Post-merger and integration events trusted by

Post-merger integration event agency

A merger does not combine two workforces. It puts them in one room, still carrying different histories, loyalties and reasons to be sceptical. We design and deliver post-merger and post-acquisition integration events for UK businesses, built around one question: what has to be true for these two companies to start working as one.
An attendee speaking into a microphone among a smiling, packed conference audience
Two colleagues embracing on the dance floor as a live band performs at a company party
A guest dancing with hands raised among colleagues holding cocktails at a summer party

The deal closes on paper. The value lands, or does not, in the people. Two companies become one workforce overnight, and engagement is most at risk in exactly the moment the integration depends on it. People are watching for what they stand to lose, who decides now, and whether the company they joined still exists.

A post-merger event that works starts somewhere else. Not with the announcement, but with what each side currently believes, what they think they are losing, and what has to be true for them to back the combined business rather than wait it out.

The announcement looks the same. What happens in the months after is not.

Businesses living through a merger or acquisition who treat the first shared moment as the start of the integration, not an afterthought to it. We work with HR Integration Leads, incoming and outgoing CPOs, Chiefs of Staff, and the teams carrying the integration brief.

We are built for the moment two workforces meet for the first time, where the acquiring and acquired sides are in one room together and have to leave with a reason to move in the same direction, not just an updated reporting line. This is our home territory: the day two companies start to feel like one.

Post-merger integration events

The first shared moment after a merger, built to close the trust gap rather than just brief the new structure.

Post-acquisition integration moments

The day an acquired team meets the business that bought it, designed so people leave with a reason to back the combined company.

Merger announcements

The announcement moment itself, often planned under NDA before the deal is public, with discretion built into the brief.

M&A all-hands

The company-wide moments that follow the deal and keep the integration on track across the months after.

The brand wasn't announced. It was lived.

A brand launch built as a festival - moving 300 post-merger employees from keynote to competitive to celebration in one day.

See how it landed

Nine countries. One room. First time.

Three phases - alignment, collaboration, celebration - built so 350 colleagues from nine countries could meet for the first time.

See how it landed

Not just a party. A reason to be in the room.

For a remote workforce, a winter party isn't a night out. It's the one day the company actually becomes a room.

See how it landed
Confetti falling over the crowd as two hosts speak on the Perkbox festival main stage
Branded banners above guests mingling under bunting and festoon lights at Nextival 2025
A vocal group performing under green and pink stage lighting at a seated evening event
Our approach

Our approach to integration moments

Start with the trust deficit

We define what each side currently believes, what they think they stand to lose, and what has to be true for them to back the combined business. Everything is designed back from that.

Shape the message

The deal rationale, the new structure and the shared direction are built into one narrative the room can follow, not a synergy deck that talks at people who are quietly working out their own position.

Design the room

Venue, stage, production and content are built around the integration, including who speaks, in what order, and the space left for the questions nobody wants to ask out loud.

Own the delivery

Budgets, suppliers, running order and leadership coaching are handled throughout, much of it under NDA before the deal is public, so your team can be in the room rather than running it.

Carry it past the day

We think beyond the first moment, so the integration keeps its momentum across the moments that follow, not just the week of the announcement.

What People Say

In their words
Start the conversation

Tell us what your moment needs to do

Living through a merger or acquisition? Tell us about the deal and the team: the rough timing, the combined headcount, and what the first shared moment has to achieve. We'll come back within one working day with an initial read on the brief and how we'd approach it.
Send Your Brief

The questions worth asking

What's different about how herewith runs a post-merger integration event?

Most agencies start with the venue and the announcement. We start with the trust deficit: what each side believes, what they think they are losing, and what has to be true for them to back the combined business. The room is built back from that.

What kinds of M&A events do you handle?

Post-merger integration events, post-acquisition integration moments, merger announcements and M&A all-hands events. The first time two workforces meet, and the moments after it that keep the integration on track.

How much does a post-merger integration event cost?

Cost depends on scale, venue, production and audience size. Once we know what the moment needs to achieve and the combined headcount, we can give a directional read on what to plan for.

When should we start planning the integration event?

As early as the deal allows, often while the announcement is still confidential. The strongest briefs reach us before the structure is finalised and the room is booked. We are used to starting under NDA, before anything is public.

What if the deal is confidential?

Much of this work is. We are used to working under NDA, on deals that have not been announced, with information shared on a need-to-know basis. Discretion is part of the brief. We plan the moment around what can and cannot be said, and when.

Do you write the integration strategy or the deal message?

No. The integration plan and the message belong to leadership and the business. We design the moment that helps the message land, the leaders come across credibly, and two workforces leave with a reason to move together.