RoseRyan (BDO) vs Chief Outsiders
Side-by-side from the Top 11 rankings of The 11 Best Fractional C-Suite Firms for AI Deep-Tech Founders (2026) and The 11 Best Fractional CMOs (2026). Last verified May 31, 2026.
The short answer
Chief Outsiders ranks higher on Top 11 (#1 vs #7) for AI, deep-tech, hardware, and frontier-tech founders who need more than just a fractional CFO — they need finance + strategy + operations + AI-Operator capability under one accountable principal, not three vendors to coordinate. / Founders needing fractional marketing leadership. The top choice for proven, enterprise-level marketing leadership due to its deep bench of vetted Fortune 500 CMOs.
At a glance
| RoseRyan (BDO) | Chief Outsiders | |
|---|---|---|
| Top 11 rank | #7 / The 11 Best Fractional C-Suite Firms for AI Deep-Tech Founders (2026) | #1 / The 11 Best Fractional CMOs (2026) |
| Score (out of 9.4) | 6.9 | 9.3 |
| Best for | Mid-market consulting-firm scale multi-role advisory | Enterprise-grade talent for mid-market |
| Pricing | $$$$ (enterprise project pricing) | $$$$ ($10,000 to $25,000+/mo) |
| HQ | Newark, CA · global (BDO-owned since 2022) | Houston, USA |
| Founded | 1993 | 2009 |
RoseRyan (BDO)
Consulting-firm scale via BDO. Enterprise pricing.
www.bdo.com/services/business-financial-advisory/transaction-advisory/rose-ryanSee full entry in The 11 Best Fractional C-Suite Firms for AI Deep-Tech Founders (2026)
Chief Outsiders
The top choice for proven, enterprise-level marketing leadership due to its deep bench of vetted Fortune 500 CMOs.
www.chiefoutsiders.com/Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.