Master Add-On Acquisitions: Proven Lessons from 35+ Deals Closed

Seasoned operators share their proven add-on acquisition strategies.
Updated: August 14, 2025
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Consero’s Chris Hartenstein brought together industry experts to discuss best practices, challenges, and strategies for successfully negotiating, closing, and integrating add-on acquisitions.

The panelists, each offering unique perspectives based on their extensive experience in private equity and M&A, include:

Client & Company Role & Experience
Trey Chambers
CFO, IDERA (B2B software tools)
17 acquisitions in 4.5 years; 3 business units (Database Tools, Developer Tools, DevOps Tools); 3 major PE owners (TA Associates, HGGC, Partners Group)
Elizabeth “Scottie” Wardell
Managing Partner & Co-Founder, Integrity Growth Partners
PE; lower-middle-market software & tech-enabled services
Steve Isom
CFO, Bloomerang (donor management SaaS)
Formerly Flywheel (managed WordPress hosting), where he implemented Consero in 2018 and exited in 2019

Finding & Vetting the Right Targets

Before price and paperwork, the winners start with fit and clarity of thesis. 

The panelists emphasize the importance of preparation, due diligence, and clear communication to streamline negotiations and close deals efficiently.

  • Define the strategic fit. Don’t chase multiple expansion alone; the business must fit your platform thesis and operating model.
  • Build an always-on pipeline. Maintain an in-house M&A pipeline and ongoing dialogs across your space.
  • Run a “quick skinny model.” Build a fast, high-level model from initial target data to scope diligence and pressure-test revenue/EBITDA early.
  • Centralize seller communications. Funnel questions through a single point to avoid overwhelming the seller and to keep narratives consistent.
  • Set a fast close target. Aim for ~60 days from LOI to close with disciplined project management and owners on each workstream.
Our goal is to get deals done in 60 days. We start with a ‘quick skinny model,’ assign owners, and track everything from cash management to GL and revenue pressure-tests.

Diligence: Red Flags & What to Test

Beyond the numbers, watch for human signals and operational tells.

  • Inconsistent narratives. If executives contradict each other or “cut each other off,” expect coordination issues post-close.
  • Data latency & quality. Slow response to basic requests, conflicting system outputs, or pushback on reasonable asks signal process gaps.
  • Small ≠ simple. Smaller targets can take as much (or more) time due to lower sophistication and missing processes.
  • Prioritize finance readiness. Weak cash controls, GL chaos, or missing reconciliations will drag integration and distort your thesis.
When you ask a question, can they answer quickly or does it take days?… Different systems giving different information is a red flag.

Integration: Rip the Band-Aid Off

Successful integration requires swift action and clear communication. Speed reduces uncertainty; clarity reduces churn.

The panelists advocated for early and decisive integration, especially of finance and accounting functions, to realize synergies and maintain momentum:

  • Integrate early, especially finance. Get the finance and accounting stack on your rails immediately post-close to stabilize reporting and cash.
  • Plan for turnover. Some target leaders won’t want new roles; have backup plans for critical positions.
  • Be transparent about roles. Sort people into three buckets (keep, transitional, not retained) and communicate clearly and respectfully.
  • Lead with change management. Create excitement for the future state, acknowledge fears, and be explicit about why changes are needed.
  • IDERA integrates where it makes sense but keeps acquisitions standalone for the first year to track performance against the model.
Rip the band-aid early and get to the future, so we can all get to the future now.

Finance as the Integration Quarterback

A strong finance engine turns thesis into results.

  • Own the integration tracker. Cover cash management, GL design, revenue recognition, systems, and risk items; assign named owners.
  • Set the cadence. Stand up weekly (or more frequent) cross-functional integration calls with decisions and follow-ups documented.
  • Outsourcing. Leverage outsourcing and contract talent for flexibility and access to global expertise, but be mindful of managerial oversight.
  • Stay present. Executive attendance keeps priority high,
  • Measure what you bought. Keep acquisitions partially standalone for Year 1 to track P&L vs. model and verify synergy realization.
💡
Tip:

Consero helps clients integrate acquisitions in as little as 30 days using skilled finance teams and pre-integrated software stacks.

“I’m on every one of those calls—not because I add value every time, but because it keeps everyone focused and the integration engine running.”

Case Study: Flywheel’s 30-Day Close

Preparation and consistency compress timelines dramatically. With Steve Isom already partnered with Consero at Flywheel when an unsolicited inbound offer from WP Engine arrived, preparation plus a single source of truth compressed the timeline dramatically.

  • From first meeting to close: ~30 days.
  • A recent equity raise meant materials were current, consistent, and organized.
  • Consero was already embedded, so investor inquiries were handled as BAU—no extra hours/fees and responses within 24 hours—which built buyer confidence early.
  • WP Engine engaged a Big Four firm for tax/finance/legal diligence, and all workstreams routed directly to Consero, avoiding conflicting system outputs.
  • The team could tell a cohesive story: they’d recognized prior gaps in systems/processes and had already remediated them with Consero.
Eliminate M&A Headaches

Get the playbook we use to help hundreds of businesses seamlessly integrate acquisitions.

Schedule Consultation

“From the first meeting to closing was 30 days. Having materials presented nicely and consistently made all the difference.”

Success Metrics, Cadence & Accountability

Define “done,” then inspect what you expect.

  • Lock the deal model. Document purchase model, QofE output, and the go-forward operating model; make it the scoreboard.
  • Set Year-1 milestones. Establish 10 or so metrics/milestones for the acquired business and report against them on a clear cadence.
  • Keep eyes on the thesis. Regularly test whether integration progress supports the original strategic intent.
In the first year, these are the ten metrics we expect the acquired business to hit—and we report against them.

Deal Structure & Tax Considerations

Choose asset vs. stock structure with both sides’ goals in view.

  • No one-size-fits-all. Seller tax profile, risk tolerance, and timeline shape structure.
  • Double-tax awareness. Pure asset deals can be a non-starter for some sellers given double taxation concerns.
  • Align early. Use structure to align incentives and keep momentum.
If you’re just going to buy the assets and I’m going to get double-taxed, that doesn’t make sense—I’ll find another buyer.

Build vs. Buy Talent: An Outsourcing Playbook

Contract talent expands capacity—if managed intentionally.

  • Leverage contractors for flexibility. Global talent markets (e.g., Consero, Upwork) can fill specialized or surge needs.
  • Protect mission-critical roles. Keep must-be-on-call and continuity-critical roles in-house.
  • Mind the manager span. Over-proliferation of contractors without the right management creates chaos.
  • Don’t label second-class citizens. Treat contractors and employees as one team focused on outcomes.
We outsource so much we really don’t think about people as ‘oh well, he’s just a contractor’ or ‘she’s just an employee.’ We don’t think about it that way at all.

Big-Picture Filters for Every Add-On

Based on the panel’s combined 35+ deals (18 integrations last year + 17 acquisitions over 4.5 years), keep these north stars front and center:

Strategic fit > spreadsheet optics: Don’t “buy for multiples.”

Speed with discipline: Aim for ~60 days to close; 30 days is possible with preparation.

Finance first: Stabilize cash, close, and reporting immediately.

People plan: Communicate roles, plan for turnover, and lead change.

Prove it: Track Year-1 results against the model; keep some standalone P&L to verify results.

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