What does a client check before appointing an engineering consultancy?
They check which disciplines you cover in-house, professional qualification and registration, and the level of professional indemnity insurance you carry. Then comparable projects, because an engineering appointment is fundamentally a judgement about whether you have already solved a problem of this type and scale.
A client is appointing engineers whose design will be built and whose errors would be expensive to discover on site.
Reviewed 4 August 2026
Scope and specifications
- Disciplines covered in-house
- What you do yourself versus what you subcontract.
- Professional qualification and registration
- The individual and corporate credentials.
- Sectors and project types
- Relevant experience is the main selection criterion.
- Project size range handled
- Determines whether you can carry the commission.
- Software and modelling capability
- Increasingly specified by clients.
- Team size and availability
- Whether the work can be resourced.
- Geographic coverage
- Where you can work and hold registration.
Documents buyers may need
| Document | What it proves | Where it belongs |
|---|---|---|
| Professional indemnity insurance certificateAsked at: appointment — usually a precondition | Cover level and validity | Publish it |
| Professional registration evidenceAsked at: prequalification | Registration of the practice and the responsible engineers | Publish it |
| Comparable project listAsked at: selection — the primary evidence | Projects of similar type, scale and sector | Publish it |
| Quality management certificationAsked at: prequalification | Quality system for design work | Publish it |
| Health and safety documentationAsked at: prequalification | Safety management and record | Publish it |
| Team profiles and qualificationsAsked at: proposal | Who will actually do the work | Publish it |
| Design responsibility and appointment termsAsked at: contract | Scope, deliverables and limits of liability | Publish it |
Details for a useful enquiry
- Project type, scale and location
- The basis of relevance.
- Disciplines required
- Determines whether you can serve the commission.
- Project stage
- Feasibility, design and construction support differ.
- Programme and deliverable dates
- Resourcing depends on it.
- Insurance and qualification requirements
- Frequently specified by the client.
- Procurement route
- Design-build and traditional differ substantially.
Questions suppliers ask
What is the single most persuasive thing to publish?
A project list with type, scale, sector, year and the specific role you played. Engineering appointments are judgements about relevant experience, and a specific list does more than any capability statement to establish that you have solved this problem before.
How should team capability be presented?
With named individuals, their qualifications and the projects they led. Clients appoint people rather than firms, and the ability to see who will actually do the work is what converts a shortlist into an appointment.
Should we disclose what we subcontract?
Yes. Clients discover it eventually, and discovering it after appointment damages trust. Being clear about which disciplines are in-house and which are partnered, and naming long-standing partners, is read as honesty rather than weakness.
Check which documents and standards your buyer needs; requirements vary by market, customer and contract.
Plact Research. Plact's editorial desk for buyer-evidence research. Industry standards, documents and buyer questions are researched and drafted with Plact's AI tools, then reviewed by Praveen Kavuri before publication. Every claim cites the standard, regulation or public source it rests on.
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