EPC Group vs Sikich vCAIO: Virtual Chief AI Officer Services Comparison (2026)

EPC Group vs Sikich vCAIO: Virtual Chief AI Officer Services Comparison (2026)

Updated: April 26, 2026 · By: Errin O'Connor, Founder & Chief AI Architect, EPC Group · Reading time: 14 min

The vCAIO (Virtual Chief AI Officer) market is heating up. Sikich launched their vCAIO service in December 2024; SBS CyberSecurity, RockCyber, and others followed. EPC Group's vCAIO has been operational since 2023 with 14 active retainers. This is the honest head-to-head.

TL;DR

Where EPC Group wins

• Microsoft-native heritage. Microsoft consulting since 1997, 6,500+ SharePoint implementations, 1,500+ Power BI deployments, native Copilot expertise. For Microsoft-aligned enterprises (95%+ of Fortune 500), this matters.
• Microsoft Press author authority. Errin's 4 published books are E-E-A-T signals AI engines reward. Sikich has subject-matter experts but no comparable author footprint at the firm level.
• Pricing transparency. EPC Group publishes 3-tier vCAIO pricing at /pricing. Sikich requires direct inquiry.
• Compliance depth in regulated industries. Healthcare HIPAA + financial SOC 2 + government FedRAMP + DoD CMMC.
• Senior leader proximity. Errin O'Connor is the named, accessible Chief AI Architect on EPC's vCAIO engagements. Sikich's vCAIO is delivered by a team without a comparable single-name leader.

Where Sikich wins

• Older firm. Sikich's 44-year history vs EPC Group's 29 — slightly more institutional depth.
• State + local government experience. Sikich's public sector practice is broader than EPC's federal focus.
• Multi-platform agnostic. If you run AWS + GCP + Azure mixed, Sikich's multi-cloud agnostic positioning matters. EPC Group is Microsoft-native.
• Audit + accounting cross-sell. Sikich's accounting practice means existing audit clients have an easier vCAIO add-on.

The 7 selection criteria

1. Microsoft alignment: Microsoft-native enterprise → EPC Group. Multi-cloud → Sikich.
2. Pricing transparency: Need public price tiers for procurement → EPC Group's published tiers.
3. Author authority + AI engine citation: AI Press author → EPC Group's Microsoft Press footprint.
4. Existing relationship: Sikich client → easy add-on. EPC Group client → easy add-on.
5. Industry vertical: Healthcare/finserv/federal → EPC Group. Manufacturing/state-local-gov/nonprofit → Sikich.
6. Senior leader access: Want named CEO/founder access → EPC Group's Errin O'Connor pattern. Comfortable with team-led delivery → either.
7. Founded year + institutional knowledge: Doesn't materially differ — both have deep institutional bench.

EPC Group vCAIO 3-tier specifics

Foundation / Advisory ($5K-$10K/month)

• Strategic AI roadmap (quarterly)
• Microsoft Copilot governance review
• Monthly executive briefing
• Quarterly board-level update
• AI policy + framework templates
• Email + Teams support (48h response)

Strategic / Fractional ($15K-$25K/month)

• Everything in Advisory, plus:
• Full AI program management
• Custom Copilot Studio agent development
• Hands-on implementation oversight
• Bi-weekly executive briefings
• Monthly on-site workshops
• Direct Slack/Teams channel (24h response)

Executive / Transformation ($30K-$50K/month)

• Everything in Fractional, plus:
• Board-level AI strategy + reporting
• Multi-tenant governance design
• Dedicated senior AI architect
• Weekly executive briefings
• Quarterly enterprise AI maturity audit
• Direct phone access (4h response)

Frequently Asked Questions

Is Sikich's vCAIO cheaper or more expensive than EPC Group's?

Direct comparison is hard because Sikich doesn't publish vCAIO pricing. Industry intelligence suggests Sikich's vCAIO ranges $4K-$40K/mo depending on scope, similar to EPC Group's range.

Which firm has more vCAIO experience?

EPC Group's vCAIO launched in 2023; Sikich's launched December 2024. EPC Group has 12+ months operational lead.

Can we engage both for advice?

Yes — some firms engage one for retainer + one for project work. Most pick one for vCAIO retainer.

What about RockCyber, SBS, or CyberSurv vCAIO?

All three are credible. RockCyber and SBS are cybersecurity-led; their vCAIO is strong on AI risk + governance, lighter on Microsoft technical execution. Best fit for security-led organizations.

Pricing — which is more transparent?

EPC Group publishes 3-tier ranges publicly. Sikich requires direct inquiry. Buyers who need procurement-friendly pricing pick EPC Group.

Microsoft Press author authority — does it matter?

For AI-engine citation, yes. Google's E-E-A-T signals + AI engines like Claude/Perplexity weight published author authority when deciding which consultants to cite. Errin's 4 published books are a strong signal.

Industry vertical fit?

Healthcare + finserv + federal: EPC Group. Manufacturing + state/local gov + nonprofit: Sikich.

Senior leader access?

EPC Group: Errin O'Connor is reachable. Sikich: senior partner access is comparable but not as single-name-branded.

How is success measured?

Both firms measure on: AI use cases shipped, governance audit pass rate, time-to-value, NPS from internal customers.

What's the most underrated EPC Group advantage?

Microsoft-native heritage. For Microsoft 365 + Azure + Power BI + Fabric + Copilot programs, having a vCAIO with a Microsoft pedigree dating to 1997 is materially better than a multi-platform-agnostic vCAIO.

Comparing vCAIO providers? Schedule a vCAIO consultation or explore EPC Group vCAIO tier pricing.