Enterprise Microsoft Consulting Case Studies: Real Results at Scale

The Challenge

A multi-state healthcare system with 50,000 employees across 12 hospitals and 200+ outpatient clinics was running SharePoint 2013 on-premises. The platform housed 4.2 million documents, including clinical protocols, patient education materials, administrative policies, and departmental collaboration sites. Three previous migration attempts by other consulting firms had failed — one stalled during pilot, one introduced PHI exposure risks that triggered a compliance review, and one was abandoned after 60 days due to poor project governance.

The CIO's mandate was clear: migrate to SharePoint Online within 12 months, maintain HIPAA compliance throughout with zero PHI exposure incidents, achieve measurable productivity improvement, and do it without disrupting clinical operations. The organization was also facing a contract renewal on their on-premises infrastructure that would cost $1.8M annually if the migration was not completed on schedule.

The Solution

EPC Group deployed a phased migration architecture using SharePoint Assessment Tool (SMAT) for discovery, followed by our proprietary governance framework that classified every site collection by sensitivity level. We implemented Microsoft Purview sensitivity labels across all content before migration began — not after — ensuring PHI was classified and protected in transit. Migration waves were structured by department criticality: administrative departments first, then clinical support, and finally direct patient care teams.

A dedicated change management team of 8 specialists worked alongside 120 departmental champions trained in the new platform. We built custom Power Automate workflows to replace 340 legacy InfoPath forms that clinical staff relied on daily. Conditional Access policies enforced compliant device access, and Azure Private Link ensured all data transit remained within Microsoft's backbone network.

The Results

The Challenge

A global financial services firm with operations in 14 countries was running IBM Cognos as its primary analytics platform. The Cognos environment supported 8,000 analysts and portfolio managers across investment banking, wealth management, risk, and compliance divisions. Annual licensing and infrastructure costs exceeded $3.4M. Report development cycles averaged 6-8 weeks, and the IT BI team had a backlog of 400+ report requests that grew by 30 per month.

The firm's Chief Data Officer wanted to consolidate onto Power BI Premium to reduce costs, enable self-service analytics, and integrate with the Microsoft 365 environment the firm had adopted two years earlier. The challenge was massive: 2,400 Cognos reports needed to be migrated or rebuilt, row-level security had to enforce regulatory data boundaries between divisions, and SOC 2 Type II compliance could not lapse during transition. Two previous internal attempts to pilot Power BI had failed because analysts rejected the new tool due to inadequate training and missing features from their Cognos workflows.

The Solution

EPC Group began with a 6-week Cognos report rationalization exercise. Of the 2,400 reports, only 680 had been accessed in the past 90 days. We categorized these into three tiers: Tier 1 (142 critical daily-use reports rebuilt first), Tier 2 (310 weekly/monthly reports migrated in Phase 2), and Tier 3 (228 reports rebuilt on-demand as users requested them). This eliminated 1,720 reports that no one was using, dramatically reducing migration scope and timeline.

We deployed Power BI Premium capacity across two Azure regions for geographic redundancy, implemented row-level security models that mapped to existing Cognos security groups, and built a semantic layer using Azure Analysis Services that preserved the business logic analysts depended on. A Power BI Center of Excellence was established with 15 trained power users who served as divisional champions. Training was delivered in role-specific modules — portfolio managers received different training than compliance analysts — with hands-on workshops using their actual data sets rather than generic sample data.

The Results

The Challenge

A large federal agency with 25,000 employees across 40 field offices was operating on a patchwork of legacy collaboration tools — Lotus Notes for email, shared network drives for documents, and Skype for Business Server 2015 for communication. The agency had received a mandate to modernize to Microsoft 365 Government Cloud (GCC High) within 12 months to meet updated NIST 800-53 requirements. The existing Authority to Operate (ATO) was expiring, and any gap in authorization would halt operations.

Complicating matters, the agency handled Controlled Unclassified Information (CUI) that required specific handling procedures, 6,000 users worked in disconnected or low-bandwidth field locations, and the agency's IT staff of 45 had no Microsoft 365 experience. The migration had to maintain continuous operations — there could be no "dark period" where email or document access was unavailable, even briefly.

The Solution

EPC Group designed a GCC High architecture that mapped every NIST 800-53 control family to specific Microsoft 365 configurations. We created a 200-page Security Configuration Baseline document that served as both the implementation guide and the artifact required for ATO authorization. The migration was structured in three phases: (1) Exchange Online migration with coexistence, (2) SharePoint Online and OneDrive deployment, and (3) Teams deployment with voice integration replacing the legacy PBX system.

For low-bandwidth field offices, we deployed Azure ExpressRoute connections and implemented SharePoint differential sync policies that minimized bandwidth consumption. Microsoft Intune managed all 32,000 devices (including 7,000 mobile devices), enforcing encryption, pin requirements, and remote wipe capabilities. Microsoft Sentinel was configured from day one with custom detection rules for CUI access anomalies, providing the continuous monitoring required by FedRAMP.

The Results

The Challenge

A Fortune 500 energy company operating across upstream exploration, midstream logistics, and downstream refining was running 214 servers across two aging data centers. The infrastructure supported SCADA system data collection, financial reporting, ERP (SAP), engineering applications, and corporate collaboration tools. Annual infrastructure costs exceeded $4.8M including hardware refresh cycles, data center lease, power, cooling, and a 12-person operations team.

The company's CTO had a dual mandate: reduce infrastructure costs by at least 30% and improve disaster recovery capabilities. The existing DR strategy was a warm standby data center that cost $1.2M annually but had never been tested end-to-end. Additionally, the company faced regulatory requirements from NERC CIP (North American Electric Reliability Corporation Critical Infrastructure Protection) for certain operational systems, meaning not all workloads could simply be lifted and shifted to public cloud without careful compliance mapping.

The Solution

EPC Group conducted a 4-week Azure Migrate assessment of all 214 servers, categorizing each workload into one of four migration strategies: rehost (lift and shift), replatform (minor modifications), refactor (significant modernization), or retain (keep on-premises for regulatory reasons). Of the 214 servers, 156 were candidates for rehosting, 32 for replatforming to Azure PaaS services, 14 for refactoring into Azure-native architectures, and 12 SCADA-related servers were retained on-premises with Azure Arc management.

We implemented Azure Landing Zone architecture with hub-and-spoke networking, Azure Policy for governance guardrails, and Azure Site Recovery replacing the expensive warm standby data center. Reserved Instances and Azure Hybrid Benefit licensing were applied to all eligible workloads, reducing compute costs by an additional 40% beyond the baseline migration savings. The SAP workload was migrated to Azure Large Instances with certified SAP HANA configurations, and Azure Backup replaced the legacy Commvault infrastructure.

The Results

The Challenge

A major research university with 40,000 students and faculty across 3 campuses had deployed Microsoft Teams during the pandemic as an emergency measure. Two years later, the environment was ungoverned chaos: 28,000 Teams had been created (most abandoned), there was no naming convention, no lifecycle policy, no data classification, and students had created Teams containing FERPA-protected education records without appropriate access controls. The IT department received 200+ Teams-related support tickets per week.

The university's CIO wanted to transform the environment from a liability into a governed collaboration platform that enhanced academic outcomes, supported research collaboration, maintained FERPA compliance, and reduced the IT support burden. The complication was political: faculty resisted any governance they perceived as restricting academic freedom, and students expected consumer-grade simplicity. Any solution that felt bureaucratic would be circumvented immediately.

The Solution

EPC Group implemented a "governance that enables" framework — the opposite of the restrictive policies that had been proposed and rejected twice before. We designed three Teams templates: Course Teams (auto-provisioned from the Student Information System with correct enrollment rosters), Research Teams (approved via a lightweight form with PI verification and data classification), and Department Teams (provisioned by department admins with standardized channels). The key insight was automating provisioning so users never had to think about governance — it was built into the template.

We deployed Microsoft 365 Groups expiration policies that archived inactive Teams after 180 days with a 30-day grace period. Azure AD dynamic groups maintained enrollment-based access automatically. Microsoft Purview sensitivity labels classified research data containing FERPA-protected records, and DLP policies prevented accidental sharing of student education records outside the university tenant. A self-service portal built on Power Apps allowed faculty to request custom Teams configurations without submitting an IT ticket.

The Results

The Challenge

A global manufacturing corporation operating 18 plants across North America and Europe was struggling with analytics fragmentation. Production managers relied on daily spreadsheet exports from SAP ERP, quality data lived in a separate MES (Manufacturing Execution System), supply chain metrics came from a third system, and financial data sat in SAP BW. Getting a unified view of plant performance required manual consolidation that took 2-3 days per reporting cycle, meaning decisions were always based on stale data.

The VP of Operations wanted real-time KPI dashboards embedded directly within the SAP Fiori interface that plant managers already used daily. The dashboards needed to pull from all four data sources, refresh every 15 minutes during production hours, and be accessible on tablets used on the plant floor. The previous attempt with Tableau had been abandoned because Tableau could not embed natively in SAP Fiori, and plant managers refused to use a separate application.

The Solution

EPC Group designed a Power BI Embedded analytics architecture that integrated with SAP Fiori via iFrame embedding with Azure AD authentication pass-through. We built an Azure Data Factory pipeline that extracted data from SAP ERP, the MES system, the supply chain platform, and SAP BW on a 15-minute refresh cycle, loading into an Azure SQL Database optimized star schema. Power BI datasets connected to this unified data layer using DirectQuery for real-time metrics and Import mode for historical trend analysis.

The dashboard suite included 6 core views: Overall Equipment Effectiveness (OEE) by plant and production line, quality defect rate with drill-down to individual work orders, supply chain inventory levels with predictive reorder alerts, financial margin analysis by product line, workforce productivity metrics, and an executive summary comparing all 18 plants on standardized KPIs. Row-level security ensured plant managers saw only their facility data, while regional VPs saw aggregated views. Alerting via Power Automate notified managers when KPIs breached thresholds — for example, if OEE dropped below 85% on any production line.

The Results