Reading a BOSA tender efficiently

An average BOSA notice is between 40 and 300 pages long between the announcement, specification, plans and administrative annexes. For a company that screens 20+ tenders per week, the question is not “how do I read it fully?” but “how do I decide in 3 minutes whether it is worth reading further?”

Where to start: the notice itself

On BOSA, each tender comes with a notice of 3 to 8 pages — this is not the specification but the summary. Five fields determine whether you need to read further:

1. Subject of the contract — one paragraph describing what is requested. If this does not match your core activity, stop here.
2. Duration and/or quantity — a 4-year framework contract for 200 pumping stations is very different from a one-off delivery of 3 pumps.
3. CPV code(s) — the European classification code. If the tender is classified as 42122000 (pumps) and you are a civil contractor, this is probably not for you.
4. Required accreditations (for works) — category and class. If you don’t have class 6 and the tender requires class 6, no need to read further.
5. Deadline and time — often 10:00 or 14:00 on a specific day. Late submissions are never accepted.

If these five fields give green light, it is worth opening the specification.

What to read first in the specification

Skip the administrative introduction. Go to:

• Technical description section — this is where the actual tender is. Often in a separate PDF (“specification”, “descriptive bill of quantities”, “technical sheet”).
• Award criteria — how will your offer be evaluated? Price (100%)? Price 60% + quality 40%? Lowest price only? That completely changes your strategy.
• Selection criteria — what do you need to prove to even be considered? References (what type, what minimum amount), turnover (how much, over how many years), certifications.

Only once these three sections are in order is it worth reading the administrative part.

The trap: annexes

For larger works, critical specifications often appear not in the main text of the specification but in the annexes — plans, bills of quantities, technical sheets. It is not uncommon for a tender titled “sewer replacement” to turn out, on reading the annexes, to be a tender for a pressure main under a motorway — a completely different type of work with a different risk profile and different subcontractors.

These annexes are not full-text searchable on BOSA. Your own tool (or process) must address that — otherwise you depend on the tender title, which is often misleading.

Asking questions

Every specification provides a question period — usually until 6 to 10 days before the deadline. Your questions are published anonymously, together with the answers, for all bidders. Two golden rules:

• Ask technical questions early, not at the last moment. If you only discover at D-3 that a technical specification contradicts an annex, it is too late to get the contradiction officially resolved.
• Formulate questions so the answer is binary (“Do you confirm that X is also accepted?”) — otherwise you often get vague non-answers.

Deciding whether to bid

For each dossier that passes the first triage, do a brief cost-benefit analysis:

• Preparation cost: how many hours of your team, which subcontractors?
• Win chance: how many competitors do you expect? How distinctive is your proposal?
• Margin if won: on a pure lowest-price tender, what margin remains?

If the expected margin × win chance is lower than the preparation cost, pass. Better to do three dossiers well than ten half-heartedly.

Where Tender Tracker helps

Tender Tracker performs the first triage automatically. Our AI relevance filter scores every BOSA notice against your business profile, searches the full specification (including annexes that are textually indexable), and checks your accreditation. What remains is a short list worth reading yourself.

Try 14 days free to see what that looks like for your company.