HOLOCLEAR is written in Vyper so we sought an audit company with significant experience in this language. Ourovoros (https://ourovoros.io/) were highly recommended by the Vyper development community and we were impressed by the thoroughness of their approach.
The audit was conducted by Angelos Apostolidis and reviewed by Sheraz Arshad, both with considerable experience (more than 300 audits). Their contact details are on the report should you wish for any further information.
Full audit available here: