How to win public tenders in Spain: nine steps that are up to you

1. Go after the tenders you can actually win

The first decision that wins or loses a tender is taken long before anyone opens the specifications: which ones to look at. Tenders in Spain are published every day across many different sources (we map them in where public tenders are published in Spain), and most of them have nothing to do with your company. The aim is not a flood of alerts but a shortlist built on what you can genuinely deliver and evidence:

• What you sell and the services you provide, expressed as keywords and CPV codes.
• The contracting bodies and the regions you are interested in.
• The budgets and contract lengths that make sense for a company of your size.
• The solvency, prior experience and certifications required, set against the ones you hold.
• The type of procedure.

A general search tool filters on words. What makes the difference is filtering on your company's context: what it has done, what it can prove and which contracts it wants. That is how Carabela's tender search works.

2. Decide whether to bid before writing a single line

Preparing an offer takes hours of several people's time. That makes the decision to bid, the bid/no-bid call, the most expensive one in the whole process, and it should rest on specific questions rather than instinct:

• Do we meet the mandatory requirements, and do we have the solvency asked for?
• Which documents are we missing, and can we get them before the deadline?
• Do we have enough experience we can evidence for this kind of contract?
• Does the contract fit what we can really do, rather than what we would like to do?
• How much competition should we expect, and what risks does the file carry?
• How much work will the offer take, and what could make it competitive?
• Is there a clear reason to walk away?

Walking away in time is a win too: it frees the hours for the tenders that fit. We go into this in how to decide which tenders to bid for.

3. Read the specifications in full, annexes included

In a Spanish public tender the requirements are spread across the administrative specifications (PCAP), the technical specifications (PPT) and the annexes, and whatever goes unread goes unmet. Before drafting anything, pull out of the file an ordered list of what must be met, what scores and what must be delivered:

• The subject of the contract, the lots, the budget, the term and any extensions.
• The deadlines.
• The award criteria and the price formulas.
• The technical requirements, the financial and technical solvency, and any classification or accreditation required.
• Guarantees, penalties and special conditions of performance.
• The administrative documentation, mandatory formats and annexes.
• Page or length limits.
• Potential grounds for exclusion, and anything your company still needs to confirm.

If these documents are new to you, start with what the PCAP and PPT specifications are. It is the work Carabela's tender analysis does on every file.

4. Work out the strategy before you write

A winning offer is not the longest one; it is the one that answers most squarely what is being assessed. Before you start writing, a few things should be settled:

• What the contracting body really values, and how the points are shared out.
• Which sections deserve the most space and attention, in proportion to what they score.
• What evidence the company can put behind each claim.
• Which strengths to bring forward and which weaknesses to manage.
• Which commitments are reasonable and can be kept.
• How to structure the proposal so that it is easy to mark.

5. Write the technical proposal against the criteria

The technical proposal is where the points that do not depend on price are won or lost. Its table of contents should come from the award criteria, not from a template: each section answers a criterion, takes up the space that criterion deserves and rests on something the company can evidence. Methodology, work plan, team, schedule, technical resources, quality, risks, indicators and improvements, each in its place.

And one rule with no exceptions: do not promise capabilities you do not have. A brilliant proposal full of commitments the company cannot keep is a liability, not an advantage. There is more on this in technical proposals with AI, and it is what Carabela's technical proposal service does.

6. Make sure the paperwork does not knock you out

Plenty of offers lose not on the proposal or the price but on a missing document. Depending on the tender, the administrative side can include:

• Responsible declarations and the ESPD (DEUC in Spain) or an equivalent form.
• Company details, powers of attorney and representation.
• Certificates, accreditations and evidence of solvency.
• References and experience.
• Commitments to assign resources to the contract.
• Joint venture (UTE) or subcontracting documents, where they apply.

The exact requirements always depend on the file. Keeping this documentation organised and up to date saves hours on every tender; we explain solvency, the ESPD and joint ventures in this guide.

7. Set the price with numbers, not by feel

Where price is scored automatically, it is scored with a formula, and each formula rewards something different. Before settling the financial offer, it is worth working through:

• The scoring formula, and how many points each reduction really moves.
• Several price scenarios, and how sensitive the score is to each of them.
• Your likely competitive position.
• The risk of an abnormally low bid.
• The minimum margin below which winning is not worth it.
• The balance between the technical score and the price score.

The final call always belongs to the company, and it has to respect its costs, its limits and its strategy. Winning a contract you cannot deliver at a margin is not winning.

8. Review the whole file before it goes in

The final review is mechanical and exhaustive, and it is exactly where mistakes slip through with the deadline closing in. What to look for:

• Requirements left unanswered.
• Contradictions between the technical proposal, the financial offer and the administrative documentation.
• Missing documents or incomplete annexes.
• Page limits exceeded.
• Claims with nothing behind them.
• Award criteria not fully covered.
• Anything that could get the offer excluded.

9. Learn from every award, including the ones you lose

Every tender leaves useful information behind. Where the data is available, the result is worth analysing: your score and your competitors', the winning offer, the price gaps, the technical marks, the weak points and what worked. That is what turns a series of one-off bids into a public procurement strategy that improves over time. Skip it, and every tender starts from scratch.

How Carabela does it

Doing all nine steps properly on every tender takes time and a team that many companies simply do not have. Carabela works as your company's bid department: it finds the opportunities, assesses the fit, reads the specifications, shapes the strategy, prepares the technical proposal, the administrative documentation and the financial offer, reviews the file, follows the process through to the award and learns from every result. You decide which tenders to go for, approve whatever you want to approve, and sign.

The commercial model points the same way: as a rule, part of what we are paid is tied to the tenders our clients win. And if you have never bid for a public contract in Spain, the place to begin is how to start bidding for public tenders.