One of the most common weaknesses in tender responses is that they contain plenty of promises but not enough evidence.
We will deliver a high-quality service.
We will work closely with local partners.
We will ensure staff are appropriately trained.
We will put service users at the heart of delivery.
Thesestatementsare fine. The problem is that every credible bidder makes them.A strong tender response needs to go further by explaining how you will deliver on these promises, providing appropriate evidence to give the evaluator confidence that you can actually do it.
In other words: don’t just tell them you’re good or what you intend to do. Show them how.
Move from what to how
Tender specifications typicallyhave minimum requirements around safeguarding, partnerships, staffing, outcomes, and many other elements.A weak response simply repeats the requirement as a promise:“We will ensure that all safeguarding concerns are identified and responded to appropriately.”
A stronger response explains what will actually happen. Who identifies a concern? What are staff trained to recognise? Who is notified? How quickly? What needs to be escalated? How will you record it? How do managers know the correct process has been followed?This is the difference between describing your intentions and describing your delivery model.
A useful discipline when reviewing a tender response is to look at every significant statement beginning “we will” and ask how.
Evidence reduces bid risk
Commissioners need confidence that the successful bidder will be able to deliver what it has promised.Evidence helps to provide that confidence.
Imagine two bidders promising to achieve high levels of customer satisfaction.
Bidder A says:“We have extensive experience of delivering high-quality services and consistently receive excellent feedback from our customers.”
Bidder B says:
“Across our comparable services last year, 92% of customers said they were satisfied or very satisfied with our support. We collect feedback quarterly, review the results, and implement improvement plans if performance falls below target.”
The second answer is more convincing because it doesn’t simply make a claim. It provides evidence and explains something about the process behind the result.
Claim + evidence + explanation is more persuasive than claim alone.
Use the right evidence for the question
The question should determine the evidence you deploy.For example, if you are asked about service quality and performance, useful evidence might include:
Outcomes, e.g. KPI achievement
Performance data
Audit results
Inspection or regulatory findings
Customer satisfaction
Complaints and compliments
Specific examples of improvements following performance reviews.
For a workforce question, you might use staff turnover, vacancy rates, sickness levels, training compliance, employee survey results, or recruitment performance.
For safeguarding, evidence could include safeguarding training compliance, audit findings, or a short case study showing how staff identified and responded to a safeguarding risk or incident.
For partnership working, don’t simply list the organisations you work with – or intend to work with. Explain what partnerships actually achieve. A strong example might show how working with a health service, local authority team or voluntary organisation improved the service provided and helped to achieve a particular outcome.
For questions about service-user involvement or co-production, evidence might include participation levels, survey findings, examples of changes made following feedback, involvement in recruitment or governance, or a specific example of people using a service helping to redesign an aspect of delivery.
Don’t just recycle your best case study
Most organisations have examples they’re proud of, so they'retempted to keep using them.But an impressive case study isn’t necessarily a useful case study. It has to be relevant to the question.
The purpose of experience isn’t simply to prove that you’ve done good work before. It’s to demonstrate why your experience makes you particularly well equipped to deliver the specific contract you're bidding for.
Suppose your organisation has successfully mobilised a similar service in another local authority area.You could write:“We successfully mobilised our X service in 12 weeks in 2026.”
That’s useful evidence, but you can make it work harder:
“We successfully mobilised our X service within a comparable 12-week timetable in 2026, including the TUPE transfer of 18 staff, recruitment to six vacancies and implementation of our case-management system before go-live.”
Numbers help – but only when they mean something
“We supported 5,000 people last year”sounds impressive. But if you’re bidding for a specialist service, the evaluator will be interested to know that you operate eight comparable services, supported 450 people with similar needs, and achieved 94% against a relevant KPI.
And give numbers context. Is 90% good? What was the target? Is performance improving? Is the figure independently audited? Does it relate to the same type of service?
Evidence can also show that you learn
Commissioners want organisations capable of identifying problems, managing risk, learning and improving.Not every example needs a perfect outcome.Sometimes evidence that you identified a problem and improved your approach can be very persuasive.Perhaps an audit identified a problem, so you introduced additional training, revised the process, and follow-up checks found significant improvements.
That demonstrates good governance, honesty, responsiveness, management oversight and continuous improvement.
Do you have an evidence bank?
One reason tender responses make vague claims or promises is that organisations find it difficult to provide relevant evidence. If you don’t have one already, it’sworth developing an evidence bank. The contents of this will, of course, vary depending on the field you are in, but a provider of supported housing services, for example, should consider collecting the following evidence:
Performance and KPI data
Service-user and stakeholder feedback
Audit and inspection results
Outcome statistics
Workforce data
Safeguarding and incident-learning examples
Mobilisation results
Case studies
Examples of service improvement
Partnership outcomes
Awards, accreditations and external recognition
Lessons learned from previous contracts.
Depending on how long you’ve been in business, you should also collect comparable data. For example, if you are three years into a four-year contract, can you evidence an improvement in KPIs during that time to illustrate what a great job you’re doing?
AI tools can make this material much easier to search and interrogate, provided they are used within your organisation’s information-governance and AI policies.
The organisations best placed to write evidence-rich bids are those that collect useful evidence before the tender arrives.
Make every claim earn its place
When reviewing a draft response, look for assertions. If you have asserted that you have “robust” safeguarding procedures, provide “high-quality” support, or are a “responsive” organisation, ask: What evidence have we provided so the evaluator will believe this?
You don’t need a statistic or case study after every sentence. That would make the response unreadable and impossible to write within the word count.But your important claims should be substantiated.
You should be both telling a story and constructing an argument.You understand what the commissioner needs and have a credible plan or model to deliver it. You can explain how the plan will work in practice, supported by relevant evidence from experience that gives them confidence you can deliver.
If you haven’t done so already, see my Human Bid Review for more advice on ensuring your draft tender response is as strong as possible.
