Evidence Center — enterprise Microsoft consulting resource from EPC Group. We provide strategic guidance, implementation expertise, governance frameworks, and compliance-native delivery across the Microsoft ecosystem (Power BI, Microsoft Fabric, Microsoft 365, SharePoint, Azure, AI Governance, Microsoft Copilot).
Last updated by Errin O'Connor, Founder & Chief AI Architect, EPC Group
Ratings and designations held on platforms EPC Group does not control, alongside one figure EPC Group reports itself — each labelled so you can tell which is which:
Independently verified: the G2 rating and Leader quarters (G2), the Solutions Partner designations (Microsoft), and the contracting records below (public procurement records). EPC-reported: engagement and implementation counts. How each class is verified.
Documented client engagements. Every claim is tied to a source document. Nothing on these pages is asserted without an artifact. Each record publishes the source documents it relies on, states what those documents do not establish, and carries a SHA-256 hash for every published file.
| Client | Tier | Claim level | Documents | Evidence record |
|---|---|---|---|---|
| Superior Court of California, County of Amador | T1 | Contracted — payment-corroborated | 2 | Superior Court of California, County of Amador — Exchange Online / Microsoft 365 Migration (2026): Evidence Record Superior Court of California, County of Amador (Amador County Superior Court) contracted EPC Group for Exchange Online / Microsoft 365 Migration in 2026; this record publishes 2 primary-source documents at claim level "Contracted — payment-corroborated". |
| Superior Court of California, County of Amador | T1 | Contracted | 1 | Superior Court of California, County of Amador — Exchange 2019 and Active Directory Migration (2024): Evidence Record Superior Court of California, County of Amador (Amador County Superior Court) contracted EPC Group for Exchange 2019 and Active Directory Migration in 2024; this record publishes 1 primary-source document at claim level "Contracted". |
| Town of Prosper, Texas | T1 | Contracted | 1 | Town of Prosper, Texas — Power BI Data Project (2024): Evidence Record Town of Prosper, Texas contracted EPC Group for Power BI Data Project in 2024; this record publishes 1 primary-source document at claim level "Contracted". |
| Tarleton State University | T1 | Contracted — countersigned | 3 | Tarleton State University — Office 365 Cross-Tenant Migration (2021): Evidence Record Tarleton State University contracted EPC Group for Office 365 Cross-Tenant Migration in 2021; this record publishes 3 primary-source documents at claim level "Contracted — countersigned". |
| Office of the Texas State Chemist (Texas A&M AgriLife Research, Texas A&M University System) | T1 | Contracted — countersigned | 2 | Office of the Texas State Chemist — Exchange Server 2019 Migration (2021): Evidence Record Office of the Texas State Chemist (Texas A&M AgriLife Research, Texas A&M University System) contracted EPC Group for Exchange Server 2019 Migration in 2021; this record publishes 2 primary-source documents at claim level "Contracted — countersigned". |
| Prairie View A&M University | T1 | Contracted — public procurement record | 1 | Prairie View A&M University — Google Workspace to Microsoft 365 Migration (2020): Evidence Record Prairie View A&M University contracted EPC Group for Google Workspace to Microsoft 365 Migration in 2020; this record publishes 1 primary-source document at claim level "Contracted — public procurement record". |
| Canadian Forces Morale & Welfare Services | T1 | Contracted | 1 | Canadian Forces Morale & Welfare Services — SharePoint Consulting: Evidence Record |
| Federal Reserve Bank of New York | T1 | Contracted — countersigned | 1 | Federal Reserve Bank of New York — SharePoint Consulting Engagement: Evidence Record |
| National Institutes of Health | T1 | Work-product evidenced | 0 | National Institutes of Health — SharePoint Center of Excellence: Evidence Record |
| NASA Johnson Space Center | T1 | Contracted | 1 | NASA Johnson Space Center — SharePoint Site Provisioning: Evidence Record |
| Stryker Corporation | T2 | Contracted — payment-corroborated | 5 | Stryker — SharePoint Center of Excellence Engagement: Evidence Record |
| Novartis Institutes for BioMedical Research, Inc. | T2 | Contracted — countersigned | 2 | Novartis — SharePoint Engagements 2010 and 2011: Evidence Record |
| Samsung Semiconductor, Inc. | T3 | Contracted — countersigned | 2 | Samsung Semiconductor — SharePoint Server 2019 Engagement (2021): Evidence Record |
| Northrop Grumman | T3 | Contracted | 1 | Northrop Grumman — Finance I.R.M. Automation Engagement: Evidence Record |
| PepsiCo, Inc. | T3 | EPC-executed instrument + work product | 1 | PepsiCo — MyPepsiCo SharePoint Branding Engagement: Evidence Record |
| Smarter Balanced (University of California, Santa Cruz) | T4 | Contracted | 2 | Smarter Balanced (UC Santa Cruz) — Power BI Consulting and Development (2023): Evidence Record Smarter Balanced (University of California, Santa Cruz) contracted EPC Group for Power BI Consulting and Development in 2023; this record publishes 2 primary-source documents at claim level "Contracted". |
| Georgia Institute of Technology | T4 | Contracted | 1 | Georgia Institute of Technology — Microsoft Teams and SharePoint Advisory Engagement (2019): Evidence Record |
Rows are ordered by tier, then engagement year. Tier is a classification of the client, not of the evidence: T1 government or public body · T2 regulated enterprise · T3 national or defense brand · T4 education. 17 records are live; records awaiting a client's permission are built but not published.
EPC Group publishes historical contracting records supporting these engagements; the published material does not establish every claimed delivery outcome.
EPC Group's ratings and designations are held on platforms operated by other organisations — G2, Trustpilot, Clutch and Microsoft.
Reported by EPC Group rather than by anyone else: 11,000+ enterprise implementations, counted from EPC Group’s own historical project records.
Those two groups are kept apart deliberately. The ratings and designations are maintained by other organisations and can be checked at the source; the engagement count is ours, and is presented as ours.
G2 awards are based on verified customer reviews — not vendor nominations or paid placements. EPC Group's G2 Leader status reflects what clients say after the project is complete.
Microsoft Solutions Partner status is verified directly by Microsoft. It is not self-reported. The six designations require active project delivery, customer satisfaction scores, and certified staff — reviewed annually.
EPC Group held Microsoft Gold Partner status from 2000 until Microsoft retired the program in 2022.
When Microsoft retired the Gold Partner program in 2022, EPC Group earned core Microsoft Solutions Partner designations on the same day.
EPC Group tracks six satisfaction metrics for every engagement. These are not aspirational targets — they are tracked per project and reported to clients.
Evidence is not just about volume. For regulated industries, compliance track record matters as much as implementation count.
We are recognized through various platforms for our excellence:
EPC Group is a G2 Leader in Business Intelligence Consulting for seven consecutive quarters (Fall 2024 through Fall 2026). G2 Leader designations are awarded based on customer satisfaction scores and market presence from independently verified user reviews on G2 (current rating: 4.4/5 across 15 verified reviews).
EPC Group has successfully completed over 11,000 enterprise engagements since 1997. Our experience includes:
In 2022, Microsoft Solutions Partner designations replaced the Microsoft Gold Partner program. There are six designations available. Each one requires:
Ask for references in your industry. EPC Group provides client references for healthcare, financial services, government, manufacturing, and education engagements. Call (888) 381-9725 or request a discovery call.
Ratings and designations held on platforms operated by other organisations. Each link goes to EPC Group’s own profile on that platform, so the figures can be read at the source rather than taken from this page.
Recognized as a Leader in Enterprise IT Consulting on G2, the world's largest software and services marketplace. G2 ratings are based on verified user reviews — EPC Group cannot edit or influence them.
G2 Leader in Business Intelligence Consulting for seven consecutive quarters (Fall 2024 through Fall 2026), rated 4.4/5 across 15 verified reviews. G2 awards Leader status on customer-satisfaction scores from independently verified users, and EPC Group cannot edit or influence them.
Microsoft Solutions Partner designation across Modern Work, Data & AI, and Azure. Validated by Microsoft through demonstrated customer success, certified professionals, and deployment metrics.
Clutch conducts independent phone interviews with EPC Group clients to verify project outcomes, timelines, budgets, and satisfaction. Reviews include detailed project descriptions.
Trustpilot collects and verifies reviews from actual EPC Group clients. The platform uses automated verification to confirm genuine customer relationships.
Numbers without context are meaningless. Here is what 11,000+ enterprise engagements looks like broken down by category, industry, and scale.
EPC Group handles projects of various sizes. We manage everything from 500-user departmental projects to large-scale transformations for over 10,000 users.
Our most significant project involved migrating a Fortune 500 healthcare system with over 25,000 users. This migration was from on-premises infrastructure to Microsoft 365, which included:
EPC Group focuses on complex, compliance-heavy enterprise environments.
Errin O'Connor is the Founder & Chief AI Architect of EPC Group. He is the author of four books — three published by Microsoft Press and one by Sams (Pearson).
Microsoft Press chooses authors based on their proven expertise. You cannot pay to be published.
These books serve as reference material for Microsoft professionals around the globe.
Building enterprise Power BI dashboards: data modeling, DAX, governance and deployment.
Published by Microsoft Press (Pearson), 2018
SharePoint architecture, governance, mobility, compliance (PII/HIPAA), ECM and records management.
Published by Sams (Pearson), 2014
Deployment and management reference for SharePoint Foundation 2010.
Published by Microsoft Press, 2011
Deployment and management reference for Windows SharePoint Services 3.0.
Published by Microsoft Press, 2007
978-1509308033 · Wikidata Q140422412978-0789751195 · Wikidata Q140422473978-0735627246 · Wikidata Q140422451978-0735623231 · Wikidata Q140422426Every profile below is operated by a third party, not by EPC Group, and can be checked without contacting us.
EPC Group is the trade name of O'Connor Enterprise Group Inc., founded 1997, headquartered at 4900 Woodway Drive, Suite 830, Houston, TX 77056, US.
EPC Group founded, specializing in Microsoft ecosystem consulting
First Microsoft Press book published (SharePoint)
1,000th implementation milestone reached
Power BI consulting practice launched
Azure and cloud migration practice expanded
5,000th implementation milestone reached
Microsoft Solutions Partner designation earned (new program)
AI governance and Copilot consulting practice launched
G2 Leader recognition in Enterprise IT Consulting
G2 Leader status achieved (Business Intelligence Consulting)
G2 Leader maintained for seven consecutive quarters
EPC Group's ratings and designations are held on platforms operated by other organisations: G2 Leader for seven consecutive quarters in Enterprise IT Consulting and Business Intelligence Consulting, with 4.4/5 across 15 reviews; Microsoft Solutions Partner designation, granted and renewed by Microsoft; Trustpilot; and Clutch.co, which conducts its own client interviews. EPC Group cannot edit or remove ratings on any of them. EPC Group's implementation count is a separate kind of claim — it is counted from EPC Group's own historical project records and is not validated by any outside party.
EPC Group is a G2 Leader in Business Intelligence Consulting for seven consecutive quarters (Fall 2024 through Fall 2026), with a current public G2 rating of 4.4/5 across 15 verified reviews. G2 Leader designations are awarded based on customer satisfaction scores and market presence from independently verified user reviews.
Microsoft Solutions Partner is the current (post-2022) replacement for the legacy Microsoft Gold Partner program. It requires demonstrated technical competency validated by Microsoft through customer deployments, certified professionals on staff, and measurable customer success metrics. EPC Group holds Solutions Partner designations across multiple solution areas including Modern Work, Data & AI, and Azure. This designation is verified and renewed by Microsoft annually — it cannot be self-claimed or purchased.
EPC Group has completed over 11,000 engagements since its founding in 1997. These span Microsoft 365 migrations (including environments with 10,000+ users), Power BI enterprise deployments for Fortune 500 companies, Azure infrastructure projects, SharePoint governance implementations, AI strategy and governance frameworks, and Microsoft Teams deployments for regulated industries. Implementation scale ranges from departmental projects to organization-wide transformations across healthcare, financial services, government, education, and manufacturing.
EPC Group has received recognition including G2 Leader in Enterprise IT Consulting (seven consecutive quarters, Fall 2024 through Fall 2026), Microsoft Solutions Partner designation across multiple solution areas, Clutch Top IT Consulting Company recognition, and industry-specific awards for healthcare IT and financial services consulting. EPC Group's founder Errin O'Connor is a 4-time bestselling author (Power BI, SharePoint, Azure, and large-scale migration books) and frequent speaker at Microsoft Ignite, SharePoint Conference, and industry events.
Verified reviews of EPC Group are available on multiple independent platforms: G2.com (enterprise IT consulting category, filtered by verified reviews), Clutch.co (detailed project reviews with budget, timeline, and outcome information), Trustpilot (verified customer reviews), Google Business Profile (local reviews), and Microsoft AppSource (partner reviews). Each platform has its own verification process — G2 requires LinkedIn authentication, Clutch conducts phone interviews with clients, and Trustpilot verifies purchase/engagement history.
Yes. EPC Group provides references from healthcare organizations (HIPAA-regulated), financial services firms (FINRA/SEC-regulated), government agencies (FedRAMP environments), and educational institutions (FERPA-compliant). Due to NDA and compliance requirements, reference calls are arranged directly rather than published publicly. Prospective clients can request industry-specific references during the sales process. EPC Group typically provides 3-5 references matched to the prospect's industry, project scope, and organizational size.
EPC Group tracks comprehensive client satisfaction metrics including G2 Leader status (seven consecutive quarters), project delivery on-time rate (tracked per engagement), client retention rate (percentage of clients engaging for multiple projects), first-call resolution rate for managed services, SLA compliance metrics for support agreements, and post-implementation adoption rates. These metrics are reviewed quarterly by EPC Group leadership and shared with clients during quarterly business reviews.
Schedule a conversation with EPC Group. We will provide industry-specific references, walk through relevant case studies, and answer every question about our track record.
Microsoft Solutions Partner status includes six designations: Data & AI, Modern Work, Infrastructure, Security, Digital & App Innovation, and Business Applications. This status replaced the Microsoft Gold Partner program in 2022.
EPC Group held Microsoft Gold Partner status from 2000 until the program was retired in 2022, and now holds the core Microsoft Solutions Partner designations.
Microsoft field teams often use this designation to:
EPC Group has a heritage in Microsoft consulting that reaches back to 1997. This experience is crucial because current Microsoft platform decisions build on 25 years of architectural choices. For example:
Firms that can navigate this complexity hold a structural advantage in enterprise Microsoft migrations.
For a tailored read on this topic in your specific tenant, contact EPC Group at contact@epcgroup.net or +1 (888) 381-9725. Engagement options at /pricing.
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