Post-Merger Integration Consulting

Post Merger Integration

Creating a Seamless Transition for Long-Term Success

Post-merger integration, often called M&A integration, is the work of combining two companies’ operations, finance functions, systems and teams after a deal closes. WG Consulting helps private equity sponsors and acquiring companies capture the value they paid for by planning Day 1, running a 100-day plan, combining finance operations and tracking savings against the deal model.

Read The Most Overlooked Phase of M&A: Integration.

Our Services

Developing an Integration Strategy

We begin by assessing operational, financial, and cultural factors to outline a clear path forward. Our approach identifies key performance goals and addresses potential barriers, providing your organization with a robust roadmap for a successful integration.

Aligning Processes and Systems

WG Consulting supports the consolidation of vital functions—from finance and operations to technology and human resources. Through coordinated planning and phased implementation, we reduce duplication, promote consistency, and enable teams to work effectively toward common objectives.

Managing Cultural and Organizational Change

Successful post-merger integration requires balancing the unique strengths and cultures of both entities. Our change management support involves clear communication, stakeholder engagement, and structured onboarding, ensuring employees understand their roles and embrace a unified vision.

Building Organizational Synergies

By identifying overlapping capabilities, streamlining processes, and optimizing resource allocation, we help organizations capture the full value of the merger or acquisition. This disciplined focus on synergy realization enables meaningful cost savings and improved operational performance.

How We Integrate Finance and Operations

Day 1 readiness. We make sure the combined company can pay employees and vendors, collect cash, close the books and report from the first day after close.

The 100-day plan. We set integration priorities, owners and milestones for the first 100 days, and track progress weekly.

Combining finance operations. We align the close calendar, map the two charts of accounts into one, harmonize accounting policies and build combined reporting for leadership, lenders and investors.

Consolidating systems. We plan and manage the move to shared ERP, payroll and reporting systems, sequencing changes to protect day-to-day operations.

Tracking savings. We measure the cost savings and revenue gains the deal was expected to deliver, so leaders can see what has been achieved and what still needs attention.

Frequently Asked Questions

What is post-merger integration?

Post-merger integration is the process of combining two companies after a merger or acquisition, including their operations, finance functions, systems, policies and teams, so the combined business delivers the value expected from the deal.

What belongs in a 100-day integration plan?

A 100-day plan sets out the priorities, owners and milestones for the first months after close. It usually covers Day 1 essentials, leadership and organization decisions, finance and reporting integration, systems, customer and employee communication, and tracking of expected savings.

What’s the most overlooked phase of M&A integration?

Integration itself. Leadership teams often spend months on deal strategy and negotiations, then treat the work after close as a minor task. But integration is where the deal’s value is either realized or lost. Read our article on the most overlooked phase of M&A.

How do you combine two finance teams and their systems?

We start by aligning the close calendar, chart of accounts and accounting policies so the combined company can report consistently, then plan the move to shared systems and define roles in the combined finance team.

Why Partner with WG Consulting?

Our experience with mergers, acquisitions, and complex integrations enables us to deliver impartial, hands-on guidance tailored to your specific requirements. By combining detailed planning, operational alignment, and consistent oversight, WG Consulting positions your organization for long-term success and sustained value creation.

Take the Next Step

Contact WG Consulting to learn more about our Post Merger Integration services. Our focus on strategic alignment, process consolidation, and cultural harmonization can help your newly combined organization move forward with clarity and confidence.