EPC Group vs Deloitte — Microsoft Consulting Comparison for Mid-Enterprise & Fortune 500 Buyers
Both firms deliver Microsoft consulting at enterprise scale. The choice between them is a firm-type + delivery-model question — with an auditor-independence overlay if Deloitte is already the buyer's external audit firm.
Firm type
EPC Group is a Microsoft-native consulting specialist. 29 years of continuous Microsoft consulting, all six current Microsoft Solutions Partner Designations, founder is a bestselling Microsoft technology author (Microsoft Press and Sams/Pearson) and was on the original SharePoint (Project Tahoe) and Power BI (Project Crescent) beta teams. The entire bench is Microsoft-focused.
Deloitte is a Big 4 professional services firm — the largest of the four by revenue — with a Microsoft consulting practice sitting alongside audit, tax, financial advisory, risk & regulatory, actuarial services, strategy consulting, and technology consulting across every major cloud and enterprise platform. Buyers engage Deloitte for the multi-service-line breadth + audit-adjacent credibility as much as for Microsoft technology depth specifically.
Delivery model
EPC Group runs a senior-architect-led delivery model. The same 20+ year Microsoft veteran who scopes the engagement designs and hands off to a lean implementation crew. The named architect is in the room the entire engagement.
Deloitte runs a partner-plus-many-consultants delivery model. A senior partner scopes the engagement; a larger crew of managers, senior consultants, consultants, and analysts implements. Deloitte's model scales to Fortune 100 multi-year transformation programs where 100+ concurrent consultants are the norm.
Pricing
EPC Group publishes fixed-fee accelerator prices: $15,000 Copilot Readiness Assessment, $25,000 Power BI Quick-Start, $25,000 Microsoft 365 Security Hardening, $35,000 SharePoint Migration Accelerator, $40,000 Azure Landing Zone, $75,000 AI Governance Framework, plus a $6,500-$35,000/month Managed Microsoft Services retainer. Larger enterprise programs are scoped after discovery. EPC Group does not publish hourly rates.
Deloitte is predominantly time-and-materials or large blocked-fee statements of work at Big-4-consulting rate cards. Fortune 100 Deloitte engagements frequently reach seven and eight figures. Mid-enterprise Deloitte workstreams typically start in the mid-six figures. For a bounded outcome, EPC Group's fixed fee is dramatically more predictable and lower-cost. For a Fortune 100 multi-year transformation with audit-adjacent oversight, Deloitte's model matches the shape of the work.
Auditor-independence considerations
This is a real procurement consideration. If Deloitte is the buyer's external audit firm, adding Deloitte for Microsoft consulting can create SEC and PCAOB independence review issues — particularly around any consulting work that touches financial reporting systems, internal controls over financial reporting (ICFR), or SOX-scoped applications. Public-company audit committees and General Counsel typically require pre-approval and independence analysis before adding non-audit services from the audit firm, and some scopes are simply prohibited.
If independence is a concern, EPC Group is one of the specialist alternatives Big 4 audit clients frequently engage for Microsoft-heavy consulting scopes precisely to avoid the independence question. EPC Group has no audit or attest practice, so independence is not implicated.
Sector specialization
EPC Group runs the compliance patterns as the default posture: HIPAA, SOC 2, FedRAMP, CJIS, StateRAMP, FINRA, SEC Rule 17a-4, CMMC 2.0, FDA 21 CFR Part 11, GxP, NERC CIP, FERPA. 70+ Fortune 500 clients concentrated in regulated verticals.
Deloitte covers all these verticals globally with specialist practices in each, plus deep sector expertise from the audit and risk advisory side (Deloitte is one of the largest audit firms globally). Deloitte's sector strength comes from the CPA-firm-plus-consulting model — combined finance + risk + technology delivery.
When to pick each
Pick Deloitte if:
- Fortune 100 multi-year transformation program spanning Microsoft + SAP + Salesforce + Oracle where cross-platform integration and single-vendor accountability are procurement requirements.
- The engagement requires audit-adjacent credibility for board or SEC oversight.
- The buyer values Big 4 brand recognition for board or shareholder communications.
- Existing Deloitte relationships (audit + tax + advisory) make adding Microsoft consulting to that relationship preferred to standing up a second vendor.
Pick EPC Group if:
- You want the deepest Microsoft-only ecosystem bench — 29 years, all six Solutions Partner Designations, Microsoft Press author leadership.
- You want published fixed-fee accelerator prices for bounded outcomes at a fraction of Big 4 pricing.
- You want a senior architect on the whiteboard the entire engagement, not levels removed from a Big 4 partner.
- You are a Deloitte audit client and adding Deloitte consulting creates SEC / PCAOB independence review issues.
- You want a firm with 11,000+ enterprise engagements, 216+ M&A tenant migrations, and North America's oldest continuous Microsoft Gold Partner heritage — without paying for Big-4-brand overhead.
Frequently Asked Questions
What is the fundamental firm-type difference between EPC Group and Deloitte?
EPC Group is a Microsoft-native consulting specialist — 29 years of continuous Microsoft ecosystem consulting, all six current Microsoft Solutions Partner Designations, founder is a bestselling Microsoft technology author. Deloitte is a Big 4 professional services firm — the largest of the four by revenue — with a Microsoft consulting practice sitting alongside audit, tax, financial advisory, risk & regulatory, actuarial, strategy consulting, and technology consulting across every major cloud and enterprise platform (SAP, Oracle, Salesforce, Workday, ServiceNow, AWS, GCP, Microsoft, and more). Buying Deloitte for Microsoft is buying access to a very large multi-service-line firm with brand and audit-adjacent credibility; buying EPC Group is buying the deepest Microsoft-only bench.
On Microsoft ecosystem depth, what is the practical difference?
EPC Group is 100% Microsoft-focused: 6,500+ SharePoint implementations, 1,500+ Power BI deployments, 500+ Microsoft Fabric implementations, original SharePoint (Project Tahoe) and Power BI (Project Crescent) beta team involvement as founder, all six current Microsoft Solutions Partner Designations. Deloitte has a substantial Microsoft practice with named leaders and Fortune 100 references, but that practice is one of many technology practices under the larger consulting umbrella. For buyers evaluating Microsoft-ecosystem-depth as the top criterion, EPC Group is the specialist. For buyers evaluating brand + multi-service-line integration + audit-adjacent credibility, Deloitte fits.
On pricing, what is the practical difference?
EPC Group publishes fixed-fee accelerators for common engagement patterns: Copilot Readiness Assessment ($15,000), Power BI Quick-Start ($25,000), Microsoft 365 Security Hardening ($25,000), SharePoint Migration Accelerator ($35,000), Azure Landing Zone ($40,000), AI Governance Framework ($75,000) — plus a Managed Microsoft Services retainer ($6,500-$35,000/month) and prepaid Consulting Blocks. Deloitte is predominantly T&M or large blocked-fee statements of work at Big-4-consulting rate cards. Deloitte engagements at the Fortune 100 level frequently reach seven and eight figures; at mid-enterprise, individual workstreams typically start in the mid-six figures. For bounded outcomes, EPC Group's fixed fee is dramatically more predictable and lower-cost. For a Fortune 100 multi-year transformation program requiring audit-adjacent oversight, Deloitte's model matches the shape of the work.
On sector specialization, what is the practical difference?
EPC Group runs compliance patterns as the default posture: HIPAA (healthcare), SOC 2 (financial services), FedRAMP + CJIS + StateRAMP (government), FINRA + SEC Rule 17a-4 (banking), CMMC 2.0 (defense), FDA 21 CFR Part 11 + GxP (life sciences), NERC CIP (energy), FERPA (higher ed). 70+ Fortune 500 clients concentrated in regulated verticals. Deloitte covers all these verticals globally with specialist practices in each, plus deep sector expertise from the audit and risk advisory side (Deloitte is one of the largest audit firms globally). Deloitte's sector strength comes from the CPA-firm-plus-consulting model — combined finance + risk + technology delivery. EPC Group's comes from Microsoft-technology-specialist depth.
When would a buyer pick Deloitte over EPC Group?
Four scenarios: (1) Fortune 100 multi-year transformation program spanning Microsoft + SAP + Salesforce + Oracle where cross-platform integration and single-vendor accountability are procurement requirements. (2) The engagement requires audit-adjacent credibility for board or SEC oversight (e.g., pre-IPO tech transformation, post-M&A finance system consolidation where the audit firm needs to sign off on internal controls). (3) The buyer values Big 4 brand recognition for board or shareholder communications. (4) The buyer already has Deloitte on multiple service lines (audit + tax + advisory) and adding Microsoft consulting to that relationship is preferred to standing up a second vendor.
When would a buyer pick EPC Group over Deloitte?
Four scenarios: (1) The buyer wants the deepest Microsoft-only ecosystem bench — 29 years of continuous Microsoft consulting, all six Solutions Partner Designations, Microsoft Press author leadership, original SharePoint/Power BI beta team involvement. (2) The buyer wants published fixed-fee accelerator prices ($15K-$75K) for bounded outcomes — dramatically more predictable and lower-cost than Big-4 T&M or blocked-fee SOWs. (3) The buyer wants a senior architect on the whiteboard the entire engagement, not two or three levels removed from a Big 4 partner. (4) The buyer wants a firm with 11,000+ enterprise engagements, 216+ M&A tenant migrations moving 1.83 million users (2023-2025), and North America's oldest continuous Microsoft Gold Partner heritage — without paying for Big 4 brand-and-overhead pricing.
What about audit-independence concerns when Deloitte is the audit firm?
This is a real consideration. If Deloitte is already the buyer's external audit firm, adding Deloitte for Microsoft consulting can create SEC / PCAOB independence review issues — particularly around any consulting work that touches financial reporting systems, internal controls over financial reporting (ICFR), or SOX-scoped applications. Public-company audit committees and General Counsel typically require pre-approval and independence analysis before adding non-audit services from the audit firm. If independence is a concern, EPC Group is one of the specialist alternatives that Big 4 audit clients frequently engage for Microsoft-heavy consulting scopes precisely to avoid the independence question — EPC Group is a Microsoft-native consulting firm with no audit or attest practice, so independence is not implicated.
Talk to a senior architect
If you are actively evaluating EPC Group vs Deloitte for a specific engagement, the fastest path is a 30-minute discovery call with a senior EPC Group architect. We will tell you honestly which firm fits your shape of work — including independence considerations if Deloitte is your audit firm.
Email contact@epcgroup.net or call 888-381-9725.
North America's oldest continuous Microsoft Gold Partner (2000 until Microsoft retired the program in 2022) — today holding all six Microsoft Solutions Partner Designations.