Arbitrum Foundation
Arbitrum
Arbitrum Security Program
Arbitrum Foundation subsidizes smart contract audits for projects launching or growing on Arbitrum, paid directly to approved audit firms.
Time left to apply
UTCApplications are reviewed as they arrive. There is no deadline to plan around.
- Grant size
- Size not published
- No published ceiling
- Paid in
- Paid to auditors
- Paid in one go
- Funding model
- Rolling
- Apply any time. Reviewed as applications arrive.
- Typical decision
- 4 weeks
- From submission to an answer
Checked Oct 1 against 2 sources. Confirm amounts and dates on blog.arbitrum.foundation before you apply.
01
About the program
The Arbitrum Security Program pays part of the cost of a third-party smart contract audit for projects building on Arbitrum. It follows the Arbitrum Audit Program, a $10M ARB program that started on Aug 1, 2025 and was reviewed by an audit committee of the Foundation, Offchain Labs and a DAO-elected expert.
You apply through an open form. If you are approved, you confirm your code is ready for audit, agree to subsidy terms, sign a commitment agreement with the Foundation, and are matched with one of 13 approved auditors, including OpenZeppelin, Trail of Bits, Certora, Cyfrin and Nethermind.
The subsidy goes to the auditor, not to you, and its size depends on the commercial agreement reached for each project. The Foundation expects about a month between approval and the start of the audit.
02
What they fund
- Audits for projects that have not launched yet
- Audits for projects migrating to Arbitrum from another chain
- Audits of new features or products from growth-stage projects
- Audits for teams launching their own Arbitrum chain
03
Who can apply
Tick what applies to you. Saved on this device only.
04
How applying works
Apply online
Submit the open application form on Tally.
Confirm readiness
After approval, confirm that your codebase is ready for an audit.
Agree on terms
Agree to the subsidy terms and sign a commitment agreement with the Foundation.
Auditor matching
You are matched with one of the 13 approved audit firms, which the subsidy pays.
05
Sources
Checked on Oct 1 against these pages. Programs change often, so confirm the details on blog.arbitrum.foundation before you apply.
Similar programs
- Horizen Builder Ecosystem FundHorizen Foundation
Up to $150K
USDC
Always open
Apply any time - Lido Ecosystem Grants (LEGO)Lido DAO
Up to $100K
Stablecoins
Always open
Apply any time - Alephium Foundation GrantsAlephium Foundation
Size not published
Not published
Always open
Apply any time