9 Best Bid Writers in the UK in 2026 [Freelance + Professional]

The best professional bid writer in the UK for most SMEs in 2026 is Executive Compass, a long-established firm offering full bid writing, reviews and training. It leads a list of nine options that runs from full-service agencies to AI bid writers, consultancies and a freelance marketplace. Each one gets its pricing, strengths and limits set out below.

A bid writer turns what your business does into answers that score against a buyer's evaluation criteria. Good ones know how public sector evaluators mark, how to structure a response to a 1,000-word quality question, and how to find evidence you did not realise you had. They also cost money: most UK bid writing is priced by the day or as a fixed fee per bid, and a large tender can take many days of writing. This guide compares nine ways to get a UK bid writer, from established firms and specialist consultancies to freelance marketplaces and AI tools, so you can match the option to the size of the contract and the size of your budget.

How we evaluated UK bid writers¶

We did not rank firms on self-reported win rates or on review-site star ratings, because they are measured differently by each provider and are hard to compare fairly. Instead we looked at what a typical UK SME needs from a bid writer when it bids for public sector contracts under the Procurement Act 2023, and how easy each option is to buy.

• Public sector depth: experience with Procurement Act procedures, Selection Questionnaires, social value under PPN 002 and sector frameworks.
• Range of support: full writing, bid reviews, bid management, training and tender finding.
• Sector coverage: whether they cover construction, FM, health and social care, IT, transport and professional services, or specialise.
• Access and speed: how quickly you can get a writer on a live tender with a short deadline.
• Cost transparency: whether prices are published or quote-only, and how fees scale with bid size.
• SME fit: whether the service suits a business bidding for £50,000 contracts as well as £5 million ones.

1. Executive Compass: Best for bid writing with training¶

Executive Compass pricing

When to choose Executive Compass

• You are bidding for a contract that is large relative to your turnover and want an experienced writer leading it.
• It is your first framework bid and you want someone who has written for similar lots before.
• You want your own team trained so you rely less on outside help over time.
• You need a pre-submission review of a bid your team has written.

Where Executive Compass falls short

• Prices are not published, so you need a quote for each bid.
• Fees are hard to justify on low-value contracts you bid for often.
• You still need to give the writer access to your operations staff and evidence.

2. CleanTender: Best for soft FM contractors¶

CleanTender pricing

When to choose CleanTender

• You run a cleaning, security, grounds, waste or catering business and bid for soft FM contracts regularly.
• You want method statements drafted around sector evidence such as BICSc training, COSHH, SIA licensing and BS 7858 vetting.
• You bid for NHS or school cleaning contracts and want answers that reflect cleaning specifications.
• You want a predictable yearly cost rather than a fee per bid.

Where CleanTender falls short

• Soft FM only: no use for construction, IT, health and social care or professional services bids.
• It drafts; you still edit, check and submit the answers yourself.
• No human strategist, interviews or presentation coaching.
• Output quality depends on the evidence you load into it.

3. AI Tender Writer: Best for SMEs in any sector who bid regularly¶

AI Tender Writer pricing

When to choose AI Tender Writer

• You are an SME in any sector bidding for UK public sector contracts every month or so.
• You want first drafts of quality and Selection Questionnaire answers from your own evidence, exported to Word.
• You need help with social value answers mapped to the TOMs framework.
• You want to check fit and pass/fail requirements before committing time to a bid.

Where AI Tender Writer falls short

• UK public sector focus: not built for private-sector RFP libraries at enterprise scale.
• No human strategist, team interviews or presentation coaching.
• Best results need a well-filled evidence library, which takes time to set up.
• You still edit, review and submit every answer yourself.

4. Thornton & Lowe: Best for public sector bids across sectors¶

Thornton & Lowe pricing

When to choose Thornton & Lowe

• You have a multi-lot or framework bid and want a managed service with bid management included.
• You want writers who are directly employed rather than drawn from a freelance pool.
• You are also interested in tender search or pipeline software from the same group.

Where Thornton & Lowe falls short

• Prices are not published.
• Better value on larger bids than on small, routine tenders.
• As with any agency, you need to free up internal time for interviews and reviews.

5. Bid Writing Service: Best for full outsourced bid writing¶

Bid Writing Service pricing

When to choose Bid Writing Service

• You want to hand the whole bid over to an outside team.
• You have in-house writers and want a review-only service before submission.
• You need support with a framework or Selection Questionnaire.

Where Bid Writing Service falls short

• Prices are not published.
• Agency fees may outweigh the value of small contracts.
• Handing over the whole bid can leave you with less in-house capability.

6. Tender Consultants: Best for sector-specialist bid writing¶

Tender Consultants pricing

When to choose Tender Consultants

• You want a consultant who already knows your sector's language and buyers.
• You are a first-time bidder and need help getting tender-ready.
• You want to choose the level of support bid by bid.

Where Tender Consultants falls short

• Prices are not published.
• Capacity can vary by sector, so check availability early on short deadlines.

7. Complete Tenders: Best for senior consultants on complex bids¶

Complete Tenders pricing

When to choose Complete Tenders

• You have one complex, high-value bid and want senior consultants on it.
• You want help with tender strategy as well as the writing.
• You bid in both public and private sectors.

Where Complete Tenders falls short

• Prices are not published.
• Less suited to a high volume of small, routine bids.

8. Creative Tenders: Best for dedicated bid writing support¶

Creative Tenders pricing

When to choose Creative Tenders

• You bid regularly and want a retained, dedicated writer rather than one-off help.
• You want a mix of ongoing support and help with individual tenders.
• Most of your bids are public sector.

Where Creative Tenders falls short

• Prices are not published.
• A smaller team than the largest firms, so check capacity for peak periods.

9. Upwork (freelance bid writers): Best for finding a freelance bid writer quickly¶

Upwork (freelance bid writers) pricing

When to choose Upwork (freelance bid writers)

• You need a single answer written or edited quickly.
• The job is small and well defined, such as proofreading or cutting an answer to a word limit.
• You are comfortable vetting and managing a freelancer yourself.

Where Upwork (freelance bid writers) falls short

• Quality and UK public sector knowledge vary widely between freelancers.
• You manage the writer, the brief and the deadlines yourself.
• Less suited to full bids that need interviews with your team.

UK bid writer pricing summary¶

What does a bid writer do?¶

A professional bid writer does more than write. On a typical public sector tender they read the specification and evaluation criteria, build a compliance matrix so nothing is missed, interview your operations team to pull out the detail that proves you can deliver, and then draft answers that follow the marking scheme. They also check word counts and formatting rules, make sure your social value commitments are measurable, and review the whole submission for consistency before it goes in.

• Bid/no-bid advice: whether you meet the pass/fail requirements and have a realistic chance of winning.
• Compliance matrix: every requirement, question and attachment listed with an owner and deadline.
• Information gathering: interviews with managers to capture processes, KPIs and case studies.
• Drafting: quality answers, method statements, social value responses and executive summaries.
• Review: scoring the draft against the buyer's criteria, the way an evaluator would, and fixing gaps.
• Library building: turning finished answers into reusable content for the next bid.

Freelance bid writer vs agency vs AI: which is right for you?¶

An honest rule of thumb: hire a human bid writer when the contract is large relative to your turnover, when it is your first framework bid, when there is a presentation or interview stage, or when the question set is unusual. Use an AI tool when you bid often for similar contracts, when you already have a decent evidence base, or when fees would eat most of the margin on the contract. Many SMEs combine both: AI for first drafts on every bid, and a professional reviewer on the handful that matter most.

How to choose a bid writer¶

Buyer's guide: getting value from a professional bid writer¶

• Brief them early. A writer brought in five days before the deadline can only polish what you have. One brought in when the tender drops can shape the approach.
• Give them access to operations staff. The best answers come from the people who run the service, not from brochures.
• Supply evidence in advance: CVs, case studies with numbers, policies, certificates, KPI reports and customer feedback.
• Agree who owns compliance. The writer should produce a compliance matrix, but you sign the declarations and must be able to deliver every commitment.
• Check AI use. Under PPN 017, buyers may ask whether AI was used to prepare your bid, so know how your writer works.
• Ask for feedback analysis. Under the Procurement Act, unsuccessful bidders receive an assessment summary; a good writer will use it to improve the next bid.

Red flags when hiring a bid writer¶

• Guaranteed wins. Nobody can guarantee a public contract, and evaluators score each bid on its own merits.
• Success-rate claims with no definition. Ask how the rate is measured: per bid, per lot, or only on bids they chose to take.
• No questions about your operations. A writer who does not interview your team will write generic answers.
• Recycled text from other clients. Evaluators notice generic content, and it may breach confidentiality.
• Unclear ownership. Make sure you keep the rights to the final answers so you can reuse them.

How much does a bid writer cost in the UK?¶

Most UK bid writing firms do not publish prices, and none of the firms above list fixed fees on their sites, so treat any figure you see quoted online with caution. Fees usually depend on three things: the number and length of quality questions, the time until the deadline, and how much information gathering the writer has to do. A review of your own draft costs far less than a full write. For regular bidders, retained arrangements can bring the per-bid cost down. Compare that with an AI tool on a flat monthly subscription, and the maths often favours AI for routine bids and a human writer for strategic ones.

Related guides: bid writing: the complete UK guide, best bid writing services, best freelance bid writers, best bid consultants UK and best AI bid writing software.