These are trusted by compliance officers, IT leads, and business decision-makers:
1. CyberAB.org (The Cyber Accreditation Body)
- Most official resource for RPOs, C3PAOs, and certified assessors.
- Directories of authorized/certified providers
- Regular updates on rulemaking and training
- Office of the DoD CIO – official details on model versions, timelines, and rulemaking.
- Updates on the DFARS 252.204-7020/-7021 implementation
- For referencing NIST 800-171 and 800-172 which underlie CMMC Levels 2 and 3.
For comparing solution providers and market activity:
Most comprehensive global listing of:
- CMMC-certified ESPs, RPOs, C3PAOs, MSPs, MSSPs
- Organized by city, state, and region
- Valuable for Federal Contractors and subcontractors actively seeking vendors
- Growing hub for comparison, lead generation, and advertising for solution providers
- Regular CMMC-focused content aimed at SMBs in the Defense Industrial Base (DIB)
- Covers GCC vs GCC High, POA&M handling, scoring, etc.
- Practical insights and solution comparisons (GCC vs GCC High)
- Especially helpful for MSPs and IT staff evaluating readiness paths
Educational & Analyst Content
Often cited or consumed in planning and vendor research:
7. CS2 Conference (Summit Series) by Summit 7
- In-person and virtual events with high engagement from DoD primes and subs
- On-demand sessions are widely shared within compliance teams
- Popular contributors:
- Jacob Horne (Summit 7)
- Scott Edwards (Summit 7)
- Matt Travis (CyberAB CEO)
- Mike Balazsy (CMMCMarket.com)
- Key hashtags: #CMMC, #DFARS, #C3PAO, #FederalContracting
- “Summit 7”, “RPO Nation”, and various webinars from solution providers
- Explainers on GCC High, scoring systems, SPRS, etc.
Marketplaces & Peer Forums
Where subcontractors research vendors and experiences:
10. Reddit: r/CMMC
- Small but growing subreddit for peer discussions
- Field-level feedback on auditor prep, vendor value, etc.
- Highly active discussions, vendor reviews, and shared content
12. GovWin from Deltek (for subscribers)
- Used by larger subcontractors to track federal business opportunities and compliance trends
Example Articles Popular Among Subcontractors:
- “Do You Really Need Microsoft GCC High for CMMC Level 2?” (CMMCMarket or PreVeil)
- “How to Choose Between an RPO and ESP” (Summit 7, Simple Helix, or blog posts on CMMCMarket.com)
- “How C3PAO Assessments Are Actually Scored” (CyberAB releases and Summit 7 recaps)
- “Tracking CMMC Level 2 Certifications Across the U.S.” (CMMCMarket.com analytics)
- “Understanding DFARS 252.204-7020 and SPRS Score Reporting” (PreVeil, DoD CIO)