Testing and experts

Selling a testing and engineering services company: structures, electrical, building services, hazardous substances

We buy owner-managed inspection firms with statutory inspection cycles: structural inspection under DIN 1076, electrical testing under DGUV V3, certified building services inspectors, hazardous substance and contaminated site surveys, drinking water and playground inspection. Directly or through your advisor.

Confidential. Only the three partners see your enquiry.
Last updated: September 23, 2026 · +49 40 89741812
Owner of an inspection firm passing on experience to a young inspection engineer
AI-generated image
about 67,000municipal road bridgesDifu 2013
almost 50%with a condition rating of 2.5 or worseDifu 2013
about 130,000bridges in GermanyBMV 2018, VFIB 2025, Difu 2013
every 3 yearsinspection of special buildings by certified inspection expertsPrüfVO
Confidential from the first minute
Does this sound familiar?

Six inspection firms where the signature depends on the owner

You built your company over decades. We know these situations from talks with owners. One of them is probably yours.

The structural inspector with a full inspection calendar

You are 61, lead twelve employees and inspect about 400 structural sub-units every year. The framework contract with the state road agency runs for three more years. Your best inspector is 58.

The certified inspection expert nearing the age limit

You are recognized as a certified inspection expert for fire protection and ventilation. 180 special buildings run through your office on a three-year cycle. You wonder how to hand over without clients moving to TÜV.

The electrical testing firm with 30 inspectors and little time

Your testing service tests 250,000 items of equipment every year under DGUV Regulation 3. Recording eats up the margin. You want to sell, just not to a facility management group that turns your people into numbers.

The environmental firm with two owners and a plan

You and your partner have run a firm for building pollutants and contaminated sites for 25 years. One of you wants to stop in 2027, the other in 2030. A buyer has to be able to handle both.

The owner who has tried to sell before

You had an advisor, an information memorandum and a 14-month process. The buyer pulled out during due diligence. You want a clear yes or no before you invest time.

The firm with inspection and design under one roof

Half your revenue is structural inspection, the other half structural design. You know buyers only want one half. You are looking for someone who separates the two cleanly and values them fairly.

Test label after a periodic test of a technical system
AI-generated image
We speak your language

Terms your business uses every day

Anyone who wants to buy your company has to understand what your people are talking about. This is our vocabulary.

Main inspection under DIN 1076The hands-on inspection of all components every six years, with equipment, closure and a full report.
Condition ratingThe rating from 1.0 to 4.0 under RI-EBW-PRÜF that the asset owner uses to set its renovation list.
Qualified personThe specialist who may test work equipment under TRBS 1203 and is liable through their signature.
Test intervalThe time until the next test, set by risk assessment, standard or state ordinance.
Defect listThe document the client waits for, which often triggers the follow-up order for the repair.
Integrated function testProof that fire detectors, smoke and heat exhaust ventilation, ventilation and doors actually work together in a fire.
Hazardous substance registerThe overview of where asbestos, PAH, PCB or man-made mineral fibers are installed in the building, as a basis for demolition and operation.
Technical action valueLegionella from 100 CFU/100 ml in drinking water: a risk analysis and a report to the public health office follow.

Your year, as we know it

January to MarchInspection plans and framework contracts for the year are set, indoor inspections and office work run, bridge inspections often pause because of the weather.
April to JuneBridge season begins, closure times are agreed with road authorities, main playground inspections start.
July to SeptemberPeak season in the field, inspectors' holidays meet tight closure windows, schools and halls are inspected during school holidays.
October to DecemberClients want inspections completed before year-end, reports pile up, municipalities spend their remaining budgets.
Systems we work with in this sector:SIB-BauwerkeGossen Metrawatt IZYTRONIQGossen Metrawatt SECUTESTBenning appliance testersFluke test equipmentBAFA energy audit portal
How you can tell we know your business

Numbers, rules, deadlines: what is moving your sector right now

A buyer has to know the market. These are the facts we work with.

Road bridges by asset owner

Number
Federal trunk roads: 39,500 bridgesFederal trunk roads39,500State roads: 27,000 bridgesState roads27,000Municipalities: 67,000 bridgesMunicipalities67,000
Source: BMV 2018, VFIB 2025, Difu 2013
What this means for you

Most bridges belong to municipalities, and about half of these are not in good condition. Each one is inspected every three years, even when nothing is being built.

Regulation sets the pace

DIN 1076Main inspection every 6 years, simple inspection every 3 years
DGUV V3Equipment every 6 months to 4 years, installations every 4 years
PrüfVOSpecial buildings: certified inspection experts every 3 years
2024GefStoffV Section 5a: asbestos survey mandatory before renovation

Six facts you can quote

  1. 01Germany has about 130,000 bridges: about 39,500 on federal trunk roads, 27,000 on state roads, 67,000 owned by municipalities (BMV 2018, VFIB 2025, Difu 2013).
  2. 02About half of the 67,000 municipal bridges are not in good condition (Difu 2013).
  3. 03723,270 elevators were inspected in 2025. 76.3% had defects, 10.8% significant ones (TÜV Association plant safety report 2026).
  4. 04The German TIC market was USD 24.13bn in 2025. The five largest providers hold about 62%, the rest is SMEs (Mordor Intelligence 2025).
  5. 05In 2020 there were about 115,700 engineering and planning offices in Germany. 55% employ one to five people (VBI industry report 2023).
  6. 065% of the 4,859 offices surveyed fear closure in 2026. 19% rate their situation as poor (VBI/AHO/BIngK/BAK economic survey 2026).
AI efficiency in this sector

Which segment gains most from the technology

Our assessment for each segment of this sector, side by side. The bar shows what share of today's working time can be automated with available technology.

5segments assessed
4.0Average AI impact, scale 1 to 5
20% to 50%Range of automatable working time
SegmentAI impactAutomatable working timeStrongest lever
Electrical testing535% to 50%Reports without retyping
Additional testing services430% to 45%Routes and scheduling
Hazardous substance surveys425% to 40%Building age and material research
Structural inspection425% to 35%Findings from drone images
Certified inspection experts320% to 30%Checking documents against standards

GTP assessment as of September 2026. Not a market study. Sources and limits are on each segment page.

What we buy

Five inspection fields, driven by law

What we do not buy
  • Pure engineering design offices: structural design, building services design, electrical design, architecture. The business depends on individual projects and individuals.
  • Health and safety coordination and construction supervision as the main business. The order ends with the structure.
  • Publicly appointed surveyors (ÖbVI). State law usually does not allow outside shareholders.
  • Approved inspection bodies (ZÜS) for elevators, pressure equipment or explosion-protected installations.
  • Firms whose only recognition lies with the departing owner and that have no path to requalification.
Why we buy this sector in particular

Three reasons why we buy in this sector

Inspection cycles continue even in a construction slump

A bridge is inspected every three years, a special building every three years, an item of equipment every six months to four years. These cycles continue when construction stalls. 37% of engineering firms reported falling orders in 2025 (VBI economic survey 2026). Inspection firms with framework contracts were hardly affected.

The building stock is aging faster than inspection capacity is growing

About half of the 67,000 municipal bridges are not in good condition (Difu 2013). At the same time, engineering offices were short of about 7,700 engineers in 2021 (VBI 2023). Inspection capacity is scarce.

Inspection is largely documentation

An inspection report under RI-EBW-PRÜF or a DGUV V3 report consists of findings, photo, rating and text. The engineer collects the findings. A system can generate the text from speech and images. We estimate the desk share at 60% to 80% of working time (GTP assumption). The system drafts the report, the engineer checks and signs it.

What your company is worth

Valuation in five sentences, range with source

Valuation logic

  1. We value your firm on the basis of adjusted EBITDA for the last three years.
  2. The multiple depends on recurring revenue, contract terms and team depth.
  3. A firm whose revenue comes mostly from inspection cycles is worth more than a firm with mostly project revenue.
  4. We take out owner salary and one-off effects transparently.
  5. You see our calculation before you decide.

Value drivers

  • Framework contracts with more than two years remaining
  • Documented inspection cycles: structures due again within 36 months
  • Recognitions held by at least two people other than the owner
  • Digital inspection database without binders
  • High repeat rate

Value reducers

  • Recognition or appointment held only by the departing owner
  • High project share of revenue
  • One client above 30% of revenue
  • Inspectors on the team mostly over 58 with no successors
  • Paper-based reports without structured data

What you get in the first call

The first call takes 30 minutes, is confidential and is held with a partner. We work out your value with your numbers and name the three factors that move it most, including possible discounts. Afterwards you get our assessment in writing, even if we decline.

Request a confidential first call
Market range, third-party source

What comparable companies trade at in the market

Size classEBITDA multiple
Micro-cap, revenue below €5m
The relevant class for most succession cases in this segment
3.5x to 5.5x
Small-cap, revenue €5m to €50m5.0x to 7.0x

Category business services (B2B). Source: DUB KMU-Multiples Q2/2026. The DUB figures show asking prices and price expectations on a business marketplace. They do not include completed transactions. The range comes from an independent third party and is not an offer from GTP.

From multiple to cash

The multiple gives the enterprise value. What reaches your account depends on four items:

Net financial debt
Loans, leases and shareholder accounts are deducted, cash is added.
Working capital
We assume a normal level. An account emptied before the sale reduces the price.
Investment backlog
Vehicles, measuring equipment and software due in the next two years are deducted from the price.
Payment structure
Part of the price is paid only after signing, through a rollover or a performance-based component.
What lowers the value

If one of these points applies, the value drops:

  • The owner personally holds the key customers
  • Short remaining terms or contracts that can be terminated at any time
  • If a large share of revenue depends on one customer, the price goes down.
  • No second management level that runs the business without the owner

We calculate your value in the first call using your numbers. We go through the four items openly with you, even if the result is below your expectations.

What we plan

After the acquisition: what stays and what is added

We build a group from several owner-managed businesses. Each business stays independent and shares back office and purchasing with the others.

Independent, as before

  • Name, brand and your phone number
  • Location and premises
  • Your team and local management
  • Client contracts and the familiar contacts
  • Your prices and your professional signature

What applies to your company, we put in the purchase agreement.

New in the group

Back-office relief
The system handles invoicing runs, documentation and standard correspondence. Your people check and approve.
Recruiting
Joint job postings, training paths and cover between the businesses in the group.
Professional exchange
Four meetings a year with the other owners and managers. Assess interpretation questions, standards and prices together.
Joint client development
Your clients often need services from the sister businesses too. We only recommend them with your consent.
Purchasing and software
Licenses, insurance and measuring equipment on terms a single business does not get.
Capital
Equity from the fund is available for filling positions, expanding locations or add-on acquisitions.
Why this route

Succession is settled, and your business stays independent under its own name. In the group it buys more cheaply and finds staff more easily. You decide whether you keep leading or leave after the handover.

Two types of buyer, one difference

Mid-sized direct buyer or large consolidator?

If the highest price matters most, look at both types of buyer. The table shows what each route means for your team and your role.

Generation Tech PartnersLarge consolidators (TÜV, Dekra, Kiwa)
Purchase priceCalculated openly with your numbersOften higher
ResponseUsually within 72 hours, with reasonsWeeks, often in an auction
Name and locationStayOften rebranding and a head office
Your role afterwardsInterim managing director, advisory board, rollover of up to 25%Usually exit after handover
TeamStays, gets back-office reliefIntegration into group processes
Sector knowledgeMarket data, regulation, sub-segments on this pageYes, often deeper

Both routes work directly or through an M&A advisor. We are just as happy to work with an advisor.

Elias Bitzer, Partner at Generation Tech Partners
Why we buy this segment
Your clients trust inspectors with a name and recognition. That is why we only buy if the team stays and the next generation already works in the business.

We first look at who will sign in five years. If that is only the owner, we tell you before any price discussion.

For M&A advisors, tax advisors and succession advisors

Minimum sizes and teaser metrics for inspection firms and experts

Here are our minimum sizes per segment and the metrics we need in the teaser.

Minimum sizes per segment

SegmentMinimum size
Structural inspection under DIN 1076Certified structural inspectors on the team
Electrical testing under DGUV Regulation 310 or more field inspectors
Certified building services inspectorsAt least two recognized people
Hazardous substance and contaminated site surveysFramework clients from the housing sector, industry and the public sector
Additional testing servicesAs an add-on or on its own from €0.5m EBITDA

These metrics belong in the teaser

  • Structures in the current inspection cycle
  • Revenue share of framework contracts and their remaining terms
  • Revenue share of the largest client
  • Recognized or qualified persons per discipline

What you get from us

  • You usually get a clear answer with reasons within 72 hours. A no also comes in writing.
  • We only approach your client through you.
  • The price in our indicative offer only changes if due diligence shows something different from your documents.
  • Capital comes from our €60m fund. We do not look for investors during the process.
  • If your client does not fit us, we tell you who might.
Frequently asked questions

What owners ask us

Do I lose my recognition or appointment when I sell?

No. Recognitions as a certified inspection expert, structural inspector or expert are personal. They are tied to you and are not affected by a change of shareholders. In a share deal, the company remains in place and you remain recognized. That is why in step 3 we check which employees will requalify before you leave.

Do you also buy engineering design offices?

No. Structural design, building services design, electrical design and architecture live on individual projects. Revenue depends on the construction cycle and on a few individuals. We turned down a structural engineering office for exactly this reason. Inspection firms have statutory cycles and recurring clients.

What is my engineering firm worth?

The value is the adjusted EBITDA of the last three years times a multiple. The multiple rises with recurring revenue, contract terms and team depth. It falls with the project share and dependence on the owner. We work out your value in the first call using your numbers and show the calculation openly.

How long does the sale take?

From the first call to closing, we usually expect 6 to 9 months. You usually get a response within 72 hours. The indicative offer follows after 2 to 4 weeks. Due diligence takes four weeks.

Can I stay on as managing director after the sale?

Yes. Many owners stay 6 to 24 months as interim managing director and then move to the advisory board. Others hand over right away to a managing director from our network. We set this out together in the purchase agreement.

What happens to public-sector framework contracts?

In a share deal, your company remains the contracting party. Framework contracts with Autobahn GmbH, state road agencies or municipalities continue. An asset deal would trigger a new tender. That is why we always structure inspection firms as share deals.

What does AI transformation mean for my inspection team?

Your inspectors still collect the findings on site themselves. What is new is the documentation: dictation and photos become a draft report. The inspector checks, corrects and signs. That saves hours at the desk per report. Nobody loses their job.

Should I sell with an M&A advisor?

That is your decision. Many owners work with an advisor, and we are happy to work with them. A good advisor prepares documents and saves both sides time. If you come directly, the partners run the process themselves. In any case, you should bring in your own lawyer and tax advisor.

Our team, the process at a glance, press and common questions about selling are on our main site.

First step

Talk to a buyer who knows the difference between inspection and design

A 30-minute call is enough to know whether we fit. Afterwards you get a written assessment with reasons.

Request a confidential first call

Or call us: +49 40 89741812

ConfidentialOnly the three partners see your enquiry. An NDA is possible in advance on request. We share nothing with third parties.
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