SMART CONTRACT AUDITS · HEAD TO HEAD

Quartzlab Auditing vs Sparrow & Co.

Q: Quartzlab Auditing or Sparrow & Co.?

Both are vetted Smart Contract Audits providers on Onyx. Quartzlab Auditing rates 4.7 out of 5 across 42 reviews, Sparrow & Co. rates 4.8 across 18. Match the specialties to your need.

Q: Are both providers vetted by Onyx?

Yes. Both passed Onyx provider vetting. Listing reflects vetting, not payment, and a commission is earned only on a closed engagement.

Side by side

Rating

4.7/5

4.8/5

Reviews

42

18

Response time

< 24h

Lead time

2–4 weeks

2–3 weeks

Team size

18

3

Past mandates

94

38

Vetted since

Mar 14, 2025

Apr 22, 2025

Quartzlab Auditing specialties

SolidityMiCA-awareToken issuanceLending

Sparrow & Co. specialties

SolidityDEXDeFi primitivesNFT

FAQ

Quartzlab Auditing or Sparrow & Co.?

Both are vetted Smart Contract Audits providers on Onyx. Quartzlab Auditing rates 4.7 out of 5 across 42 reviews, Sparrow & Co. rates 4.8 across 18. Match the specialties to your need.

Are both providers vetted by Onyx?

Yes. Both passed Onyx provider vetting. Listing reflects vetting, not payment, and a commission is earned only on a closed engagement.