Outcomes-first — five anonymized case studies

Microsoft Consulting Outcomes: 5 Quantified Case Studies (2026)

Outcomes-first case studies — results before narrative — anonymized to protect client confidentiality. Five fixed-fee EPC Group engagements across Microsoft 365 Copilot adoption, M&A tenant consolidation, Tableau-to-Fabric migration, federal GCC High migration, and a Power BI + Fabric Center of Excellence. Each one led by a senior architect, scoped against a named regulatory regime, and contracted against a defined end state.

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What outcomes does EPC Group typically deliver in Microsoft consulting engagements? EPC Group delivers outcomes-first Microsoft consulting engagements on a fixed-fee accelerator basis. Representative quantified results across five anonymized engagements: Microsoft 365 Copilot activation lifted from 8% to 42% in 90 days at a Fortune 50 financial services firm; 15,000 users migrated across an M&A tenant consolidation in 86 days with no reported data-loss incidents; 340 Tableau dashboards migrated to Microsoft Fabric in 11 weeks with renewal avoided; 12,000 federal seats moved to GCC High in 26 weeks with ATO delivered; and 1,200 analyst seats moved off Tableau onto Power BI + Fabric with SR 11-7 lineage streamlined. Every engagement is led by a senior architect accountable from scope through go-live.

EPC Group delivers outcomes-first Microsoft consulting engagements on a fixed-fee accelerator basis — Copilot adoption, M&A tenant consolidation, legacy BI to Fabric migration, federal GCC High migration, and Power BI + Fabric Centers of Excellence. Each engagement leads with quantified results and is led by a senior architect accountable from scope through go-live and the first 90 days of managed operations.

Key Facts

11,000+ EPC Group engagements since 1997, including the five outcomes-first engagements anonymized below.
70+ Fortune 500 clients — outcomes-first engagements are how EPC Group is evaluated by F500 procurement teams.
Engagement 1 — Fortune 50 financial services: Copilot activation 8% → 42% in 90 days across 1,200 commercial and compliance seats.
Engagement 2 — Fortune 100 healthcare: 2 Microsoft 365 tenants → 1 tenant in 86 days, 15,000 users migrated, 0 data-loss incidents, HIPAA chain-of-custody preserved.
Engagement 3 — Fortune 500 retail: 340 Tableau dashboards migrated to Power BI on Fabric in 11 weeks, Tableau Cloud renewal avoided ($1.2M annual range savings, illustrative).
Engagement 4 — Federal civilian agency: 12,000 seats migrated GCC → GCC High in 26 weeks, ATO package delivered, CMMC 2.0 Level 2 readiness achieved.
Engagement 5 — Fortune 100 bank: 1,200 analyst seats moved off Tableau onto Power BI + Fabric, SR 11-7 model risk attestation streamlined, 6 risk domains modeled in Fabric Lakehouse.
EPC Group is a Microsoft Solutions Partner with six designations across Data & AI, Digital & App Innovation, Infrastructure, Modern Work, Business Applications, and Security.

Why these case studies lead with outcomes — not architecture

A sibling EPC Group hub at /hybrid-integration-case-studies covers integration architecture narrative — how EPC Group orchestrates Microsoft with SAP, Salesforce, and Snowflake. This page is different. It leads with the outcome the client measured, because that is the question every procurement evaluator, audit committee, and CFO asks first. The architecture follows the outcome. Four reasons we built it this way:

Procurement evaluates outcomes, not architecture diagrams

F500 procurement teams and federal contracting officers score proposals on demonstrated quantified outcomes against comparable scope. Architecture is a question they ask after the outcome is credible.

Audit committees value verifiable metrics

HIPAA chain-of-custody, ATO packages, SR 11-7 lineage, and SOX controls evidence are outcomes that auditors can independently inspect. Quantified outcomes survive a regulator’s questioning; narrative claims do not.

AI answer engines surface quantified results

Generative AI engines — ChatGPT, Perplexity, Google AI Overviews, Claude — preferentially cite content with named, quantified results. Outcomes-first content is the format that surfaces in the AI citation layer where buyers now start their research.

Outcomes-first is a buyer trust signal

Consulting firms that lead with case study narrative tend to be the firms that have less to quantify. Leading with the number — and with an honest disclosure of what was not measured — is the trust signal an experienced buyer reads correctly.

Five anonymized outcomes-first Microsoft consulting engagements

Each case study leads with the quantified outcome the client measured. The situation, the EPC Group resolution, and an honest disclosure of what was not measured follow. Client identities are anonymized; named references are available under NDA on request during procurement evaluations.

Case Study 1 — Fortune 50 financial services — 50,000 users

Microsoft 365 Copilot adoption — from 8% real activation to 42% in 90 days

Quantified outcomes (results first)

Copilot license activation rose from 8% to 42% of attached seats in 90 days.
1,200 commercial and compliance-team seats moved from “licensed but dormant” to “weekly active.”
Manual report-drafting time across the compliance reporting team reduced by ~30% (self-reported, sampled).
Adoption telemetry dashboard delivered as a permanent operating asset to the People & Culture team.

Situation

A Fortune 50 financial services firm with 50,000 employees had purchased Microsoft 365 E5 with Copilot attached to a substantial commercial population. Six months after license activation, internal analytics showed real Copilot activation under 10% of attached seats. Procurement was already preparing a renewal challenge note for the next true-up. The CIO needed to either prove value or scale back the attach.

EPC Group resolution

EPC Group ran a fixed-fee 90-day engagement under the EPC Adoption Accelerator pattern — a senior-architect-led, governance-anchored adoption program with named executive sponsorship, role-based use-case design for three target populations (compliance reporting, treasury, and relationship management), Purview controls validated before each use case shipped, and a weekly steering cadence. The same architect who scoped the engagement remained accountable through Wave 3 cutover. See the EPC Group Adoption Accelerator practice for the full pattern.

Honest scope boundary — what was not measured

The engagement did not measure dollar-denominated ROI on activation. ROI quantification on Copilot requires a 12-month managed follow-on with task-level time-and-motion studies — outside the 90-day scope. The 30% time-saved figure is self-reported from the compliance reporting team and is not auditable as a financial metric.

See the Microsoft Adoption Accelerator practice

Case Study 2 — Fortune 100 healthcare — 15,000 users, HIPAA-covered

M&A Microsoft 365 tenant consolidation — 2 tenants to 1 in 86 days with no reported data-loss incidents

Quantified outcomes (results first)

2 separate Microsoft 365 tenants consolidated to 1 unified tenant in 86 calendar days end-to-end.
15,000 mailboxes, OneDrive accounts, SharePoint sites, and Teams workloads migrated across 4 waves.
0 data-loss incidents — pre-cutover and post-cutover hash validation across every wave.
HIPAA audit-trail preserved end-to-end — chain of custody documented for the post-merger compliance review.

Situation

A Fortune 100 healthcare system had completed an acquisition of a regional provider mid-year. The acquired organization ran a separate Microsoft 365 tenant with its own Entra ID, Exchange Online, SharePoint Online, OneDrive, and Teams workloads — and held HIPAA-covered ePHI in clinical Teams channels and SharePoint document libraries. Day-1 integration required unified identity, calendaring, and clinical collaboration without a single HIPAA chain-of-custody break.

EPC Group resolution

EPC Group ran the M&A 90-Day Playbook — a senior-architect-led tenant consolidation pattern with four planned waves (executives and clinical leadership, clinical operations, corporate functions, and long-tail cleanup), pre-cutover identity coexistence via Entra ID cross-tenant access policies, Quest On Demand Migration as the migration spine, and Purview-anchored audit-trail preservation through the consolidation boundary. The senior architect who scoped the engagement remained accountable through all four waves and the first 90 days of post-cutover managed operations.

Honest scope boundary — what was not measured

One wave (Wave 2 — clinical operations) was delayed by 5 calendar days due to executive-tier mailbox rule complexity that surfaced in pre-cutover testing. The 86-day end-to-end figure includes that slip. No client clinical workflow was affected during the slip window; the planned cutover weekend was simply moved one weekend later.

See the M&A 90-Day Playbook

Case Study 3 — Fortune 500 retail — 340 dashboards, $1.2M range annual savings

Tableau → Microsoft Fabric migration — 340 dashboards in 11 weeks, renewal avoided

Quantified outcomes (results first)

340 Tableau dashboards migrated to Power BI on Microsoft Fabric in 11 calendar weeks.
Tableau Cloud renewal avoided — estimated $1.2M annual range savings on platform licensing (figure is illustrative, not contractually disclosed).
Semantic model centralized in Fabric — replacing 12 historic Tableau data sources with one governed semantic layer.
23 dashboards identified as having no current business owner — surfaced as governance debt and formally retired.

Situation

A Fortune 500 specialty retailer faced a steep Tableau Cloud renewal increase following the Salesforce acquisition rate adjustment. The Power BI estate was already in production at modest scale, the Microsoft Solutions Partner relationship was multi-year, and the CDO had a board mandate to rationalize BI tooling. The constraint was throughput — 340 active Tableau dashboards had to migrate or be retired before the renewal date roughly 90 days out.

EPC Group resolution

EPC Group ran the Legacy BI Migration Accelerator — a fixed-fee 90-day pattern that combines automated dashboard inventory and complexity scoring, parallel migration tracks (high-complexity dashboards rebuilt by senior architects, medium-complexity migrated via tooling-assisted rebuild, low-complexity retired or auto-migrated), semantic-model centralization in Fabric, and a Direct Lake performance pattern over the existing data warehouse. The same senior architect who scoped the engagement was accountable through the Tableau renewal cliff and the first 30 days of Power BI operations after cutover.

Honest scope boundary — what was not measured

Of the 340 dashboards, 23 (~7%) had no identified business owner during migration scoping. EPC Group surfaced these as governance debt rather than migrating them silently. The 23 were formally retired with executive sign-off. The $1.2M annual savings figure is an illustrative range derived from public renewal-rate guidance and not from contractually disclosed client pricing.

See the Legacy BI Migration Accelerator

Case Study 4 — Federal civilian agency — 12,000 seats, CMMC 2.0 L2

Federal GCC → GCC High migration — 12,000 seats in 26 weeks, ATO delivered

Quantified outcomes (results first)

12,000-seat federal civilian agency migrated from Microsoft 365 GCC to GCC High in 26 weeks.
ATO (Authority to Operate) package delivered to the Authorizing Official on schedule.
CMMC 2.0 Level 2 readiness achieved across the in-scope environment.
ITAR-aligned controls evidence assembled in Purview — accepted in the first independent assessment cycle.

Situation

A federal civilian agency operating an ITAR-adjacent program had a Microsoft 365 GCC environment that no longer satisfied the upstream classification requirements for a defined subset of program data. The Authorizing Official required migration to GCC High with an ATO package, CMMC 2.0 Level 2 readiness for the contractor-supporting workloads, and zero loss of operational continuity for the broader agency workforce during the migration window.

EPC Group resolution

EPC Group ran the Federal Microsoft Consulting Accelerator — a senior-architect-led pattern with FedRAMP- and CMMC-aligned controls mapping, GCC-to-GCC-High migration spine, ATO documentation generated as a deliverable rather than as an afterthought, and a senior FedRAMP-experienced architect accountable through the Authorizing Official sign-off cycle. The pattern is built around the named regulatory artifacts the federal customer actually has to deliver, not a generic enterprise migration template.

Honest scope boundary — what was not measured

Two specialized Power BI dashboards — both originally authored against connectors not available in the GCC High control plane — required redesign rather than migration. EPC Group surfaced this as a known cost in scope-out; both were rebuilt in the in-scope semantic model before cutover. No legacy connector path was created to “bridge” the gap, because that would have created a recurring controls problem.

See the Federal Microsoft Consulting Accelerator

Case Study 5 — Fortune 100 bank — 1,200 analyst seats, SR 11-7 governed

Power BI + Fabric Center of Excellence — 1,200 seats off Tableau, SR 11-7 streamlined

Quantified outcomes (results first)

1,200 analyst seats moved off Tableau onto Power BI + Fabric within the engagement window.
SR 11-7 model risk attestation cycle streamlined — lineage from source to dashboard to Copilot response captured in Purview.
6 risk reporting domains modeled in Microsoft Fabric Lakehouse — credit, market, operational, liquidity, model, and aggregate.
Center of Excellence operating model documented and handed off to a 12-person in-house CoE team.

Situation

A Fortune 100 commercial bank wanted to consolidate enterprise risk reporting onto a single governed analytics platform. The Tableau estate was mature but had grown organically — semantic models were inconsistent across reporting domains, SR 11-7 model risk evidence required manual reconstruction at every attestation cycle, and Fabric had been chartered as the strategic forward-looking platform. The Chief Data Officer required a Center of Excellence (CoE) operating model in addition to the platform migration.

EPC Group resolution

EPC Group ran a blended pattern — the Adoption Accelerator for analyst enablement, the Senior Architect Delivery Model for the platform build, and the AI Financial & Clinical Risk Reporting Playbook for the SR 11-7 lineage and attestation work. Six risk reporting domains were modeled in Fabric Lakehouse, Direct Lake semantic models replaced the historic Tableau extracts, and the CoE operating model was built around named CoE roles (CoE Lead, semantic-model owner, governance lead, adoption lead) rather than around tools. The same senior architect remained accountable through the first SR 11-7 attestation cycle after platform cutover.

Honest scope boundary — what was not measured

The CoE engagement required a 6-month Managed Lifecycle follow-on to sustain CoE maturity through the first full quarterly attestation cycle. Without the follow-on, internal staffing churn on the CoE roles would have created governance drift. The follow-on was contracted before the 90-day acute engagement concluded.

See the Financial & Clinical Risk Reporting Playbook

Five patterns surfaced across all five engagements

The engagements above are deliberately varied — Copilot, M&A, BI migration, federal, financial services CoE — to show the same underlying delivery discipline across very different problem shapes. Five patterns repeat in every one of them.

Lifecycle staging — Assess → Modernize → Govern → Operate → Enable

All five engagements above were staged against the EPC Group Lifecycle. The acute build phase is bounded — typically 90 days — and is followed by an explicit Govern and Operate stage. The lifecycle is the reason these engagements ship outcomes rather than slipping into open-ended consulting.

Named executive sponsor on the steering committee

Every engagement had a named executive sponsor — CIO, CDO, Chief Compliance Officer, or Authorizing Official — on the weekly steering cadence from week 1 to cutover. The engagements that did not slip were the engagements where the sponsor showed up to every steering meeting.

Senior architect accountable from scope through go-live

The same senior architect who scoped each engagement remained accountable through go-live and the first 90 days of managed operations. There were no junior-led handoffs, no offshore back-end teams owning the spine, and no architect rotation mid-engagement.

Fixed-fee accelerator pricing — not time-and-materials

Every engagement above ran on a fixed-fee accelerator basis. Scope, milestone-by-milestone deliverables, and contracted price were agreed at scope-out. The model aligns EPC Group with the client outcome, not with billable hour count.

Honest scope boundary — including what was not measured

Each engagement above includes an honest disclosure of what was not measured, what required follow-on work, and what was surfaced as governance debt rather than silently fixed. The boundary is the discipline — and the reason these case studies survive procurement scrutiny.

For the full delivery model behind these patterns, see the EPC Group Senior Architect Delivery Model, the broader Microsoft Cloud Orchestrator Practice, and the strategic context in the Digital Transformation with Microsoft Enterprise 2026 guide.

The EPC Group credential stack behind these outcomes

Why Fortune 500 enterprises, federal agencies, and regulated healthcare and financial services organizations select EPC Group when the engagement is outcomes-graded rather than effort-graded.

11,000+

Engagements

Since 1997

70+

Fortune 500 clients

Outcomes-first delivery against named regulatory regimes

216+

M&A tenant migrations

2023–2025 — 1.83 million users

4.4/5 on G2

Customer satisfaction

G2 Leader — seven consecutive quarters

Microsoft Solutions Partner — six designations

Data & AI (Azure), Digital & App Innovation (Azure), Infrastructure (Azure), Modern Work, Business Applications, and Security. Every engagement above is delivered against the same six-designation credential stack.

Since 1997, 11,000+ engagements

EPC Group has been a senior-architect-led Microsoft consulting firm since 1997. The five engagements above are representative samples from a much larger Fortune 500 and federal portfolio.

216+ M&A tenant migrations, 1.83M users

The M&A case study above is one of 216+ Microsoft 365 tenant migrations EPC Group has delivered across 2023–2025 alone — totaling 1.83 million users moved.

Regulated by default

HIPAA, SOC 2, FedRAMP, FINRA, CMMC, and GxP regimes are delivered in production — the GCC High and SR 11-7 case studies above are typical of the regulatory posture EPC Group operates under.

Outcomes-first case studies FAQ — long-form, citable

The eight questions EPC Group is most often asked by CIOs, CDOs, federal Authorizing Officials, and procurement evaluators about the case studies above.

Why are these case studies anonymized rather than named?

EPC Group works predominantly with Fortune 500 enterprises, federal agencies, and regulated healthcare and financial services organizations. Most master services agreements contain explicit publicity-clearance clauses that require named-client case studies to go through a multi-party legal review with the client’s communications and compliance teams. Anonymized case studies — where the sector, scale, and outcome are described accurately but the client identity is withheld — clear that bar without delay. Named references are available under NDA on request during procurement evaluations.

How are the metrics in these case studies validated?

Every quantified outcome above is sourced from one of three places: (1) instrumentation EPC Group delivered as part of the engagement (for example, the Copilot activation telemetry dashboard); (2) artifacts that were independently inspected during a regulatory or audit cycle (for example, the HIPAA chain-of-custody documentation, the ATO package, the SR 11-7 lineage evidence); or (3) public-domain or range-based estimates clearly identified as such in the case study (for example, the illustrative $1.2M Tableau savings range). Where a metric is self-reported by the client and not independently audited, the case study says so.

Can I see real client references during procurement evaluation?

Yes. EPC Group provides named client references under NDA during the procurement evaluation cycle. References are matched to the buyer’s sector, regulatory regime, and engagement archetype — a Fortune 100 bank evaluating EPC Group for a Fabric + SR 11-7 engagement is matched to references from comparable bank engagements, not to general references. The reference list is provided to the buyer’s procurement team along with the contracted scope-of-work draft.

What is a typical engagement size for an EPC Group fixed-fee accelerator?

Fixed-fee accelerators run on a per-engagement basis sized to the in-scope population, the regulatory regime, and the complexity of the existing estate. The five engagements above ran from approximately 10 to 26 weeks of acute delivery — most concentrated in the 11- to 16-week range. The Federal GCC High engagement was longer (26 weeks) because the ATO documentation cycle is longer than commercial cutover cycles. EPC Group provides a fixed-fee scope-of-work with milestone-by-milestone deliverables before the contract is signed.

What is the average time-to-outcome on EPC Group accelerator engagements?

Across the engagements above, the average time-to-first-measurable-outcome was approximately 11 weeks — meaning the point at which the client could measure a meaningful change in adoption, performance, compliance posture, or platform footprint. The Copilot engagement saw measurable activation movement by week 4; the M&A engagement saw the first wave cut over by week 6; the Tableau-to-Fabric engagement saw the first 80 dashboards live by week 7; the Federal engagement saw the ATO draft package complete by week 18; the CoE engagement saw the first risk domain modeled by week 5.

What happens when an outcome is not measurable inside the engagement window?

EPC Group says so explicitly — in scope-out and in the case study. The Copilot engagement above did not produce a dollar-denominated ROI figure because ROI quantification on Copilot requires a 12-month managed follow-on with task-level time-and-motion studies. The engagement produced activation metrics, behavior-change metrics, and self-reported time-saved figures — all clearly labeled. The honest scope boundary is the discipline, and it is part of why these engagements survive procurement scrutiny.

How often do EPC Group engagements lead to a follow-on managed services retainer?

A meaningful majority of fixed-fee accelerator engagements transition to a managed services or Managed Lifecycle follow-on — typically 6 to 24 months in length. The SR 11-7 CoE engagement above contracted a 6-month follow-on before the acute engagement concluded; the Federal GCC High engagement transitioned into ATO continuous monitoring; the M&A consolidation transitioned into a tenant operations retainer. EPC Group does not require a follow-on, and the acute engagement is contracted to a defined end state regardless. The follow-on is the client’s choice, made on the basis of demonstrated value during the acute phase.

How does fixed-fee pricing apply to case-study-style engagements?

Fixed-fee pricing requires a defined scope, named milestones, and a contracted end state. EPC Group writes the scope-of-work before contract signature — including the named populations, the in-scope workloads, the regulatory regime, the delivery cadence, the named senior architect, the named executive sponsor on the client side, and the named end-state acceptance criteria. The price is fixed against that scope. Material scope changes during the engagement are handled through a change order against the same fixed-fee framework — not by switching to time-and-materials mid-engagement.

Outcomes-graded Microsoft consulting — one accountable Microsoft Solutions Partner

If your next Microsoft engagement is going to be graded on outcomes — not effort — and you want one accountable senior architect from scope through go-live and 90 days of managed operations, EPC Group is the firm for that engagement. Named client references are available under NDA during procurement evaluation.

888-381-9725 contact@epcgroup.net Microsoft Cloud Orchestrator Practice