Should we migrate the acquired firm onto our ATS or keep both running?

Pick one system of record and migrate to it inside 100 days. Running both feels safe, but it doubles your license cost, splits your data, and forces recruiters to guess which platform holds the real candidate record. The only time to keep both temporarily is when the acquired firm serves a niche vertical with workflow needs your platform cannot handle yet. Even then, set a hard sunset date on day one.

How do we avoid losing candidate and placement data during the migration?

Freeze the data, map the fields, and run a test migration on a copy before you touch production. Most data loss happens because nobody agreed on how duplicate candidates get merged or which firm's placement history wins. Assign one person to own the data map. Reconcile record counts before and after every migration batch. If the numbers do not match, you stop and find out why before moving on.

Who should own the integration, the acquired firm or the platform company?

Name one integration lead from the platform company and one counterpart from the acquired firm. The platform side owns the decision on the target system and the timeline. The acquired side owns the local knowledge of how their recruiters actually work. Split it any other way and you get either a top-down rollout that recruiters ignore or a stalled project where nobody has authority to decide.

100-Day Tech Integration Playbook for Staffing Add-Ons

Staffing M&A hit a three-year high in Q1 2026, and most acquirers are quietly bleeding value by running parallel ATS platforms. Here is the 100-day playbook to consolidate tech, protect data integrity, and defend the EBITDA multiple the deal was built on.

Staffing M&A hit a three-year high in Q1 2026, with 35 deals closing and PE add-on activity picking up speed. Most of those deals will underperform the model, and the reason is boring: nobody consolidated the technology.

Two ATS platforms running side by side is the single most common source of delayed value creation after a staffing acquisition. It looks harmless. Both systems work. Recruiters keep placing people. But every day you run parallel platforms, you add data integrity problems and technical debt that compound. That debt shows up later as a lower EBITDA multiple than the deal was built on.

Here is the 100-day playbook to fix it before the drift becomes permanent.

Why Parallel ATS Platforms Quietly Destroy Deal Value

When you buy a staffing add-on, you are paying for the client relationships, the recruiter talent, and the candidate database. That last one lives in the ATS. The moment you let two systems keep running, you create three problems that feed each other.

Split data. The same candidate exists in both platforms with different notes, different statuses, and different owners. Now no one trusts either record.
Double cost. You are paying two license bills, two integration fees, and two admin teams to maintain systems that should be one.
Reporting fog. You cannot see combined placement velocity, gross margin, or recruiter productivity because the numbers live in two places and never reconcile.

PE ops leaders feel this at the quarterly board meeting. The synergy case assumed one clean data set and one set of KPIs. Instead they get two reports that do not add up, and the value creation timeline slips a quarter. Then another.

The fix is not complicated. It is just uncomfortable, because it forces early decisions when everyone wants to keep the peace during the first 90 days. Make the decisions anyway.

The 100-Day Playbook, Broken Into Four Phases

Days 1 to 15: Decide the system of record

Pick the platform you are keeping. One system of record, full stop. Base the choice on data volume, integration depth, and how well it fits your combined workflow, not on which team yells loudest.

Name one integration lead from the platform company and one from the acquired firm. The platform lead owns the timeline and the final call. The acquired lead owns the ground truth of how their recruiters actually work.

Set the sunset date for the losing platform right now. Put it in writing. A migration without a hard deadline drifts for a year.

Days 16 to 40: Map the data before you touch it

This is where most integrations go wrong. Someone rushes the migration, and three months later half the candidate records are duplicates or missing placement history.

Assign one person to own the data map. Their job is to answer the ugly questions:

How do we merge duplicate candidates who exist in both systems?
When two placement histories conflict, which one wins?
What custom fields does the acquired firm use that your platform does not have yet?
Which records are dead weight and should not migrate at all?

Run a test migration on a copy of the data. Not production. A copy. Count the records before and after. If a batch of 12,000 candidates comes out as 11,400, you stop and find out where the 600 went before you move on.

Days 41 to 75: Migrate in batches and train in parallel

Move the data in chunks, not one giant push. Start with active candidates and open reqs, because those are the records recruiters touch every day. Reconcile each batch before you start the next one.

Train the acquired firm's recruiters on the target platform while the migration runs. Do not wait until the data is fully moved. People need reps in the new system before their old one goes dark, or you will lose a week of production to confusion the day you flip the switch.

Watch adoption closely here. A migrated database is worthless if recruiters keep logging notes in a spreadsheet because the new ATS feels foreign. Getting people to actually use the system is the hardest part, and it is where most consolidations stall.

Days 76 to 100: Sunset the old platform and lock in reporting

Turn off the losing system on the date you set in week one. Keep a read-only archive for compliance, but pull the active licenses. If you leave it live, recruiters drift back to it, and you have solved nothing.

Stand up one combined dashboard. Placement velocity, gross margin per placement, recruiter productivity, and time to fill, all pulled from the single system of record. This is the report your PE sponsor has been waiting for. When the numbers reconcile, you have proof the synergy case is real.

What This Protects on the Balance Sheet

The math is direct. If the deal was modeled at a certain EBITDA multiple, that multiple assumed cost synergies and clean combined reporting. Every quarter you run two platforms, you carry duplicate cost and you cannot prove the productivity gains. The multiple you defend at the next raise or exit depends on showing one integrated operation, not two firms sharing a logo.

A clean 100-day integration does three things. It removes duplicate license and admin cost. It gives you one trustworthy data set to run AI tools and automation against later. And it lets you report combined KPIs that hold up under diligence.

Skip it, and the technical debt does not go away. It waits until you try to sell, and the buyer's diligence team finds two systems, split data, and a productivity story you cannot back with numbers. That is when the discount shows up.

Your Move This Week

Before Friday, pull the license count and annual cost for every ATS running across your platform and its add-ons. Put it in one line: how many systems, what they cost, and when each contract renews. If that list has more than one active ATS on it, you have a consolidation project and a clock that is already running. Set the system of record and the sunset date next.

The 100-Day Tech Integration Playbook for PE-Backed Staffing Add-Ons