Public Tenders: When They Pay Off for Small Businesses

Why public contracts are interesting for small businesses

The public sector is one of the largest buyers in Europe. According to European Commission figures cited by Hoekman and Taş (2022), public procurement accounted for about 13.3 percent of EU economic output in 2015 to 2017, roughly 2 trillion euros a year. This includes construction, cleaning, IT, consulting, trades, printing, catering, and much more, exactly the services that small and mid-sized businesses offer.

Even so, many owners avoid this market because of its reputation, while others bid on everything and never get the time back. Both attitudes are too sweeping.

This guide therefore answers one question: When does a public tender pay off for a small or mid-sized business, and how do you check that before investing time? To answer it, we first clarify the key terms and rules, then present a mental model for capturing the costs of a bid, and review what research knows about small firms in procurement procedures. At the end is a calculation you can apply before every bid.

Tender, lot, eligibility: key terms explained

Procurement law has its own language. Knowing the basic terms lets you read documents faster and see earlier whether a procedure fits.

• Procurement procedure: The regulated process in which federal, state, and local governments and publicly funded bodies obtain bids. In an open procedure any company may bid; in restricted procedures only selected ones.
• Threshold: The contract value from which European procurement law applies. Below it, national rules apply.
• Lot: A separately awarded part of a larger contract, for example by trade or region.
• Eligibility: Whether a bidder can perform the contract technically, financially, and legally, proven with references, revenue figures, and declarations.
• Award: The decision for the most economically advantageous tender, which need not be the cheapest if quality is also scored.

For Mittelstand businesses, Germany’s small and mid-sized companies, the range below these thresholds is often the more important one. Since July 1, 2026, Germany’s Procurement Acceleration Act (Vergabebeschleunigungsgesetz) has also applied. According to IHK Schwerin, federal authorities may now award services up to 50,000 euros net directly; the previous limit was 15,000 euros. This does not automatically apply to states and municipalities. Part of the business with the public sector therefore runs through direct inquiries, not tender portals.

The mental model: transaction costs of a bid

Why do public contracts feel so much more demanding than private ones? A sober answer comes from transaction cost theory, which goes back to Ronald Coase and was developed by Oliver Williamson. Its core idea: every market exchange causes costs beyond the price, namely for finding a partner, for negotiating and concluding the contract, and for checking that delivery is as agreed. These costs help decide whether a deal pays off.

In procurement law, bidders deliberately carry part of these costs. Transparency and equal treatment are sensible goals; their price is formal rules, proof requirements, and deadlines. A large supplier spreads these costs across many procedures, while a business with ten employees bears them anew with every bid.

1. Search costs

   Time for scanning procurement platforms and notices, reading the specifications, and deciding whether a procedure fits.

2. Bid costs

   Costing, forms, self-declarations, references, certificates, concepts, and electronic submission. This is usually the largest block.

3. Delivery costs

   Documentation, acceptance inspections, change orders, invoicing as e-invoices, and coordination with the contracting authority during performance.

4. Costs of losing

   With every lost tender, search and bid costs are gone. They must be earned back through the contracts you win.

The formula is simple; estimating the probability of winning is not. A guide: how many comparable procedures have you won in the last two years? Without experience, the number of bidders helps, which many authorities disclose after the award. With five bidders offering similar services, 20 percent is an optimistic assumption. What a contract actually brings in contribution margin is described in the guide contribution margin per order.

What studies show about small firms in procurement

The most thorough analysis for Europe comes from Hoekman and Taş (2022). They analyzed the EU procurement database for 2016 and 2017 across 32 European countries. Of just over a million awarded contracts, 205,578 contained information on how many small and mid-sized firms had bid. In this subset, 67 percent of contracts went to a small or mid-sized firm; in the larger set of 531,164 contracts with information on the winner, it was 53 percent.

Three findings are particularly revealing for owners. First, small firms bid more often when the procedure is open and the contract is small. Second, the quality of a country’s procurement rules, meaning transparency, clear deadlines, and reliable payment, is associated with more participation and better chances of winning for small firms. Third, splitting contracts into lots increases participation, but the probability of winning rose only for lots of up to about 25,000 euros. A German study by Glas and Eßig covering 380 awards, cited by the authors, found no significant effect of lot splitting on the success rate.

Two further studies contradict common assumptions. Deschamps (2025) examined about 10,000 award procedures in France from 2022 and 2023 and found no evidence that environmental criteria deter small firms. On the contrary, with such criteria more small firms tended to bid. Schäfer, Stephan, and Fuhrmeister (2024), by contrast, show that public contracts do not ease the financing constraints of innovative small firms but rather tighten them. A public contract brings revenue, but not automatically breathing room in the cash account.

The European analysis mainly covers contracts above EU thresholds. Whether the findings apply in the same way below them cannot be derived from the figures.

Two readings: reliable customer or bureaucracy trap?

Owners hold two readings of public contracts, and both can be justified.

As shown above, the findings support both sides. Small firms win a large share of contracts, yet the effort per bid remains high. I therefore consider a third reading more sound: public contracts are a market of their own with costs of their own. They pay off for businesses that choose it deliberately and lower their bid costs through repetition, and rarely for spontaneous occasional bidders.

A tender is not won by the best business, but by the best business that submitted the most complete bid.

Payment also speaks for the public sector: under Section 271a of the German Civil Code (BGB), payment terms over 30 days are permitted for public authorities only by exception, and over 60 days not at all. Upfront performance is still necessary. What this means for liquidity is discussed in growth costs liquidity.

The check before every bid: is this tender worth it?

The transaction cost calculation can be applied in a few minutes. A worked example with freely chosen numbers: a business is considering bidding for a municipal maintenance contract worth 120,000 euros over three years. The contribution margin after direct costs is 25 percent, or 30,000 euros. For reading, costing, documents, and submission, the owner expects three working days, valued at 2,000 euros.

At a 1-in-10 chance, the expected value is 1,000 euros, hardly worth a week of uncertainty. At 1 in 3, it is 7,000 euros. The leverage therefore lies in two places: raising the probability of winning by bidding only on suitable procedures, and lowering bid costs by reusing documents. A third lever is the contribution margin itself. If you only win a pure price competition by halving your margin, the whole calculation shifts.

• The service belongs to our core offering; we do not need to build anything new.
• We meet all required eligibility criteria, references, and revenue thresholds without forming a consortium.
• The award criteria score quality, concept, or deadlines in addition to price.
• The contract or lot fits our capacity without crowding out other customers.
• We can carry the pre-financing until the first payment.
• The contribution margin remains adequate at the realistically expected price.
• The contracting authority is one we want to work with long term.

If two or more points fail, the answer is usually no, and the time saved goes into better procedures. After a rejection you usually learn your rank and the reason. How to evaluate that is described in the guide win-loss analysis.

How to lower the cost per bid

The most important finding from the mental model is this: bid costs are largely fixed costs. If you build them properly once and reuse them afterward, you shift the calculation in your favor for good. Five steps help.

1. Create a document folder

   Commercial register extract, certificates of good standing from the tax office and health insurers, proof of insurance, a reference list with contacts and contract values, staff numbers. Maintain them with expiry dates.

2. Check prequalification

   For construction work there is a prequalification register; for supplies and services there are official registers of prequalified companies. One entry replaces many individual certificates.

3. Building blocks for concepts

   Write texts on quality assurance, staffing, process, and contingency plans well once and adapt them for each procedure. How this works in your own quoting process is shown in the guide standardizing the quoting process.

4. Narrow the search

   Limit search alerts on procurement platforms to a few service types and one region. Fewer hits with a better fit save more time than any template.

5. Consider a consortium

   For contracts that are too large, several businesses bid jointly, with clear agreements on scope and liability.

Framework agreements are re-tendered when they expire. If one authority accounts for more than a quarter of revenue, the rule of thumb from the analysis concentration risk therefore applies: deliberately counteract.

What follows beyond the individual case

Two general rules follow from the findings. First, taking part in public procedures is a strategic decision. Those who enter this market treat it like a sales channel, with responsibility, documents, and evaluation. Second, it rewards completeness more strongly than private business, but offers transparency in return: you learn from every award. Hoekman and Taş (2022) find higher participation of small firms where procedures are transparent and reliable, not where they are given preference. Trust arises from clear rules that apply to everyone.

The limits belong here too: chances depend heavily on industry, region, and contracting authority, and robust figures for the German below-threshold range are missing. According to IHK Schwerin, a reform of the German regulation for below-threshold awards (Unterschwellenvergabeordnung) has also been announced. Check the current status with your chamber.

Conclusion and next step

To the guiding question: a public tender pays off for a small or mid-sized business when the expected contribution margin clearly exceeds the costs of searching and bidding. That is the case when the service is part of the business’s core, eligibility can be proven without detours, the award criteria score more than price, and the business has lowered its bid costs through repetition. Those who bid occasionally and without preparation pay the full transaction costs and win too rarely to earn them back.

1. Review the notices of the last three months on two procurement platforms for your service type and region, and count how many really fit.
2. Create the document folder with all standard certificates and note the expiry dates.
3. For the next suitable procedure, run the check with probability of winning, contribution margin, and bid costs.
4. After every award, record rank, reason, and effort. After five procedures you will decide with figures whether this market fits your business.

How to build winning quotes in general is described in the guide quotes that win. The public tender forgives less, but tells you honestly what went wrong.