Expert Microsoft consulting and implementation
From a small Microsoft consulting firm in Houston to a trusted partner for Fortune 500 enterprises worldwide. Discover the milestones, achievements, and innovations that have defined EPC Group's journey.
From founding in 1997 to pioneering AI governance in 2024, explore the key milestones that shaped EPC Group into a leading enterprise Microsoft consulting firm.
Errin O'Connor establishes EPC Group in Houston, Texas, with a vision to provide enterprise-grade Microsoft consulting services. The company focuses on emerging SharePoint and Microsoft technologies for large organizations.
EPC Group pioneers Microsoft's collaboration platform that would become a cornerstone of the company's services.
EPC Group achieves Microsoft Gold Partner certification, gaining direct access to Microsoft technical resources and demonstrating deep competency across multiple solution areas.
EPC Group secures its first multi-hospital system implementation, developing proprietary HIPAA compliance frameworks for SharePoint deployments in healthcare environments.
EPC Group pivots to serve exclusively enterprise and Fortune 500 clients, developing scalable implementation methodologies for organizations with 10,000+ users.
Errin O'Connor publishes first Microsoft Press book on SharePoint, establishing EPC Group as a thought leader in the Microsoft ecosystem. The book becomes a bestseller and industry reference.
EPC Group enters the federal government sector, obtaining security clearances and developing FedRAMP compliance expertise for classified and sensitive SharePoint environments.
EPC Group surpasses 50 million documents migrated with a proprietary zero-downtime methodology, becoming the go-to partner for large-scale enterprise platform transitions.
EPC Group launches its Office 365 migration practice, helping Fortune 500 organizations move from on-premises infrastructure to hybrid and cloud-first architectures.
EPC Group establishes a dedicated Power BI consulting practice, creating enterprise BI governance frameworks and delivering analytics solutions for Fortune 500 organizations.
EPC Group launches its Azure consulting practice, helping enterprises modernize infrastructure with cloud-native architectures, migration strategies, and security frameworks.
Errin O'Connor publishes fourth Microsoft Press bestseller on large-scale migrations, cementing EPC Group's reputation as the go-to authority for complex enterprise transformations.
When the pandemic reshapes enterprise work, EPC Group leads rapid Microsoft Teams deployments and develops remote work governance frameworks for thousands of distributed employees.
EPC Group achieves SOC 2 Type II certification and expands into major banking and financial services clients, developing specialized compliance frameworks for regulated industries.
EPC Group pioneers enterprise AI governance, developing responsible AI frameworks and leading Microsoft Copilot implementations for Fortune 500 organizations across healthcare, finance, and government.
Errin O'Connor assumes Chief AI Architect role, leading EPC Group's mission to help enterprises navigate the AI transformation era with governance, security, and strategic implementation.
From founder to Chief AI Architect, Errin O'Connor's leadership has evolved with the technology landscape while maintaining a consistent vision of enterprise excellence.
Founder, CEO & Chief AI Architect
With over 29 years of enterprise consulting experience and four Microsoft Press bestselling books, Errin O'Connor has led EPC Group from a small Houston startup to a trusted partner for Fortune 500 enterprises worldwide. His expertise spans SharePoint, Power BI, Azure, and AI governance.
Founder & Principal Consultant
Building the foundation with early Microsoft technologies and SharePoint expertise
CEO & Practice Lead
Scaling to Fortune 500 clients and establishing industry expertise
CEO & Chief Architect
Leading cloud transformation and large-scale migrations
CEO & Chief AI Architect
Pioneering AI governance and next-generation Microsoft solutions
Our partnership with Microsoft has been a cornerstone of EPC Group's success. From early partner enrollment in 1997 to our current status as an AI and Copilot implementation partner, we've grown alongside Microsoft's enterprise solutions.
Errin O'Connor's published works have become industry references for enterprise Microsoft implementations, migrations, and best practices.
Comprehensive guide to deploying and managing SharePoint for large organizations, covering governance, architecture, and enterprise content management strategies.
Enterprise-focused Power BI handbook covering data modeling, DAX optimization, governance frameworks, and organization-wide deployment strategies for Fortune 500 environments.
Authoritative guide to Azure cloud architecture patterns, hybrid deployments, security frameworks, and cost optimization for enterprise-scale infrastructure modernization.
Definitive methodology for executing zero-downtime migrations at scale, covering planning, execution, validation, and post-migration optimization for 10,000+ user environments.
Over 29 years, EPC Group has built lasting relationships with Fortune 500 companies across multiple industries.
HIPAA-compliant SharePoint, Power BI, and Azure implementations for hospital networks, health systems, and medical research organizations.
SOC 2 and FINRA-compliant Microsoft solutions for banks, insurance companies, investment firms, and financial technology providers.
FedRAMP framework contributor Microsoft deployments for federal agencies, state governments, and defense organizations with classified environments.
Power BI analytics dashboards, supply chain visibility solutions, and Azure IoT integrations for global manufacturing enterprises.
Microsoft 365 and Teams deployments for universities, K-12 districts, and education technology organizations serving millions of students.
Azure cloud migrations, Power BI operational dashboards, and compliance frameworks for oil & gas, utilities, and renewable energy companies.
Join the ranks of Fortune 500 companies that trust EPC Group for their Microsoft solutions.
View Case StudiesIndustry recognition for our commitment to excellence, security, and client success.
2003-Present
Held Gold Partner certification (2003–2022) across multiple competency areas including Cloud Platform, Data Analytics, and Collaboration & Content.
2021
Achieved SOC 2 Type II certification demonstrating rigorous security controls, availability standards, and data protection practices.
Multiple Years
Recognized among America's fastest-growing companies multiple years running.
Industry Recognition
Consistently ranked as a top SharePoint consulting firm by industry analysts for enterprise-scale implementation expertise.
Ongoing
Active contributions to the Microsoft MVP community through published books, conference speaking, and technical thought leadership.
Regional Awards
Recognized as a leading Microsoft 365 partner for complex enterprise migrations and multi-tenant deployments in the Americas.
A legacy built on measurable results
For 29 years, we've helped Fortune 500 companies transform with Microsoft technology. Let's write your success story together.
EPC Group was founded in 1997 in Houston, Texas by Errin O'Connor. The company began as a Microsoft consulting firm focused on SharePoint and enterprise collaboration, growing over 29 years into a premier Microsoft Gold Partner serving Fortune 500 enterprises worldwide.
Key milestones include: founding in 1997, achieving Microsoft Solutions Partner status (former Microsoft Gold Partner 2003–2022) in 2003, publishing the first Microsoft Press book in 2008, completing 6,500+ SharePoint implementations, expanding into AI governance and Microsoft Copilot consulting in 2023, and earning four consecutive G2 Leader awards for Business Intelligence Consulting.
EPC Group is led by Errin O'Connor, Founder, CEO, and Chief AI Architect. With 29 years of enterprise consulting experience, he is a 4-time bestselling Microsoft Press author and trusted advisor to Fortune 500 CTOs and CIOs. The leadership team includes principal consultants across SharePoint, Power BI, Azure, AI, and security practices.
EPC Group has been a Microsoft partner since 1997, achieving Gold Partner certification in 2003. The partnership spans over 29 years and includes multiple Gold competencies, Cloud Solutions Provider status, and recognition as an AI and Copilot implementation partner with direct Microsoft technical support and early access to new technologies.
EPC Group has grown from a small Houston startup to a national enterprise consulting firm serving 600+ clients across healthcare, finance, government, manufacturing, and education. Growth milestones include 625+ cloud migrations, 1,500+ Power BI implementations, 6,500+ SharePoint deployments, and expansion into AI governance and Microsoft Fabric consulting.
Microsoft Solutions Partner status (six designations: Data & AI, Modern Work, Infrastructure, Security, Digital & App Innovation, Business Applications) replaced the legacy Microsoft Gold Partner program in 2022. EPC Group held Gold Partner status from 2003 to 2022 (the oldest continuous Gold Partner in North America) and currently holds all six Solutions Partner designations; a credentialing footprint shared by fewer than 50 firms globally and typically used by Microsoft field teams as a vetting gate for enterprise Customer 0 nominations and named-account engagements.
EPC Group 29-year Microsoft consulting heritage matters specifically because Microsoft platform decisions today are layered on top of 25 years of architectural choices: Active Directory schema decisions from 2005 affect Microsoft Entra ID Conditional Access policy design in 2026; SharePoint 2003 information architecture decisions affect Copilot grounding quality in 2026. The firms that can navigate that depth (fewer than a dozen Microsoft Solutions Partners in North America) have a structural advantage on enterprise Microsoft migrations.
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