M&A Project Management

M&A Project Management That Turns Deal Strategy Into a Controlled Integration Plan

Deals don’t create value—integration does. After close, timelines compress, priorities collide, and everyone suddenly has two jobs. Onset provides M&A project management (and post-merger integration support) that coordinates workstreams, manages risks, and keeps leaders aligned—so integration moves fast without breaking operations.

Best for: post-merger integration, carve-outs, systems consolidation, ERP alignment, and cross-functional Day 1 readiness.

What you get

A clear integration roadmap with owners and milestones

Day 1 readiness without last-minute chaos

Controlled workstreams across IT, finance, HR, ops, and vendors

Executive visibility and decision cadence

Reduced risk, faster synergy capture, smoother transitions

Why Integrations Struggle (and How We Fix It)

M&A integration gets messy because:

  • workstreams run in parallel without dependency control
  • decisions slow down when ownership is unclear
  • data, systems, and process differences surface late
  • leadership visibility is inconsistent across teams
  • “business as usual” competes with integration work
  • synergy tracking is vague until it’s too late

 

Onset brings structure and cadence so integration stays coordinated, measurable, and outcome-driven.

What We Do

We provide hands-on integration leadership and practical controls that keep teams aligned.

  • Integration charter and success metrics
  • Workstream definitions and ownership model
  • Integrated master plan with critical path visibility
  • Day 1 readiness checklist across functions
  • Decision log and issue escalation cadence
  • Cutover-style planning for critical Day 1 changes
  • Cross-workstream dependency tracking
  • RAID management with clear owners and mitigations
  • Change control for scope, timing, and priority shifts
  • Integration dashboards and forecasting
  • Weekly leadership reporting pack
  • “Decisions needed” packaging to speed alignment
  • Benefits model alignment (cost, revenue, capability)
  • Tracking cadence and accountability
  • Integration milestones tied to benefits realization

Common Integration Workstreams We Coordinate

Every deal is different, but typical workstreams include:

  • IT & Systems (apps, infrastructure, security, access, integration, data)
  • Finance (close process, reporting, controls, chart of accounts alignment)
  • HR & People (org design, comms, payroll/benefits, change impacts)
  • Operations (process alignment, service continuity, supplier/vendor transition)
  • Commercial (pricing, contracts, customer communications, GTM alignment)
  • Legal & Compliance (policies, regulatory requirements, documentation)
  • Procurement (vendor consolidation, purchasing policy alignment)

Integration Timelines We Support

Day 1 Readiness (stability + continuity)

Focus: keep operations stable and avoid “surprise outages.”

  • access and identity readiness
  • customer/vendor communications
  • operational continuity plans
  • critical policy alignment and approvals

Day 30 Stabilization (control + momentum)

Focus: establish cadence, visibility, and controlled execution.

  • integrated workstream plan
  • governance rhythm and reporting
  • dependency and risk controls
  • early synergy capture tracking

Day 100 Acceleration (value + integration outcomes)

Focus: consolidate systems/processes and drive measurable benefits.

  • systems rationalization and consolidation roadmap
  • process standardization and operating model alignment
  • benefits realization cadence and accountability

How We Engage

1. Integration Assessment + Action Plan

A rapid evaluation of integration readiness and risk.

Assessment areas:

  • integration plan realism
  • workstream ownership and capacity
  • governance and decision flow
  • dependency and risk visibility
  • Day 1 readiness and critical path gaps
  • synergy tracking readiness

 

Deliverable: a prioritized action plan with quick wins + 30/60/90-day roadmap.

2. Integration Mobilization

Stand up the integration structure, cadence, and controls quickly.

Typical outputs:

  • integration governance model and meeting cadence
  • workstream charters and ownership map
  • integrated plan and dependency tracker
  • executive reporting pack and decision log

3. Ongoing Integration Leadership (as needed)

Hands-on program leadership through stabilization and synergy capture.

What You’ll Receive

Depending on scope:

  • Integration charter and workstream model
  • Integrated integration roadmap (milestones + owners)
  • Day 1 readiness plan and checklist
  • Dependency tracker and RAID management system
  • Executive dashboard + forecasting method
  • Decision log and action tracking
  • Change control approach for integration scope
  • Optional: synergy tracking model and cadence

Why Onset

We keep integration moving while the business keeps running.
M&A work is high-stakes, time-bound, and cross-functional. We bring calm, practical leadership—so teams stay aligned, leadership gets the truth, and integration creates value instead of fatigue.

FAQ

PMI is the coordinated work required after a deal closes to align systems, processes, teams, and operations—so the combined organization achieves stability and delivers expected value.

We build a Day 1 readiness plan with owners, decision gates, dependency visibility, and a risk/issue escalation cadence—similar to cutover planning for mission-critical changes.

Yes. Carve-outs require careful sequencing and dependency control. We can help manage separation workstreams, transition services (TSA) coordination, and cutover readiness.

We define benefits clearly, tie them to specific milestones and owners, and review progress through a structured cadence so benefits realization stays visible and accountable.

Ready to integrate with control and confidence?

Let’s build an integration roadmap that keeps workstreams aligned and turns deal strategy into real outcomes.

Talk to an Integration Lead