promoter
- Joni KlippertExecutive Officer, Director, Promoter
- Scott GerlachExecutive Officer, Promoter
- Ryan SevernsExecutive Officer, Promoter
- Offering amount
- $4.8K
- Amount sold
- $4.8K
- First sale
- Jul 2020
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 10
by search overlapPortSwigger997 shared keywordsPortSwigger develops Burp Suite, a web application security testing toolkit used by security professionals to detect and exploit web vulnerabilities. It also runs the Web Security Academy training platform and publishes web security research and certifications for AppSec practitioners.
Snyk969 shared keywordsSnyk is a developer-focused security platform that identifies and fixes vulnerabilities in code, dependencies, containers, and cloud infrastructure using AI-powered analysis. The company serves organizations of all sizes looking to integrate security into their software development process.
Cloudflare Turnstile937 shared keywordsCloudflare provides a global cloud network platform delivering security, performance, and development services through sixty-plus integrated services including SASE, application security, and full-stack development infrastructure.
Bright Security870 shared keywordsBright Security develops an AI-powered application security platform that automates detection, remediation, and validation of security vulnerabilities integrated into the software development lifecycle. The platform targets development and AppSec teams seeking to accelerate secure software delivery.
Imperva852 shared keywordsImperva provides cybersecurity solutions to protect customers from cyberattacks across applications, data, and identities during digital transformation. The company serves enterprise customers including major financial institutions, telecom providers, and Fortune 100 companies.
Palo Alto Networks808 shared keywordsPalo Alto Networks provides cybersecurity platforms and services to protect organizations' digital infrastructure across cloud, network, and security operations. The company serves enterprise organizations, governments, financial institutions, utilities, and healthcare providers globally.
Netezza702 shared keywordsIBM is a global technology company whose business spans enterprise software (including Red Hat, HashiCorp, and Confluent), IT infrastructure such as mainframes, servers, and storage, and IT consulting services. The company is also investing heavily in quantum computing and AI-based enterprise offerings, including its Lightwell open-source software security clearinghouse and the Anderon quantum wafer foundry.
Check Point Software651 shared keywordsCheck Point Software Technologies is a cybersecurity company providing security products and solutions. This page is its investor relations section, containing annual reports, SEC filings, financial results, and corporate governance information.
Crowdstrike649 shared keywordsCrowdStrike provides an AI-native cybersecurity platform that unifies endpoint, identity, cloud, SaaS, and AI protection to detect and stop breaches for enterprise organizations. It combines automated response with human-led security operations including managed detection and response, threat hunting, and security services.
F5598 shared keywordsF5 develops application delivery and security software and hardware platforms, including BIG-IP load balancers and application firewalls, for enterprise and government networks. The company serves organizations requiring network traffic management, cybersecurity, and application access control.
Companies competing with StackHawk for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Denver, CO Permit Backlog & Processing Times — Updated July 2026 | PermitGrabpermitgrab.com · Jul 2026Frequently asked questions
- What does StackHawk do?
- StackHawk provides an API security tool designed for software development teams to identify and fix security vulnerabilities in real-time as part of their development workflow. The platform targets developers and modern software teams seeking to integrate security checks into continuous integration and deployment practices.
- Who founded StackHawk?
- StackHawk was founded by Joni Klippert, Scott Gerlach, Bryce Ambraziunas, Ryan Severns.
- Who are StackHawk's investors?
- StackHawk's investors include Costanoa Ventures, Flybridge Capital Partners, Foundry, Matchstick Ventures, Sapphire Ventures, Skyview Ventures, Taronga Group.
- How much funding has StackHawk raised?
- StackHawk has disclosed $50.2M raised across 11 rounds.
- Where is StackHawk headquartered?
- StackHawk is headquartered in Denver, US.