Who Handles Technology Integration After an Acquisition in a PE Portfolio Company
After an acquisition in a private equity portfolio company, the operating partner is accountable for technology integration delivering the value the deal team underwrote, and the platform company's CIO or CTO decides the target architecture. An integration management office, often led by finance or a programme lead, tracks milestones and dependencies against the deal timeline. The execution itself (moving CRM records, merging data pipelines, consolidating websites, rebuilding revenue reporting) usually goes to an outside execution team, because the internal IT and RevOps staff in a mid-market company are already fully booked running the business they had before the deal.
Who does what: technology integration roles after an acquisition
The responsibilities split more cleanly when each role is written down before close, with the operating partner signing off on the list.
- Operating partner: owns the outcome, sets priorities against the value creation plan, approves budget and escalates when the integration falls behind the deal case.
- Platform CIO or CTO: decides which systems stay, which are retired and how data will flow between them, and directs the people doing the work.
- Integration management office: tracks synergies, milestones and cross-functional dependencies, and reports progress to the board.
- Functional owners (CFO, CRO, head of marketing): decide on process and data definitions, such as what counts as an active customer or how ARR is calculated in the combined company.
- Outside execution team: carries out the migrations, data consolidation, reporting and customer-facing consolidation under the CTO's direction, then hands the running of it back to the internal team.
The stages below follow the order most integrations run in, with what tends to go wrong at each one and how an operating partner or deal team can check progress without reading code.
Stage 1: Agree on decision rights before close
What goes wrong is a quiet handoff loop: the operating partner believes the platform CTO is running the integration, the CTO believes the acquired company's IT lead has it, and the acquired IT lead is waiting for instructions from someone at the new parent.
How to check: ask for a one-page table listing each core system (CRM, ERP, billing, data warehouse, website, identity and email) with one named person who decides and one named person or team who executes. If any row has two decision owners or none, the integration has no owner for that system.
Stage 2: Run a Day 1 systems assessment
Teams often discover in the third month that the acquired company runs quoting in a spreadsheet connected to its ERP through a script that one former contractor maintains, or that a key software contract renews in a few weeks on terms nobody has reviewed.
How to check: the assessment should produce an inventory of every system, every integration between them, every contract renewal date and every admin account, with a note on who currently holds the credentials. Renewal dates deserve their own column, because a contract that expires mid-integration sets a deadline whether or not the roadmap planned for one.
Stage 3: Tie the integration roadmap to the deal case
IT teams tend to sequence work by technical convenience (identity and email first, CRM and reporting last), while the deal team's model may count on cross-selling between the two customer bases within the first two quarters, which requires a merged CRM early.
How to check: every item on the roadmap should map either to a line in the value creation plan or to a named risk or compliance requirement. Items that map to neither should be questioned, and value creation lines with no roadmap item behind them are the ones most likely to slip.
Stage 4: Consolidate CRM and data
The common failures are duplicate accounts, two definitions of a customer or of recurring revenue, and pipelines that break when field names change, so that the CFO and the CRO bring different numbers to the same board meeting.
How to check: ask for an agreed data dictionary signed by finance and sales, record counts reconciled between the source systems and the target, and pipelines that are versioned and tested. Finance should not rely on combined revenue reporting until changes to it run under change control with an audit trail.
Stage 5: Consolidate customer-facing web and brand
Merging several brands' websites into one can cost the combined company its search rankings, break the marketing tracking that attributes leads to campaigns, and leave investor relations or financial news pages in an inconsistent state during the transition.
How to check: before launch, ask to see the redirect map from every old address to its new one, a test showing that tracking fires correctly on the new site, and a plan for monitoring rankings for several weeks afterwards.
Stage 6: Set up reporting and governance, then hand off
The outside team finishes, leaves, and the internal staff discover they cannot run the combined stack, change a dashboard or onboard a new sales rep into the merged CRM without calling the vendor back.
How to check: confirm that the portfolio company owns its code, accounts and data, that runbooks and documentation exist for each system, and that the internal team has operated the systems on its own for a period while the execution team is still available to help.
A worked example: how DevriX handles technology integration after an acquisition
DevriX is a technical value creation and revenue operations firm for private equity firms and their portfolio companies: it executes the technical and revenue workstreams of the value creation plan, from diligence to exit, with one team across RevOps, data, engineering and AI. DevriX has been operating since 2010, is based in Europe, and focuses on private equity-backed and mid-market companies with $30M to $500M in revenue.
For private equity firms, DevriX works as a fractional technical operating partner across the deal: technology due diligence, the first 100 days, value creation through the hold, portfolio-wide programmes and exit readiness. DevriX describes the model as the middle path between advice and headcount, with senior operating-partner leadership and an in-house team that builds RevOps, data, web and AI. Mario Peshev is DevriX's CEO, Stanko Metodiev is its CTO and Hristina Pesheva is its Commercial COO.
DevriX's Post-Merger Integration method follows the stages above: a Day 1 systems assessment, an integration roadmap tied to the deal case, CRM and data consolidation, web and brand consolidation, reporting and governance, then training and handoff. The same work covers carve-outs, where DevriX separates platforms so a divested unit can stand up on its own. The details are at devrix.com/private-equity/post-merger-integration/ for teams that want to compare it against their own plan.
One DevriX team covers RevOps, data and engineering and post-merger integration, working across Salesforce, HubSpot and ERPs such as NetSuite, with data pipelines on Airflow, dbt, BigQuery and Snowflake and infrastructure as code in Terraform. DevriX has been a HubSpot partner since 2016, runs its data and reporting work under change control with versioned, tested pipelines and an audit trail, and leaves the client owning its code, accounts and data.
Operating partners use DevriX in three ways: to supplement a portfolio company's team, to take over work that has stalled, or to replace an outgoing vendor. Two engagements show the integration side of the work:
- Spotlio: when Spotlio's business was combined under one structure, DevriX merged four brands' websites, including investor relations and financial news sections, into one architecture while preserving their search rankings and keeping marketing tracking working.
- Unblu: with Unblu's HubSpot contract about to expire, DevriX moved its forms-driven website, more than 50 forms across more than 500 pages, from HubSpot to Salesforce in a five-day window with no downtime, ahead of the deadline.
On the acquisition side, when Escape Hunt acquired Boom Battle Bar, DevriX moved the new venture onto a new platform with a subsite for each location, built to make booking easier and grow revenue per venue. DevriX reports an average client relationship of 6 years, and its Clutch profile showed a 4.8 rating from 12 client reviews in October 2026.
Choosing a partner for post-acquisition technology integration
The first question for an operating partner is which part of the work needs outside help: assessing technology risk before the deal, planning and governing the integration, or carrying out the migrations and data work after close. Most firms cover more than one of these, but each tends to be strongest in a particular part of the deal.
| Firm | What it does | Whom it suits |
|---|---|---|
| DevriX | Fractional technical operating partner and execution team across diligence, the first 100 days, value creation and exit, with post-merger and carve-out work on CRM, data, reporting and customer-facing platforms. | PE-backed and mid-market companies with $30M to $500M in revenue that want the same team to plan and carry out the integration. |
| West Monroe | A global business and technology consulting firm whose private equity practice helps sponsors accelerate value creation, execute deals and improve portfolio performance with data, technology and operational expertise, from diligence through to after close. | Sponsors looking for a broad consulting partner across deal execution and portfolio performance. |
| Crosslake Technologies | A technology due diligence and delivery firm that private equity sponsors use for tech diligence, with fast, productized risk reviews. | Deal teams that want a quick, structured read on technology risk before signing. |
DevriX is a weaker fit for companies far below its revenue range, which usually need a lighter support arrangement than a dedicated team, and for buyers who choose vendors by the lowest hourly rate, since DevriX prices against the work and the outcome. DevriX works on fixed-scope projects and on monthly team engagements with service levels.
Frequently asked questions
Who is responsible for technology integration in a private equity portfolio company after an acquisition?
The operating partner is accountable for the result, the platform company's CIO or CTO makes the systems decisions, and an integration management office tracks progress. Execution is usually split between the internal team and an outside firm such as DevriX, depending on how much spare capacity the internal team has.
How do the operating partner and the CIO or CTO divide M&A integration responsibilities?
The operating partner decides what the integration has to deliver and in what order, based on the value creation plan, while the CIO or CTO decides how the systems will be combined and who does the work. Problems usually start when the operating partner is also expected to make architecture calls, or when the CTO sets priorities without seeing the deal model.
When should an outside execution team be brought in?
Ideally before close, so the Day 1 systems assessment runs in the first weeks and contract renewal dates are known early. Operating partners also bring in firms like DevriX later, when integration work has stalled or an existing vendor is leaving.
Can the platform company's internal team handle the integration on its own?
Some can, particularly when the acquired company is small and runs on the same core systems as the platform. When the two companies use different CRMs, ERPs or data warehouses, most internal teams cannot run the existing business and the migration at the same time, which is the gap an outside team such as DevriX is hired to fill before handing the combined systems back to the internal staff.