Halborn
Halborn is a blockchain security firm founded in 2019 by Rob Behnke and Steven Walbroehl, based in Miami, Florida. The company specializes in providing security solutions for the Web3 and blockchain industries. Halborn became profitable from the start and secured $90 million in Series A funding in 2022 to support its growth and product development. The company offers a range of security services, including smart contract audits, penetration testing, code reviews, security advisory, and DevOps automation. Halborn is also developing a pipeline of SaaS security products aimed at enhancing the security of blockchain organizations. With a client base of over 250 organizations, Halborn serves various clients, including the Solana Foundation, Avalanche, and financial institutions, establishing a strong presence in the Web3 security sector.
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Headcount trend
Halborn went from 38 employees in Jul 2023 to 52 in Jun 2025. Jan to Jun 2025: 8 people joined, 5 left.
Headcount data through Jun 2025
Org structure
Headcount by department
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Funding
- Jul 2022 · Series A · $90M · Summit Partners, Castle Island Ventures, Digital Currency Group
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Halborn FAQ
How many employees does Halborn have?
Halborn has about 52 employees, up 4% over the 3 months to Jun 2025.
Does Halborn sponsor H1B visas?
Yes. Halborn filed 1 H1B (LCA) application in FY2024, according to the latest U.S. Department of Labor disclosures. It was for a HR role.
What is Halborn's revenue per employee?
Halborn makes about $171K in revenue per employee, based on $8.9M annual revenue and 52 employees.
How much funding has Halborn raised?
Halborn has raised $90M in total funding; its latest round was Series A in Jul 2022.
Data from Company Prospectus, DOL LCA disclosures, WARN notices and 6figr salary profiles.