Audit firms evaluated across their post-audit exploit record, accountability and reconstructability, method depth, and price transparency.
Certora
#1 of 9 · published ranking
Certora
82ChainChoice Score
4199
Why it leads
Best in the pool on method depth (10/10; next 9/10)
Cost
Not priced· No comparable price is published
No provider can pay for a position in this table. The code that computes this order cannot read which links earn us a commission, and every build proves it. Every score below rebuilds from the published criteria.Ranking 2026.08 · 4 criteria · 9 products · same inputs, same order
Personal comparison
Smart-contract Audits ranked comparison
No comparable price is published; ranking still uses verified product evidence.
RankProviderBest fitScore
1
CertoraCertoraFormal verification with a self-reporte...Top ranked
Formal verification with a self-reported find denominator (Aave)Trade-off: A proof only covers the properties SOMEONE WROTE — spec adequacy is your risk
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
2
ZEZellicStrongest non-EVM bench, published find...
The strongest non-EVM bench here (Rust/Solana, Move/Sui, Cosmos, Cairo, ZK)Trade-off: Acquired Code4rena, which is now winding down — price that precedent into any platfor...
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
Same score, not joint · ordered by weighted total (44.80 against 44.60)
4
Trail of BitsTrail of BitsNamed engineers, engineer-week scoping...
Named engineers committed and disclosed pre-engagement — strongest identity guarantee...Trade-off: Balancer V2 (more than $100M): the issue WAS raised in 2021 and marked “undetermined...
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
5
ImmunefiImmunefiThe only one publishing a fee (10%) — a...
Published 10% fee on bounty payouts — the only published fee in the categoryTrade-off: Bounty programmes carry no named accountable auditor and no report — an incentive, no...
Ranked on 4 published criteria weighted 32/28/24/16, which set goal alignment — 30 of the 86 points. The rest: regional access 20, evidence depth 18, ease of use 10, institutional trust 8. Profile match is shown in breakdowns but carries no weight.
Audit
Infrastructure
Methodology
2026.09.15
published 2026-09-16
Providers tracked
980+
across 119 categories
Last verified
2026-09-14
newest dated pricing or sentiment read
Named on the roster
2 people
managing directors · 6 automated processes
Decision guide
What matters most before choosing in this category
The right audit firm depends on your stack, your deadline, and how much assurance you actually need — but the decisive input is the firm's record on code it has already reviewed. Brand, client logo walls and self-reported 'TVL secured' are not scored here, because a self-reported metric without a denominator is marketing. What is scored is what happened after the review, and whether the engagement can be reconstructed from a published report and a commit-pinned scope.
What matters most before choosing in this category
The right audit firm depends on your stack, your deadline, and how much assurance you actually need — but the decisive input is the firm's record on code it has already reviewed. Brand, client logo walls and self-reported 'TVL secured' are not scored here, because a self-reported metric without a denominator is marketing. What is scored is what happened after the review, and whether the engagement can be reconstructed from a published report and a commit-pinned scope.
Which language and execution environment is your codebase in, and does the firm have a bench for it?
Do you need a published report, or is a private review acceptable to your stakeholders?
How much of your deadline can absorb a formal-verification engagement rather than a review?
Default starting point
Expert review and scoring weights
Certora
CertoraData checked Sep 2026
Formal verification with a self-reported denominator — and self-incriminating post-mortems
Certora verifies bytecode against written correctness specs, and it publishes post-mortems incriminating itself (Silo, Balancer) plus a denominator on its own blog: across its Aave engagement it reviewed 169 contracts and 51,289 lines of Solidity and prevented 28 significant bugs. It is also the only one with a genuine free tier (2,000 Prover minutes a month, write your own rules). The limit is structural and the buyer owns it: a proof only covers the properties you wrote. On Balancer, Certora’s verified properties “were not strong enough to detect the rounding error” later exploited; on Silo, its own report says “We made a mistake” and that the exploited vulnerability “was not identified during that review”.
Best forFormal verification with a self-reported find denominator (Aave)
Main tradeoffA proof only covers the properties SOMEONE WROTE — spec adequacy is your risk
Verify before signupGet the COVERED-CONTRACT LIST and the verified properties in writing — on Balancer the verified properties did not reach the rounding error that was exploited.
Methodology
How this category is reviewed
Reviewed on the post-audit exploit record, accountability and reconstructability, method depth for your stack, and price transparency. Brand and “TVL secured” are never scored.
The order on this page is the published ranking for this category. Every criterion, weight and source behind it is on the methodology page.
Frequently asked
Questions people ask before choosing smart-contract audits
Does a passed audit mean the code is safe?
No. An audit is a time-boxed review of a specific commit, not a guarantee, and every major firm in this pool has had reviewed code exploited afterwards. What separates them is whether they disclose it — a firm that publishes its own misses is easier to trust than one that publishes none.
Why is price the lightest criterion?
Because almost every firm here is quote-only, so there is no comparable price to rank. What is scorable is disclosure: whether a buyer can form any cost expectation before entering a sales process.
What matters most when picking an audit firm?
The post-audit exploit record and whether the engagement is reconstructable — together 60% of the weight. Method depth for your specific stack follows, and price transparency is scored on disclosure rather than level.
Not financial advice · For informational purposes only · Always do your own research
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