Your Client Goes Through M&A - The Opportunity and the Risk

Two meetings, two weeks apart. Both with customers sitting in the middle of an M&A deal.

In the first, my stakeholder was calm. Her company had just acquired a competitor, and she assumed our engagement would stretch to cover the combined business. The best outcome I could ask for.

In the second, my stakeholder was anything but calm. His company had been acquired, and he had no idea whether he’d still have a seat at the table in three months, let alone whether he’d be the one signing our renewal.

Same trigger. Completely different stakes. And in both rooms, the same uncomfortable fact sat quietly in the corner:

There’s another vendor on the other side of that deal, and they’re not going to sit still.

M&A is one of the few moments where a customer relationship can double or disappear inside a short window. A few hard lessons taught me not to treat it as background noise, something Legal and the exec team handle while CS waits for instructions.

That’s a mistake.

By the time instructions arrive, the other vendor has usually met the new stakeholders already and started making their own move.

Heads Up from your client

Before any playbook kicks in, ask yourself one thing: would you have known this deal was coming?

If your relationship is transactional, ticket-driven, QBR-only, you’ll hear about the acquisition the way everyone else does. A press release, or an all-hands email forwarded to you three days late. If the relationship is grounded, you get a heads-up. Not details, usually not even confirmation, but enough of a signal to prepare instead of reacting.

The second question matters just as much, and it’s personal rather than commercial: is this deal a risk or an opportunity for the people you work with?

A stakeholder who’s about to be promoted behaves differently from one who’s quietly refreshing their resume. Sometimes they don’t know themselves yet, because their own future has gone vague.

When your client acquires

The instinct here is comfortable and wrong at the same time:

our client just got bigger, so our engagement gets bigger too.

Sometimes that holds. Often it doesn’t, because the leadership running the combined business isn’t always the leadership you’ve been working with. I’ve seen the CIO of the acquired company end up more influential in the merged org than the CIO of the acquirer, and a two-year relationship suddenly counts for less than you’d expect.

A few moves matter here, and none of them are complicated.

Find out where your champion actually stands in the new structure. If they’re handing responsibility to someone else, ask them for the introduction directly. Don’t wait for it to happen organically. It won’t be a priority in the handover.

Learn the acquired company before anyone asks you to. Same market, similar business, likely similar needs. Walking into a conversation already understanding their competitive environment buys you credibility that’s hard to earn any other way in these circumstances.

Understand the real timeline. Some acquisitions keep both organizations running independently for a year or more before addressing technology or vendors. Others move within weeks. Learn which situation you’re in and who truly owns decisions about the merged team’s tools and services.

Build your competitive comparison before you need it. Not after the other vendor sends theirs. Be specific about the transition path and about what gets easier for them by staying with you.

Ask for a seat in front of the combined team. An executive review, a working session, anything that can help you put your agenda in the room.

Test the water on scope, gently. The earlier your client sees the cost savings of consolidating onto one vendor, yours rather than the other side, the faster that conversation moves. Bring sales in once you sense real appetite, not before.

When your client is acquired

This is the harder side, and it deserves more urgency than most CS teams give it. Even when your stakeholder tells you the engagement is safe, treat it internally as at risk and plan as though you might lose the account.

That isn’t pessimism. It’s a reality check, and it produces accurate planning.

Start by researching the acquiring company the way you’d research a brand-new prospect. Size, market position, product portfolio, and whatever public signal exists about how they handle post-merger integration. Some acquirers merge teams immediately. Others let things run separately for years.

Then work your existing relationships to find out where your stakeholders really stand. Are they at risk? Being promoted? Do they have the standing and the energy to advocate for you right now, or are they focused on their own survival? You’ll only get this from people who trust you, which is one more reason the relationship building has to happen before the deal, not after.

If consolidation looks likely, ask your supportive stakeholders for introductions to their new counterparts, and treat those people exactly like a first meeting with a brand-new client. Come with questions that make them think. Questions that surface a need for what you do that they hadn’t fully considered.

Once you know who the real decision makers are, get in front of them early and bring something specific. Insights, a recommendation, a transition plan you’ve already thought through, not a generic capabilities deck. Find out whether there’s a formal vendor evaluation, an RFP, or whether an unsolicited proposal is even on the table. Either way, this is the moment to involve sales. Not after the decision is already leaning one way.

The part people miss

Being the acquirer’s incumbent doesn’t guarantee you keep the business. Being on the acquired side doesn’t guarantee you lose it. The outcome comes down to whether you understood the org chart, the timeline, and the personal stakes before the other vendor did.

M&A doesn’t change what makes a CS relationship strong. It just compresses the timeline for proving it.

The next time a client mentions an acquisition, in either direction, don’t wait for the account plan to catch up. Start asking these questions the same week.

Practitioner Tip for TheCSCycle Readers

Run an M&A exposure pass across your book of business before any deal is announced.

Take your top accounts and score each one on two things: how likely they are to be part of an acquisition in the next 12 months (PE ownership, market consolidation, public talk about growth or expansion), and how many real stakeholders you’d still have if your champion left tomorrow.

High likelihood plus single-threaded coverage is your actual M&A risk, not the deal you haven’t heard about yet.

Fix the coverage gap now, while there’s no urgency and every introduction is easy to ask for.