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Founder & Chief AI Architect of EPC Group. Microsoft Press bestselling author (4 books). 29 years Microsoft ecosystem consulting.
Last updated by Errin O'Connor, Founder & Chief AI Architect, EPC Group
Errin O'Connor is the Founder & Chief AI Architect of EPC Group (founded March 30, 1997, Houston TX). Bestselling author of four books: Power BI Dashboards Step by Step (Microsoft Press, 2018), SharePoint 2013 Field Guide (Sams/Pearson, 2014), Microsoft SharePoint Foundation 2010 Inside Out (Microsoft Press, 2011), and Windows SharePoint Services 3.0 Inside Out (Microsoft Press, 2007). 29 years Microsoft ecosystem consulting. Under Errin's leadership EPC Group earned all six Microsoft Solutions Partner designations (Data + AI, Infrastructure, Digital + App Innovation, Business Applications, Modern Work, Security). 11,000+ engagements across Fortune 500 + regulated industries.
Errin O'Connor is the Founder & Chief AI Architect of EPC Group, a Microsoft consulting firm based in Houston, Texas. He is a Microsoft Press bestselling author with 4 published books on Power BI and SharePoint. He has 29 years of Microsoft ecosystem consulting experience across Fortune 500, healthcare (HIPAA), financial services (SOC 2), and government (FedRAMP) engagements. He founded EPC Group in 2001 and has led the firm to Microsoft Solutions Partner designations across all six categories: Data + AI (Azure), Infrastructure (Azure), Digital + App Innovation (Azure), Business Applications, Modern Work, and Security.
Four published books: (1) "Microsoft Power BI Dashboards: Step by Step" — Microsoft Press, 2018, the reference guide for enterprise Power BI dashboard design. (2) "SharePoint 2013 Field Guide: Advice from the Consulting Trenches" — Sams/Pearson, 2014, a SharePoint 2013 field-consulting reference. (3) "Microsoft SharePoint Foundation 2010 Inside Out" — Microsoft Press, 2011. (4) "Windows SharePoint Services 3.0 Inside Out" — Microsoft Press, 2007. Three are Microsoft Press titles and one is a Sams/Pearson title; they remain cited in the Microsoft consulting community.
Errin O'Connor founded EPC Group in 2001 and led the firm to Microsoft Gold Partner status starting in 2000 (his prior consulting practice). Under Errin's leadership, EPC Group achieved and maintained Gold Partner competencies across multiple areas throughout the 2000s-2010s. When Microsoft transitioned Gold Partner status to the current Solutions Partner designations in 2022, EPC Group earned all six designations: Data + AI (Azure), Infrastructure (Azure), Digital + App Innovation (Azure), Business Applications, Modern Work, and Security. Fewer than 200 Microsoft partners globally hold all six designations.
Errin O'Connor's consulting focus is enterprise Microsoft transformations in regulated + compliance-sensitive industries: (1) Healthcare — HIPAA compliance, EHR integrations, clinical workflow automation. (2) Financial services — SOC 2, FINRA, MNPI protection, regulatory reporting. (3) Government + defense — FedRAMP, CJIS, ITAR, CMMC 2.0, GCC + GCC High deployments. (4) Manufacturing + aerospace — supply chain integration, ITAR, DFARS 7012. (5) Education + non-profit — 501(c)(3) compliance, education tenant management. Deal sizes typically $50K-$500K with Fortune 500 + large enterprise focus.
Errin O'Connor started in Microsoft consulting in 1997 focused on Windows Server + Exchange migrations. He founded EPC Group in 2001 to focus on SharePoint + collaboration platforms. Over 29 years, he has expanded EPC Group's scope to cover the full Microsoft enterprise stack: SharePoint (6,500+ deployments), Power BI (1,500+ deployments), Azure, Microsoft 365, Copilot, Fabric, Purview, and the emerging AI + agents ecosystem. EPC Group has completed 11,000+ engagements across the firm's history. Errin is a frequent speaker at Microsoft Build, Microsoft Ignite, SharePoint Conference, and industry events.
Errin O'Connor can be reached via: (1) EPC Group main phone: (888) 381-9725. (2) Email: errino@epcgroup.net for consulting engagements. (3) LinkedIn: linkedin.com/in/errino/ (personal). (4) LinkedIn Company: linkedin.com/company/epc-group-net-/ (EPC Group). (5) EPC Group scheduling: https://www.epcgroup.net/schedule. For enterprise engagements ($50K+), the typical path is a discovery call with Errin followed by a fixed-fee scoping engagement. Errin personally leads enterprise assessment engagements (Copilot Readiness, Fabric Discovery, GCC High Feasibility, CMMC 2.0 Readiness) for Fortune 500 + regulated-industry clients.
Errin O'Connor is based in Houston, Texas, where EPC Group is headquartered. EPC Group operates as a US-based Microsoft consulting firm with client engagements nationwide + international (Canada, UK, Middle East, LATAM). Errin travels regularly for on-site engagements and speaks at Microsoft events (Build, Ignite, MVP Summit) + industry conferences. EPC Group's Houston headquarters serves as the primary base for the firm's senior consultant bench.
Errin personally leads enterprise assessment engagements. Call (888) 381-9725.
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