Good businesses lose public sector tenders every week. It’s not because they lack experience, cannot deliver, or even because they were too expensive. Often, they lose because their submission does not allow evaluators to award high marks against the set marking criteria.

A strong competitor, an incumbent supplier or a lower price may all influence the outcome. But many lost bids come down to something more practical: the response did not answer the question clearly enough, evidence the claims strongly enough or align closely enough with the scoring criteria.

The aim is not simply to describe how good you are. It is to show, within the limits of the question, why the buyer can trust you to deliver the services they require.

1. The biggest myths about why tenders are lost

When a tender result goes the wrong way, it can be easy to make the following assumptions:

• “We were beaten on price.”
• “The buyer wanted to work with a larger enterprise.”
• “The incumbent had the advantage.”

These may be true in some cases. Price will always matter. Scale can be reassuring. And incumbents can feel like a safer pair of hands.

But it’s important to avoid defaulting to these convenient explanations. They may stop you from taking a closer examination of the quality of your submission.

Public sector buyers are not free to award contracts based on preference alone. They must evaluate bids against the stated criteria. If your bid does not score well, the issue is often that the response failed to demonstrate your value in a way the evaluators could reward.

Good companies may assume their reputation will carry weight. They may rely on broad claims about quality or service, including information that sounds impressive, akin to their marketing language – but this is not the kind of information that scores highly.

The result is a bid that may feel strong internally but does not score strongly externally.

This is where external bid expertise may prove useful. Experienced bid professionals are able to view responses from the lens of the buyer. They know what scores well – and what scores poorly.

2. Understanding how evaluators actually score responses

Evaluators read tenders through a scoring framework. They are checking whether the answer addresses the question, covers the required points and provides enough evidence to justify the mark awarded.

As a result, every response should begin with a close reading of the question:

• What is the question asking you to explain?
• What specific areas must be covered?
• What does the scoring guidance say an excellent answer should include?

This is particularly important where there are strict word or page limits. Space should follow value. If a question is heavily weighted, it needs a more developed answer. If a sub-point is minor, it still needs to be addressed, but it should not dominate the response.

Evaluators can only score what is in front of them. They cannot award marks for experience that is implied but not explained. They cannot credit a process that is mentioned but not evidenced. They cannot assume your team will manage a risk simply because you state that you will.

A strong response removes uncertainty. It speaks directly to all facets of the question. It explains how the work will be delivered. It shows who is accountable. It details the benefit to the buyer and its service users. And importantly, it provides strong evidence to support the claim.

Given the time pressure that evaluators are sometimes under, the easier you make the scoring decision, the stronger the bid will likely become.

3. Common writing mistakes that reduce marks

Many losing bids are not badly written in a general sense. They are often fluent, professional and detailed. The problem, as mentioned above, is that they are not always scoreable.

One common mistake is answering the question how the supplier wanted it to be asked, rather than appreciating the reason the buyer has asked the question in that particular way. This often happens when a company has a particular strength it wants to promote.

If the question is about mobilisation, the answer needs to focus on mobilisation. A supplier’s training programme, technology platform or customer service model may be relevant, but only if it supports the mobilisation answer.

Another mistake is using too much generic company information. Background information, values and accreditations may have a place, but only where they help answer the question. A tender response should primarily be about the buyer and the people using the service. It should speak to their pain points. A response which merely describes how good you are is ultimately missing the mark of what the buyer is looking for. Your credentials as a supplier are evidenced in pre-selection questionnaires.  

A third mistake is making the evaluator do the work. Dense paragraphs, repeated claims and long lists of bullets can all weaken an answer. Bullets may look efficient, but they often remove the explanation that makes a point persuasive. A list of features is not the same as a clear delivery approach.

Readability matters because evaluators are often reviewing multiple submissions under time pressure. A clear structure helps them find the answer. Descriptive headings, concise paragraphs and well-used tables can make scoring easier for the evaluator.

The best responses are often easy to assess.

4. Why evidence always beats marketing language

A tender response is rarely the place for marketing language.

Phrases such as “high-quality service”, “proven approach” and “commitment to excellence” appear in many bids. They may sound positive, but they are relatively empty phrases.

Evaluators need proof. If you say your mobilisation process is robust, define the steps clearly. If you say your service is responsive, provide performance data. If you say you understand the public sector, demonstrate that understanding through relevant examples.

Evidence turns a claim into something the buyer can trust.

This is especially important in the current procurement environment. Buyers are under increasing pressure to make decisions that are transparent, measurable and defensible. They need to show why one supplier scored more highly than another.

Evidence may include contract outcomes, service levels, customer feedback, audit results, case studies, social value achievements or risk controls. The principle is always the same: for a claim to carry weight, it must be backed up with clear evidence.

This applies to social value as much as service delivery. Many SMEs already create meaningful local value. They employ locally, support skills development and invest in their communities. But these strengths score well when they are clearly linked to measurable outcomes … it is essential that you demonstrate additionality. So, in addition to helping sustain local employment etc, you need to set out what additional social value will be created as a direct consequence of being awarded this contract.

A vague promise will not carry the same weight as a specific commitment supported by evidence. In a strong tender response, evidence is not added at the end. It is built into the answer.

5. The importance of bid strategy before writing begins

Many bids go wrong because writing starts too soon. The tender arrives, questions are allocated, and contributors begin drafting. The deadline drives the process.

This can produce a compliant response, but it rarely produces the strongest one.

Before writing begins, the team needs to understand the opportunity:

• What matters most to the buyer?
• Where are the risks?
• What will competitors claim?
• What makes your offer credible, valuable and different?

These questions should shape the bid strategy.

A considered strategy gives the submission direction. It identifies the win themes, the evidence needed and the messages that must remain consistent across the response. It also helps the team decide what not to include.

This is where a structured bid kick-off meeting is valuable. It brings the right people into the conversation early. Subject matter experts, the finance team, and senior decision-makers may all need to contribute. Without this alignment, the bid can become fragmented. Different sections may be technically correct but strategically disconnected.

Bid strategy also supports better bid/no-bid decisions. Not every opportunity is worth pursuing. If the fit is weak, the evidence is thin or the buyer’s priorities do not align with your strengths, it may be better to focus resource elsewhere.

Strong bidding is not just about writing better. It is about making better decisions before writing starts.

6. Practical ways to improve win rates on your next submission

Good businesses often do a lot of things well – and have a lot of strong evidence sitting waiting to be used. Here are some ways to improve responses to translate this reputation into actually winning public sector work.

• Build readiness before the tender lands. Monitor upcoming opportunities, maintain your bid library and keep key evidence up to date. Policies, case studies, CVs, accreditations and performance data should be ready before the deadline begins to close in.
• Start by reviewing each question through the evaluators’ eyes. Ask what the buyer needs to see to award a high score. Then make sure the answer provides it clearly.
• Keep the response close to the scoring criteria. If a point is not helping evaluators to score the answer, challenge whether it needs to be there.
• Replace broad claims with evidence. A short, relevant example will do more than a long paragraph of general reassurance.
• Address risk directly. Buyers know that contracts carry risk. They will have more confidence in a bidder that understands those risks and can demonstrate how they will be controlled.
• Make social value measurable. Show what you will deliver, how it connects to the contract and how progress will be tracked.

Finally, review the submission as an evaluator, not as the supplier:

• Can the evaluator find the answer quickly?
• Is the delivery approach clear?
• Are the benefits specific?
• Is the evidence strong enough?
• Does the response feel written for this buyer, or could it have been submitted anywhere?

These questions are simple, but they expose many of the weaknesses that cost marks. Good organisations should not lose tenders because their strengths were hidden inside unclear, generic or poorly evidenced responses. For SMEs targeting public sector work, this is a real opportunity. Many already have the flexibility, local knowledge and practical delivery experience that buyers value. The challenge is turning those strengths into answers that score.

7. Where external bid support can help

We help good businesses win public sector work.

Our Bid Review and Comment service is designed to review drafts as an evaluator would: against the question, the scoring criteria, the buyer’s priorities and the restrictions of the tender. We identify where the answer is working, where it is drifting, where evidence is missing and where space could be used more effectively.

Where more support is needed, our Bid Writing and Management service can help take control of the wider submission. We plan the response, manage the process, coordinate contributors and develop clear, evidence-led answers that are easier for evaluators to score.

A strong quality submission is vital. In public sector bidding, the strongest business does not always win. The clearest, most relevant and best-evidenced tender often does.