M&A advisory for technology companies. Sell well. Acquire right. Build lasting value.

Whether you are preparing to exit, looking to acquire, or navigating an offer you did not expect — we run the process from first conversation to final signature. No handoff to a junior team. No generic playbook. Just focused, experienced advisory in the sectors we know best.

20+ closed tech transactions Software, SaaS & IT services specialists 600,000-company acquisition database Marcin & Filip, start to finish

Every M&A situation is different. We adapt to yours.

We work with a focused set of clients: founders building towards an exit, companies with a clear acquisition agenda, and investors who need the right deal, not just any deal. Here is where we typically start.

You are thinking about selling your company

You built the business. The decision to sell it is not straightforward — and neither is the process. Getting the valuation right, finding buyers who will actually pay for what you have built, and negotiating without giving ground in the wrong places: that is what we are here for.

Sell-side advisory

You want to acquire a company

Finding the right target takes more than a search. The companies best suited to your strategy are often not on the market and have never been approached. We do the work to identify, qualify, and initiate those conversations — and we stay in the process until the deal is closed.

Buy-side advisory

Someone just made you an offer

When a buyer approaches you directly, they are not doing you a favour — they have done their homework and framed the conversation to their advantage. Before you engage, it is worth understanding what the business is actually worth and what the terms on the table really mean for you.

Talk to us first

You are a PE fund or serial acquirer

You need a steady pipeline, not a one-time target list. We run acquisition searches in parallel across multiple mandates, surface companies that match your thesis before they reach the open market, and stay involved through negotiation and close — not just the research phase.

Buy-side for investors

Our M&A advisory services

We focus on technology companies — software, SaaS, and IT services — because deep sector knowledge produces better outcomes than a generalist approach. New to this? Here’s what an M&A advisor does and how to choose one.

Sell-side advisory

Selling your company

From valuation through to the final transfer of funds, we run the sell-side process in full. That includes building the equity story, identifying the right buyers globally, creating the conditions for competitive tension, and negotiating every stage — including due diligence, where price erosion most often happens.

How sell-side works
Buy-side advisory

Acquiring a business

The best acquisition targets are rarely advertised. We draw on a 600,000-company global database, AI-enriched and continuously updated, to map the full universe of relevant companies — then approach the right ones with the right message. We take the mandate from thesis to close, not just to a shortlist.

How buy-side works
Sector focus

Software & SaaS M&A

Software businesses are valued on metrics that EBITDA alone does not capture — ARR growth, net revenue retention, customer concentration, and churn all shape the number. Our proprietary valuation model is built on 2,000 private transactions and lets us arrive at a number with a clear rationale behind it, not just a market average.

Software M&A expertise
Sector focus

IT services M&A

IT services companies are assessed through a different lens: contract type, billing structure, client retention, key-person dependency, and utilisation rates. Buyers know what they are looking for, and so do we. We position IT services businesses accurately within the active buyer market and find the acquirers who value what you have actually built.

IT services M&A expertise
Research infrastructure

We combine human judgement with AI-powered market coverage.

An M&A advisor’s personal network has limits. The company that would pay the most for your business might be headquartered in a market you have never operated in — and it may not be looking to acquire yet. Finding it requires infrastructure, not intuition alone.

We built our own research stack: a continuously updated global database, AI enrichment on every record, and automated workflows that surface relevant matches on demand for any sector or geography. The result is complete market visibility, not a curated slice of it.

How the data drives every mandate:

We move with more precision and create more genuine competitive tension than a traditional network-driven process. Every decision — who to approach, when, and how — is backed by data.

1

Global buyer database — sell-side

We maintain a database of strategic acquirers and PE funds filtered by recent transaction activity, portfolio gaps, and active deployment mandates. When we go to market for a seller, we are approaching buyers who are genuinely looking — not a broadcast list.

2

600,000 target companies — buy-side

For acquirers, we cross-reference your thesis against our global company database to surface the full universe of relevant targets — including those that are not for sale and have never been approached. Geography and obscurity are not obstacles.

3

AI enrichment on every record

Every buyer or target on your shortlist is enriched with financial signals, ownership data, and indicators of likely openness to a conversation. What would take weeks of manual research is done systematically — before we make the first contact.

4

Proprietary valuation models

We draw on data from thousands of private tech transactions to build valuations grounded in how the market actually prices comparable businesses. That means a defensible number — not an estimate dressed up as analysis.

Specialisation in technology and IT services

We do not advise across every sector. We focus on technology because the metrics, buyer universe, and deal dynamics in tech are different enough to require genuine expertise — not a generalist framework applied to a SaaS P&L.

01

B2B software & SaaS

We know the difference between a software business trading on EBITDA and a SaaS business trading on ARR multiples — and how growth rate, NRR, and churn shift the number. We position each business within the right valuation framework and find buyers who understand it.

02

IT services & MSPs

IT services companies are assessed differently: contract length, billing structure, client concentration, and key-person risk all inform the valuation. We understand the buyer lens and position your business to the acquirers most likely to pay for recurring relationships, not just headcount.

03

Digital agencies & dev shops

From development agencies to e-commerce technology platforms, we know which buyers are actively consolidating this space across Europe and the US — and how to position a services-led business so that its client relationships read as assets, not dependencies.

04

Deep tech & vertical software

Niche and specialised technology requires buyers who can recognise the IP value, not just the revenue line. We identify strategic acquirers for whom your technology addresses a specific gap — and structure the conversation around that fit.

Our valuation models account for company size, growth trajectory, market cycle, and sector-specific KPIs — not a one-size multiple.

How an M&A transaction actually works

Buyers run M&A processes dozens of times a year. Most founders do it once. Our job is to close that gap — taking on the complexity so you can stay focused on your business.

1

Valuation, normalisation & equity story

Before anything goes to market, we establish what the business is worth — and build the case for why. We normalise the financials, surface value that does not appear in standard accounts, and construct a narrative that explains the opportunity to buyers who are meeting the company for the first time. The goal is not just a number. It is a number with a convincing argument behind it.

2

Buyer identification & confidential outreach

We prepare an anonymised document that goes to market without revealing who you are. Then we approach a curated list of buyers — strategic acquirers and PE funds that are active in your sector and most likely to value what your business offers. Broad distribution is not our approach. Targeted outreach to the right buyers is.

3

Management meetings & competitive offers

Qualified buyers submit initial offers. Running these in parallel creates the conditions for genuine competition. We prepare you for management presentations, help you read what buyers are really communicating, and make sure they are pricing the right version of your business — not a conservative reading of it.

4

LOI negotiation & shortlisting

The Letter of Intent defines the shape of the deal before due diligence begins. This is where earn-out structures, working capital adjustments, and warranty frameworks get established — and where an inexperienced seller can give away significant value without realising it. We negotiate the LOI in detail before any buyer is granted exclusivity.

5

Due diligence

The buyer’s legal and financial teams go through everything — financials, contracts, technology, customer data. We run the data room, coordinate responses to hundreds of requests, and shield your team from the administrative load. When buyers use findings to renegotiate, we push back with evidence. The valuation agreed at LOI is the one we protect through to closing.

6

SPA, closing & funds transfer

The Share Purchase Agreement is where future liability gets created — in warranties, indemnities, and conditions that can follow you long after the deal closes. We review every clause with that risk in mind, and make sure the price you agreed to is the price you actually receive.

1

Acquisition thesis mapping

We start by understanding exactly what you are looking for: sector, sub-sector, geography, size range, ownership structure, and the business characteristics that define a genuine fit. This conversation shapes every decision that follows — the quality of the shortlist depends entirely on the precision of the brief.

2

AI-powered market mapping

We run your criteria across a 600,000-company global database, enriched with financial data, ownership signals, and indicators of exit readiness. The output is a complete picture of the relevant market — including companies that are not for sale and have never been approached. That is usually where the best opportunities are.

3

Qualification & prioritisation

We assess each candidate against your thesis — not just on financial profile, but on ownership structure, management depth, customer concentration, and how likely the founders are to engage. The result is a ranked shortlist where the top names are genuinely worth pursuing, not simply the easiest to contact.

4

Off-market approach & first conversations

Many of the strongest targets have never considered selling. Getting the first conversation right — the right person, the right message, the right moment — determines whether a door opens or closes permanently. We design the approach for each target individually and carry it through until there is a real conversation on the table.

5

LOI negotiation

We negotiate on your behalf, with a clear view of what the seller needs and what your hard limits are. Price, structure, earn-outs, exclusivity, and representations — we push for terms that remain intact through diligence, not just terms that are easy to agree to at the outset.

6

Due diligence & closing

We coordinate the diligence process, manage workstreams across advisors, and surface issues before they become expensive surprises. If sellers attempt to renegotiate after the LOI is signed, we push back and hold the terms. We stay involved until the deal is complete and the value is intact.

Not sure which applies to you?

Talk to us. In a short call, we can tell you what your situation looks like from a market perspective — whether you are thinking about selling, buying, or weighing up an offer someone else has placed on the table.

Schedule a 30-minute call

What M&A advisory with Aventis actually looks like

Most advisory firms pitch with a team, then hand the work to analysts. We do not operate that way. Marcin and Filip run every mandate directly — from the first call to the final signature. That continuity matters more than most clients expect until they have been through a process where it was absent.

Marcin Majewski Marcin Majewski Founder, Managing Partner
Filip Drazdou Filip Drazdou M&A Director
01

Sector depth, not sector breadth

We advise on software, SaaS, and IT services transactions only. That focus means we know the active buyer universe in these sectors, the metrics that move valuations, and the deal structures that have worked in comparable transactions. We do not apply a generic M&A framework to a technology business. We apply technology M&A knowledge directly.

02

Data that supports the number

Valuation opinions are easy to produce. Valuation arguments that hold up in negotiation are harder. Our proprietary SaaS valuation model is built on 2,000 private transactions. Our acquisition database covers 600,000 companies. When we say a business is worth a certain multiple, we can show exactly why — and that changes how buyers respond.

03

Honest about timing

We do not need every mandate to close immediately. If the market conditions are not right, if your metrics need another quarter to mature, or if the offer you received is structured poorly — we will say so. Closing a bad deal is not a success for us. Closing the right deal on the right terms is.

04

Aligned on outcome, not activity

The majority of our fee is contingent on the transaction completing at terms that work for you. That means our interest and yours point in the same direction throughout the process — not just at the point of signing. We do not earn by generating activity. We earn by producing results.

Trusted by founders and investors who keep coming back

“The transaction was a big step forward for our whole team. Aventis Advisors did the heavy lifting so that our management team could stay focused on our business.”

Wiktor Walc

President, CKSource

“We had the pleasure of working with Aventis on several deals. We were impressed with Marcin’s negotiating skills and Aventis’ ability to make things happen.”

Sindre Talleraas Holen

M&A Director, Visma

“We have been working with Aventis since 2015 and went through several deals buying, selling, and investing in new projects. We value their creativity and network. Most important is the fact that they take the time to thoroughly understand and pay close attention to our goals.”

Yeonsu Kim

Co-CEO, Hancom Inc.

“Aventis brought a level of expertise and practical insight that greatly contributed to the success of the deal. Their team demonstrated a keen understanding of the nuances involved in M&A in the IT services space, providing sound advice and helping us navigate the complexities seamlessly.”

Rinalds Sluckis

CEO, Digital Mind

Let’s talk about your situation.

Whether you are preparing to sell, looking to acquire, or trying to make sense of an offer that landed in your inbox — a short conversation costs nothing and usually clarifies a great deal. We will tell you honestly what the market looks like, what your options are, and whether we are the right fit. No obligation, complete confidentiality.

Schedule a Confidential Consultation

We work with a limited number of clients at any one time. If we are not the right fit, we will tell you that too.

Questions we actually get asked

The real concerns founders and buyers bring into a first conversation — answered directly.

An M&A advisor manages the entire transaction on your behalf — valuation, positioning, buyer identification, negotiation, due diligence, and closing. For sellers, the core value is this: the buyer has done this dozens of times. You probably have not. An experienced advisor levels that asymmetry and makes sure you are not giving away value you do not even know you have. For buyers, the value is access — to off-market targets, structured outreach, and a negotiating counterpart who knows what sellers actually want.
A business broker typically lists your company and waits for inbound interest. A boutique M&A firm runs an active, strategic process: it prepares a defensible valuation, builds a curated buyer list, approaches targets directly — including those not actively looking — and manages every stage of the deal. Brokers tend to work on volume. We work on a small number of mandates at a time and stay in the process personally from start to finish.
Sell-side processes typically run six to twelve months, depending on business complexity and how competitive the market is for your profile. Buy-side timelines vary more — from a few months for a focused search with a strong shortlist, to longer for niche sectors or geographies that require building relationships with targets who are not yet thinking about selling. We give realistic timelines from the start, not optimistic ones designed to win the mandate.
Software businesses are valued on a combination of ARR multiples, EBITDA multiples, and growth metrics — particularly ARR growth rate, net revenue retention (NRR), churn, and customer acquisition economics. The weight of each depends on your growth profile: a high-growth SaaS business trades on revenue multiples; a profitable, stable software business trades closer to EBITDA. We have a proprietary valuation model built on 2,000 private transactions that lets us benchmark your business accurately and argue the number with evidence — not estimates.
Our fee structure has two components. A retainer covers research, preparation, and process management costs — it is cost-recovery, not margin. The success fee is tied to the completed transaction and is where we earn. Because the majority of our compensation depends on outcome, we are not incentivised to push you towards a deal that is not right. We are incentivised to close the right one at the best achievable terms.
No. Almost every private business has areas that look different under diligence than they do in the day-to-day. Our job is to identify those in advance, normalise the financials to reflect the true economic reality of the business, and position any weaknesses as opportunities for the next owner — not liabilities for the current one. What matters is whether the business is fundamentally sound. We can help prepare the rest.
Yes — and the earlier, the better. Unsolicited offers are rarely structured in the seller’s favour. The buyer has researched your business, knows what they want to pay, and has framed the conversation to their advantage. Before you respond, you need to know whether the valuation is fair, whether the terms protect you, and whether running a broader process would produce a better outcome. Even if you ultimately deal with the original buyer, having that clarity gives you real negotiating leverage.
Our deepest expertise is in software, SaaS, and IT services — including outsourced software development, systems integration, managed services, and vertical software businesses. Geographically, we advise on transactions across Europe and have closed deals with buyers and sellers from North America, Asia, and the Middle East. Our acquisition database covers 600,000 companies across every major market globally, which means buy-side geography is rarely a constraint.