Phase 5 of a Nonprofit Merger: Post-Merger Evaluation, Transitioning to "Business as Usual"

Christophe Poirrier
Aug 14, 2025By Christophe Poirrier

The post-merger phase is where the newly combined organization shifts from active integration work to ongoing operations. For executive directors and board members, this stage is about evaluating the success of the merger, refining what is not working, and reestablishing a steady rhythm of “business as usual.”

There is no single date when this phase begins or ends, as integration activities often overlap with day-to-day operations. However, we recommend formally taking stock of progress at least at the 6-, 12-, and 18-month marks after the legal merger closes. These checkpoints provide structured opportunities to measure results, identify lingering issues, and make course corrections before they become entrenched problems.

While the legal merger and initial integration may be complete, this is the point where the organization should prove the value of the merger to its staff, funders, donors, community, and program participants. Post-merger evaluation ensures that anticipated benefits, such as expanded reach, stronger financial stability, improved program quality, or deeper community trust, are being realized. 

In some cases, mergers are initiated in response to an urgent crisis, such as sudden funding loss or leadership turnover. In these situations, the original success metrics may no longer be relevant, and evaluation should instead focus on how well the merged organization is stabilizing operations and meeting current needs. Regardless of the starting point, this stage creates a feedback loop so the organization can adjust strategies, improve systems, and sustain donor and community confidence over the long term.

At Two Five One, we guide organizations through nonprofit merger exploration by combining nonprofit expertise with business strategy, M&A, fundraising, and organizational design experience. We help determine whether a merger aligns with your mission, funding realities, and long-term strategy before you commit to formal due diligence.

Shortcut - Links to other nonprofit merger phases:

Phase 1: The Exploration Stage
Phase 2: Due Diligence and Strategic Planning
Phase 3: Integration Planning (or Transition Planning)
Phase 4: Implementation (or Transition)
Phase 5: Transition to "Business as Usual" 

Key Activities in the Post-Merger Evaluation Stage

The most effective post-merger processes combine formal evaluation with ongoing monitoring, ensuring the organization continues to learn and improve.

1. Measure Against the Success Indicators Set During Integration Planning

Your integration plan should have included measurable goals. Now is the time to check progress.

  • Compare actual results to the short-term, medium-term, and long-term benchmarks established in Phase 3.
  • Assess operational outcomes (e.g., system integrations, staff retention, fundraising revenue), mission-driven outcomes (e.g., increased program reach, quality, and outcomes), and community perception.
  • Share results with your board, funders, and community partners to reinforce transparency and accountability.

2. Conduct a Cultural and Community Integration Check-In

Mergers are as much about people and relationships as they are about systems. The organization and its staff just underwent a significant moment of change. Checking in with the team and other stakeholders from a cultural standpoint is critical.

  • Gather feedback from staff, leadership, and volunteers to identify cultural strengths and areas of tension.
  • Seek direct input from program participants, funders, and community stakeholders to understand their perception of the merged organization’s value and responsiveness.
  • Use surveys, listening sessions, and advisory groups to capture diverse perspectives.

3. Review Fundraising, Funder Confidence, and Donor Retention Trends

Donors and funders are watching closely in the first year after a merger. By this stage, you should have sufficient anecdotal and "hard" data to take an an official pulse.

  • Track donor retention rates, major gift commitments, grant renewals, and any changes in funder sentiment.
  • Evaluate whether joint fundraising strategies are resonating with donors and reinforcing the merged mission.
  • Share impact stories that connect fundraising results to tangible program and community benefits.

4. Evaluate Organizational Design, Program Delivery, and Operations

The new nonprofit org design may need fine-tuning once it’s put into practice.

  • Assess leadership structure, decision-making processes, and role clarity.
  • Review whether programs are being delivered as promised, meeting quality standards, and reaching intended audiences.
  • Ensure operational processes are supporting, not hindering, program delivery and fundraising efforts.

5. Prepare a Post-Merger Evaluation Report

Documenting lessons learned is critical for accountability and continuous improvement.

  • Summarize successes, challenges, and recommended next steps.
  • Include financial, operational, cultural, programmatic, and community feedback.
  • Share an executive summary with staff, board members, funders, and community stakeholders to close the loop on the merger process.

Decisions to Make in the Post-Merger Stage

While most merger related decisions were likely made earlier, the post-merger stage still requires thoughtful choices:

  • Which integration-related committees or task forces should continue, and which can sunset?
  • How will ongoing performance monitoring (financial, programmatic, and community engagement) be handled moving forward?
  • Are there areas where further investment is needed to fully realize the merger’s benefits?
  • How will the organization communicate that it is “back to business as usual” while still honoring the merger journey?
  • When should we refresh our strategic plan?

Recommendations for a Strong Post-Merger Evaluation Process

A thoughtful, structured evaluation process ensures the merger delivers on its promise and keeps stakeholders engaged over the long term.

  • Schedule Formal Checkpoints - Commit to structured evaluations at 6, 12, and 18 months after the legal close. These should include progress reviews for programs, finances, fundraising, staff retention, and community relationships.
  • Involve Diverse Stakeholders - Engage board members, senior staff, program leads, and funders in these reviews. Incorporating the voice of the community and program participants provides a more accurate picture of impact.
  • Track Against Pre-Merger Goals - Compare outcomes to the goals and success indicators established during integration planning. This creates a clear standard for measuring whether the merger is achieving its intended results.
  • Maintain Donor and Funder Engagement - Share evaluation findings with donors and funders, highlighting early wins and addressing challenges transparently. This keeps them invested in the merged organization’s success.
  • Review the Merger Budget - Revisit the budget allocated for merger-related activities to determine whether funds were used effectively, whether additional resources are needed for lingering integration tasks, and what can be learned for future initiatives.
  • Document Lessons Learned - Record successes, missteps, and process improvements. These insights not only strengthen future operations but also position your organization as a resource for peers considering a merger. And who knows, you may explore another merger.
  • Transition Back to “Business as Usual” - Once major integration activities are complete, formally shift focus to ongoing strategy and operations. This transition should be intentional, ensuring staff and stakeholders know the organization is moving forward in a stable, sustainable way.

Risks in the Post-Merger Stage

Some organizations underestimate the importance of post-merger evaluation, which can create avoidable problems:

  • Donor attrition if funders feel out of the loop or perceive instability.
  • Program underperformance if merged operations do not improve or sustain service delivery.
  • Staff disengagement if cultural and community integration challenges go unaddressed.
  • Loss of community trust if beneficiary voices are not actively included in evaluation.
  • Operational inefficiencies if the nonprofit org design is not adjusted based on real-world experience.

Transitioning to “Business as Usual”

The ultimate goal of Phase 5 is to integrate the merger’s changes into the normal rhythm of organizational life. This means:

  • Reducing reliance on special integration meetings and processes.
  • Embedding new systems, policies, and cultural norms into daily operations.
  • Ensuring programs are stable, high-quality, and responsive to community needs.
  • Maintaining donor and funder engagement as part of regular fundraising activities, not just “merger updates.”
  • Ensuring leadership’s focus is balanced between sustaining merger outcomes and pursuing new opportunities.

How Two Five One Consulting Supports Post-Merger Success

At Two Five One, we bring nonprofit leadership experience, business M&A expertise, fundraising strategy, and nonprofit org design insights to help organizations evaluate and refine their post-merger operations. We work with executive directors, boards, senior teams, and community partners to measure success, address emerging challenges, and ensure that the merged entity delivers on its mission. 

Our experience in mergers spans guiding nonprofit leaders through all stages of nonprofit M&A, as well as leading merger exploration, due diligence, planning, and implementation phases as a business leader at Accenture M&A and Vanguard

While we do not provide legal or tax advice, we work closely with experienced attorneys and CPAs to ensure all angles are covered. We are happy to introduce you to some trusted resources in those areas of expertise.

Phase 5 – Post-Merger Evaluation and Transition to Business as Usual FAQs

1. Why is post-merger evaluation important for nonprofits?

It ensures the merger delivers on its promises: stronger programs, better fundraising results, improved operations, and sustained community trust. Evaluation also identifies areas for improvement.

2. How do we measure the success of a nonprofit merger?

Measure against the success indicators set during integration planning. Track program reach and quality, donor retention and growth, operational efficiency, cultural integration, and community feedback.

3. How do we include community voices in post-merger evaluation?

Gather input from program participants, community leaders, and partners through surveys, listening sessions, and advisory groups. Ensure their feedback is reflected in decisions about future programs and services.

4. How can we reassure donors and funders after a merger?

Report on progress regularly, share impact stories, and link fundraising outcomes directly to program improvements and community benefits. Transparency builds confidence and encourages continued support.

5. When do we know it’s time to return to “business as usual”?

Once systems are integrated, programs are stable, cultural and community integration is strong, and donor engagement is consistent, you can reduce reliance on special integration structures and operate as a single, unified organization.