Selling or partnering your industrial subcontracting SME in France: uneven order books, scarce skills, reindustrialisation and consolidation

For decades, a machining, cutting or injection moulding workshop was handed on to the next generation, to a manager in the company or to a peer in the industrial area. This model still exists, but it faces a new reality. Customers are reducing their number of suppliers and asking each one to be larger, more certified and financially stronger; skilled operators are retiring without being replaced; machines, robotics and management systems cost more and more; and markets have fallen out of sync, with automotive and construction declining while aerospace, defence, energy and electronics fill the order books.

At the same time, mid-sized industrial groups, often backed by investment funds, are buying subcontractors to build multi-technology groups. For the owner of an SME with 15 to 250 employees in precision engineering, bar turning, boilermaking, plastics or electronics, the buyers, the timing and the preparation of a sale have changed.

A fabric of 42,000 companies, 90% with fewer than 50 employees

French metalworking in the broad sense, from metal processing to aerospace via mechanical engineering, electronics and automotive, has 42,000 companies and 1.5 million employees, with annual revenue of €615 billion, half of it exported, according to the 2026 presentation by the employers' federation UIMM. ¹ Around 90% of these companies have fewer than 50 employees: this is the world of subcontracting. ¹ In thin sheet metalworking alone (cutting, stamping, fine sheet metal, tooling), the industry's joint observatory counts nearly 1,000 companies and 51,000 employees for €12.4 billion in revenue. ²

The economic picture is mixed. In its August 2026 survey, the Banque de France measured capacity utilisation of 76.4% for industry as a whole, but only 72% in metallurgy and metal products, whose order books remain below normal, like those of plastics. ^3,4 Conversely, other transport equipment, which includes aerospace, shipbuilding and rail, shows order books well above normal, and electronics and electrical equipment run at 84 and 85% of capacity. ³ According to Altares, industrial failures rose 2.7% in 2025, accelerating to 6.4% in manufacturing in the last quarter. ⁵ A workshop dependent on automotive and a defence-qualified workshop do not live through the same year.

The drivers of consolidation

Several factors are pushing independent subcontractors to combine or join a group.

Rationalisation of supplier panels. Customers in aerospace, defence, energy or medical want fewer suppliers, but ones able to deliver complete, certified sub-assemblies and financially sound. The survey by the French directorate-general for enterprise (DGE) of 300 aerospace companies, published in August 2025, notes that difficulties in the subcontracting chain are slowing production ramp-ups, with financing and recruitment the two main obstacles. ⁶ The isolated subcontractor gets delisted or absorbed.
The skills shortage. The industry's joint observatory estimates recruitment needs at around 200,000 people a year until 2035. ¹ In thin sheet metalworking, 85% of companies find recruitment difficult and at least 1,000 entrants a year are needed just to replace retirements. ² A group offers career paths and salaries that a thirty-person workshop struggles to match.
The cost of investment. Five-axis machining centres, robotic cells, 3D inspection, ERP, cybersecurity required by defence customers, decarbonising furnaces and presses: staying competitive costs millions of euros. Groups amortise these investments across several sites and access debt more easily.
Out-of-sync markets. The French economy ministry's industrial barometer published in March 2026 shows the net balance of plant openings and extensions falling to +19 in 2025, against +88 in 2024, positive in defence, aerospace and electronics, negative in mechanical engineering, metallurgy and transport. ⁷ A single-market subcontractor takes these cycles head on; a diversified group offsets them.
Owner demographics. According to a Bpifrance Le Lab study published in November 2025, 40% of owners of micro-businesses, SMEs and mid-caps intend to hand over within five years, around 370,000 companies including 58,000 SMEs, whereas only 130,000 would change hands at the current pace. ^8,9 Many subcontracting founders reach retirement without a family successor ready to take over a demanding trade. Waiting means risking a forced sale.

Who buys subcontractors today

The sector imposes no restrictions on capital ownership, but a sale requires dealing with the transfer of customer qualifications, often attached to the site, foreign investment screening for defence-related activities, ownership of tooling and prior information of employees. Four buyer profiles stand out.

Mid-sized industrial groups. They buy workshops to add a technology (surface treatment, welding, large-scale machining, technical injection moulding), a customer qualification or a regional location. Buying a qualified workshop costs them less, and is faster, than obtaining the approvals themselves.
Fund-backed platforms. Funds have built subcontracting groups through successive acquisitions, following a buy-and-build logic: combine complementary SMEs, pool sales, quality and purchasing, invest in machines, then sell the whole within five to seven years, with a preference for aerospace, defence, energy and medical.
Customers and equipment makers. Some customers take over a critical supplier to secure capacity or rare know-how, or support its takeover by a stronger supplier, particularly in defence and aerospace.
Growing peers and foreign buyers. A subcontractor with 100 to 300 employees wanting to complete its range of processes is often the most natural buyer of a 30-employee workshop, and German, Italian or Swiss groups seek locations close to large French customers.

What this changes for the owner

There is no longer a single path to succession, but several.

A full sale suits an owner close to retirement, with a transition of six months to two years to hand over customer relationships and shop-floor know-how.
A partnership with reinvestment is for an owner, whatever their age, who still has several years of activity ahead: they sell a majority of the shares to a group or fund, reinvest part of the price in the acquisition holding and share in the value created at the next transaction.
A combination between peers creates an independent regional group with complementary processes, able to bid for sub-assembly tenders and pool sales, quality and purchasing.
A capital reorganisation such as an OBO lets the founder monetise part of their shares, financed by debt, and bring key managers or their children into the capital without giving up control.

Whatever the structure, buyers look at the same things, and a workshop able to show its profitability by part and by machine sells far better than one that only knows it from the balance sheet. The criteria that come up in every file are the following.

Revenue split between customers and end markets. Aerospace, defence, energy, medical, automotive or construction do not follow the same cycles; a customer base spread across several customers and markets reassures, a dominant customer worries.
Recurrence of parts and contracts. The share of recurring series parts, multi-year contracts, raw material indexation clauses and order book visibility determine the value the buyer will pay.
Qualifications and customer audit history. Certifications, approvals attached to the site, results of the latest audits and defence clearances are assets in their own right, long to obtain.
Profitability by part family and by machine. The real cost price of each series, machine utilisation and the contribution of each part family distinguish volume from margin.
Machinery and premises. Age and financing of the machinery, current leases, degree of robotisation, investments to be made, ownership or lease of premises and environmental compliance of the site.
The shop floor and transfer of know-how. Age profile, versatility, shop-floor supervisors able to carry production and the technical relationship with customers, process documentation.
Quality and normalised profitability. Scrap rate, late deliveries, customer complaints and real earnings once the owner's pay and rent are brought to market levels.

You are thinking of selling: is this the right moment for you?

This is the first question we ask, and the answer is not the same for everyone. The right moment for a sale or partnership is never automatically "right now", even in a market where groups and funds are looking for qualified targets. It depends on two things: you, meaning your life plans, personal horizon and wealth objectives, and your company, meaning its ability to realise today all the value it holds. We encounter two situations.

Your company is almost ready. Revenue is spread across several customers and markets, a significant share of parts is recurring, qualifications are up to date, the machinery is recent, shop-floor supervision is solid and profitability is readable. Or you want your company to become part of a larger project, that of a large group, often under LBO, that brings the tools, expertise and resources to invest in machines, robotics and certifications, which is reassuring for you and for your teams. In this case, a few weeks of preparation are enough to go to market. The current context, with more buyers than ever, then works in your favour.
Your company needs time. One customer represents more than half of activity and has just revised its volumes, last year's margin was hit by a raw material increase not passed on or a declining automotive market, the machinery is reaching end of life without a funded investment plan, or a customer audit found quality gaps. Selling remains possible, but it means accepting a discount and less favourable terms. We will then tell you frankly that it is better to spend several months, sometimes a few years, working on these points, and we can support you through that phase before launching the transaction when you are truly ready.

The workstreams that make the difference in subcontracting are well known: diversify customers and end markets towards aerospace, defence, energy or medical; contract recurring parts with raw material indexation clauses; measure profitability by part and by machine to drop loss-making series; plan machinery renewal; structure shop-floor supervision and the transfer of know-how; and normalise the owner's pay. Depending on your starting point, they take a few weeks or a few years.

The benefit of talking early, even without being sure you want to sell, is knowing which of these two situations you are in, and deciding with full knowledge rather than under the pressure of a delisting, the departure of key craftsmen or a machine you cannot finance.

Facing industrial groups and funds that complete several acquisitions a year with dedicated teams, a workshop owner negotiating alone is rarely on an equal footing. The value of a subcontracting SME is not just a headline price: it depends on the deal structure (cash portion, earn-out, reinvestment), the treatment of leases, inventory and premises, the warranties requested, the future of the teams and the site, and your role during the transition. Two offers for the same amount can mean very different things.

The role of an independent M&A adviser is to value the company objectively, identify all relevant buyers, industrial groups, fund-backed platforms, customers, peers and foreign buyers, put them in competition in a structured and confidential process, and negotiate terms beyond price alone. This competition protects the seller.

Frequently asked questions

Can a subcontractor that depends on a single customer be sold?

Yes, but on less favourable terms: the buyer will factor the risk into the price, into an earn-out conditional on maintained volumes or into the warranties. When the dominant customer is an aerospace, defence or energy company with multi-year contracts, the risk is better accepted. Diversifying customers before launching the deal clearly changes the negotiation.

Does a workshop of twenty or thirty employees interest industrial groups?

Yes, provided it brings something specific: a complementary technology, a customer qualification that is hard to obtain, a location close to a major customer or a skilled team. Mid-sized groups and fund-backed platforms regularly buy workshops of this size to complete their range of processes.

Can you sell your industrial SME and keep running it?

Yes. A partnership with reinvestment lets you sell a majority of the shares to a group or fund, reinvest part of the price in the acquisition holding and continue to grow with greater investment resources, sharing in the value created at the next transaction. A capital reorganisation such as an OBO lets you monetise part of your shares and bring in managers or children without giving up control.

How long does it take to sell an industrial subcontracting company?

Allow six to twelve months between the first conversation and signing: preparing the file, confidentially approaching buyers, offers, financial, technical and environmental due diligence, negotiation and formalities, including prior information of employees. A transition of six months to two years follows to hand over customer relationships and shop-floor know-how.

What formalities are specific to selling an industrial subcontractor?

The sector imposes no restrictions on capital ownership, but several points must be addressed: transfer of customer qualifications, often attached to the site, ownership of tooling, which sometimes belongs to customers, the site's environmental compliance, and, for defence-related activities, foreign investment screening, which may require prior authorisation when the buyer is not French.

Who buys mechanical subcontracting SMEs today?

Mid-sized industrial groups adding a technology or location, fund-backed platforms combining complementary SMEs, some customers and equipment makers securing a critical supplier, growing peers and German, Italian or Swiss groups seeking a location close to large French customers.

When should you start preparing the sale of your workshop?

Two to three years before the target date, to have time to diversify customers, contract recurring parts with raw material indexation clauses, measure profitability by part and by machine, plan machinery renewal, structure shop-floor supervision and normalise the owner's pay.

Why put several buyers in competition to sell your industrial SME?

Because an industrial group, a fund-backed platform, a customer and a peer do not value the same assets: one pays for a qualification, another for capacity, the third for a team. A confidential process that puts them in competition allows you to compare genuinely different projects and negotiate beyond the headline price: cash portion, earn-out, treatment of leases and premises, warranties and the future of the site and teams.

Public sources consulted

UIMM, Dossier de présentation 2026, chiffres clés de la métallurgie (avril 2026) : https://uimm.lafabriquedelavenir.fr/wp-content/uploads/2026/04/Dossier-De-Presentation_UIMM_2026.pdf (high reliability)
Observatoire paritaire de la métallurgie, Étude prospective sur le travail des métaux en feuilles minces, présentation orale (30 juin 2025) : https://www.observatoire-metallurgie.fr/sites/default/files/2025-07/obsm_emboutissage_pres_orale_v300625.pdf (high reliability)
Banque de France, Enquête mensuelle de conjoncture, industrie, services et bâtiment, août 2026 (15 septembre 2026) : https://www.banque-france.fr/system/files/webstats/Conjoncture_Industrie_Services_et_Batiment_202608_v2_20260914/FR_conjoncture-industrie-services-batiment_aout2026.pdf (high reliability)
Banque de France, Conjoncture métallurgie et fabrication de produits métalliques, août 2026 (15 septembre 2026) : https://www.banque-france.fr/system/files/webstats/Metallurgie_et_fabrication_metalliques_202608_20260915/FR_Conjoncture_202608_CH.pdf (high reliability)
Altares, Défaillances d'entreprises en France, bilan 2025 et 4e trimestre, communiqué de presse (20 janvier 2026) : https://www.altares.com/wp-content/uploads/CP-ALTARES-DEFAILLANCES-T4-BILAN-2025.pdf (high reliability)
Direction générale des Entreprises, Les sous-traitants aéronautiques face au défi de la montée en cadence, enquête auprès de 300 entreprises (4 août 2025) : https://www.entreprises.gouv.fr/la-dge/publications/les-sous-traitants-aeronautiques-face-au-defi-de-la-montee-en-cadence (high reliability)
L'Info durable avec AFP, La réindustrialisation de la France ralentit en 2025 selon le baromètre de Bercy, avec les données Trendeo (30 mars 2026) : https://www.linfodurable.fr/economie/la-reindustrialisation-de-la-france-ralentit-en-2025-selon-le-barometre-de-bercy-55719 (good reliability)
Bpifrance Création, Observatoire, Un marché de 370 000 entreprises à reprendre d'ici 2030, étude Bpifrance Le Lab avec CCI France, CMA France et CRA (27 novembre 2025) : https://bpifrance-creation.fr/observatoire/actualites/marche-370-000-entreprises-a-reprendre-dici-2030 (high reliability)
L'Express Franchise, Secteur, région, taille : quel est le profil des 370 000 dirigeants souhaitant transmettre leur entreprise d'ici 2030, synthèse de l'étude Bpifrance Le Lab (28 novembre 2025) : https://lexpress-franchise.com/actualites/secteur-region-taille-quel-est-le-profil-des-370-000-dirigeants-souhaitant-transmettre-leur-entreprise-dici-2030-en-france/ (moderate reliability)