Official Audits

[BigBrother]

[Philip Okugbe]

I'll recommend BokkyPooBah.
He has audited tons of smart-contracts and he's an expert in the field.
https://www.bokconsulting.com.au
https://github.com/bokkypoobah

[Marcus Mönnig]

I propose: https://zeppelin.solutions/

:-)

[Arseniy Ivanov]

@JonathonDunford quotes & terms, previous experience, summary on the proposed reviewers, please.