How to Win Larger Tier 1 and Tier 2 Projects

Most engineering and manufacturing businesses that want to grow eventually hit the same ceiling: they can win a steady flow of smaller jobs, but the larger Tier 1 and Tier 2 contracts they need to change scale keep going to a shorter list of familiar names. It rarely comes down to price or even capability. It comes down to whether the buyer believes the business can be relied on at that size of contract.

Tier 1 main contractors and Tier 2 specialist contractors carry real exposure when they bring a new supplier onto a large project — programme risk, financial risk, quality risk, and their own reputation with their client. They manage that exposure by sticking with suppliers who have already proved themselves, and by setting approval hurdles that smaller or unfamiliar businesses struggle to clear. Winning larger work means removing those objections systematically, not simply chasing bigger enquiries and hoping.

This article sets out why smaller engineering businesses get excluded from larger project work, what buyers are actually assessing before they will trust a new supplier, and the practical steps that move a business from being invited to quote to being seriously considered for contracts at £200k and above.

Why do larger contractors exclude smaller or unfamiliar suppliers?

A Tier 1 main contractor placing a £500k subcontract package is not primarily assessing your product or price. They are assessing what happens to their programme and their reputation if you fail to deliver. A late or defective package from a subcontractor becomes their problem with their client, and the procurement and commercial teams who select suppliers are measured on avoiding that outcome, not on finding the cheapest bidder.

That risk aversion produces a predictable pattern: known suppliers with a track record on comparable projects get invited first, approved supplier lists are hard to join, and new suppliers are asked for evidence — accreditation, financial standing, references, capacity — before they are asked for a price. A business that has only ever delivered smaller packages has none of that evidence yet, which is why it keeps being quoted against, rather than being asked to bid.

What are larger buyers actually assessing before they will trust you?

Most of that evidence takes time to build and cannot be manufactured for a single tender. That is why the businesses that break into larger project work do it deliberately, over a series of contracts, rather than by responding well to one large enquiry.

How do you build a track record large enough to be trusted?

The route in is rarely a leap straight to the largest available contract. It is a sequence of projects, each somewhat larger or more complex than the last, deliberately chosen and delivered so they can be used as evidence for the next approach. A business that has completed three £150k packages cleanly, with named references willing to speak to a new client, is in a fundamentally different position from one asking to be trusted with £500k on the strength of a portfolio of much smaller jobs.

1. 01Identify the specific Tier 1 and Tier 2 contractors you want to work with, and find out what their approved supplier process actually requires.
2. 02Select and deliberately pursue projects that are a genuine step up in scale, not a repeat of your existing size band.
3. 03Close the accreditation, insurance and financial-standing gaps that will otherwise disqualify you before evidence of capability is even considered.
4. 04Agree with satisfied clients, in advance, that they will act as a reference for future approaches — do not assume goodwill will be there when needed.
5. 05Build a short, specific capability statement for each target contractor, referencing real projects at a comparable or adjacent scale.

Should you wait to be invited to tender, or approach contractors directly?

Waiting is the default and it is why growth stalls. Larger contractors build their invited-supplier lists from suppliers they already know, from recommendations, and from direct approaches that land at the right time against a real upcoming requirement. A business that only responds to enquiries that come to it is competing for a small pool of opportunities that everyone else can also see.

The alternative is targeted business development into named contractors: identifying the buyer, estimator or supply chain manager responsible for the categories of work you can deliver, engaging them before a tender is issued, and being positioned as a known, credible option by the time the opportunity is live. This is slower and less immediately visible than responding to enquiries, but it is what actually changes which list you sit on.

What has to change internally, not just commercially?

Winning the work is only half the problem. A business used to smaller contracts often lacks the internal processes larger buyers expect once you are on their supply chain: formal change control, programme reporting, health and safety documentation appropriate to the scale, and a named commercial contact who can be reached quickly if something goes wrong. Buyers who have been burned by a supplier that could sell but could not deliver at scale will ask about these things directly, and vague answers are as damaging as gaps in the accreditation itself.

• A defined project management and reporting process, not one that is improvised for each contract.
• Health and safety documentation and site processes that match the expectations of a larger contractor's own audits.
• Capacity planning that can show, credibly, that a new large contract will not compromise existing commitments.
• A commercial owner for each contract who is known to the client and reachable — not routed through general enquiries.

Common mistakes when trying to move up to larger project work

1. 01Bidding for a contract several multiples larger than anything previously delivered, with no intermediate step to build credibility.
2. 02Treating accreditation and insurance as paperwork to sort out later rather than as a gate that blocks the approach entirely.
3. 03Relying on price to compensate for an absent track record, which larger buyers read as a red flag rather than an advantage.
4. 04Waiting passively for tender invitations instead of approaching target contractors' supply chain teams directly.
5. 05Winning a larger contract without first confirming internal capacity and delivery processes can actually support it.

How do you measure progress towards larger project work?

• Average contract value won, tracked over time against the trend rather than a single large win.
• Number of named Tier 1/Tier 2 contractors you are approved with or actively engaged with.
• Proportion of enquiries that originate from direct approach rather than inbound tender invitation.
• Accreditation and documentation gaps closed against a defined target list of requirements.

What to do next

Start by establishing, honestly, what is currently stopping larger contractors from considering your business — accreditation gaps, absence of comparable references, capacity concerns, or simply not being on their radar. Build the evidence deliberately over a small number of contracts, and put direct business development into named target contractors alongside it. Evans Sales Consultancy works with engineering and manufacturing businesses on exactly this transition: defining target accounts, building the commercial case for larger buyers, and providing the fractional sales leadership to run the process consistently.