Vannin Chief of Staff is a talent and leadership advisory firm based in Denver, Colorado, specializing in the Chief of Staff role for CEOs, founders, and senior executive teams. Founded in 2020, Vannin focuses on executive search, operating-model strategy, and leadership development.
| Founded | 2020 (6 years) |
| Employees | 6 |
| Headquarters | Denver, United States |
| Trusted networks on Proven | 2 investor, bank and government networks offer Vannin Chief of Staff to their members |
Company facts from Apollo.io company data. Network, offer and redemption data from the Proven platform. A Proven Score is published once publicly named clients are verified with sources.
| Upwork | 79 |
| Toptal | 64 |
| Contra | 38 |
| A.Team | Score in progress |
| Remotely.works | Score in progress |
| Chore | Score in progress |
| 10x Management | Score in progress |
| Right Side Up | Score in progress |
| Athena | Score in progress |
| Folio | Score in progress |
| FlexTeam | Score in progress |
| Go Fractional | Score in progress |
| Squared Away | Score in progress |
| MarketerHire | Score in progress |
| Vannin Chief of Staff | Score in progress |
Source: Proven platform data, public records and vendor websites. Vendors cannot pay to change a score. Methodology. Updated 2026-10-21.