About

A senior, independent infrastructure advisory practice.

Chartered independent professionals providing honest advice without conflict.

Who we are

Built on independence and seniority.

CALON is a senior, independent infrastructure advisory practice. We advise the organisations that commission infrastructure, never the contractors who build it. We sit on one side of the table only, the client side, and will not take work that places us in a delivery supply chain.

The practice is built around chartered, director-level professionals with decades of experience leading and assuring major projects and capital programmes across the public sector, energy, water and transport. Our work spans the front end of a programme or major project, from business case through procurement, and the running of delivery, from gateway assurance through to recovery advisory.

We work remotely and on a fixed-fee basis. The scope and the price are agreed in writing before any work begins, and the output is a written report delivered to a defined timetable. We do not bill by the hour, and we do not run open-ended retainers.

How we are different

Three rules. Every engagement.

The disciplines that distinguish CALON from a generalist consultancy.

Client-side only.

We advise the body that owns the programme. We do not sit in any contractor or consultant supply chain.

Assurance, not delivery.

We assess and advise. We do not design, build, or take responsibility for execution.

Fixed fee, always.

Scope and price agreed in writing before any work begins. No time-and-materials. No open-ended retainers.

Experience

Programmes we have worked on.

Representative areas of experience behind the practice, across regulated infrastructure. Clients and projects remain anonymous.

Local authority

Capital programmes

Gateway reviews, business cases, and governance on sub-threshold and major capital schemes.

Highways

Major roads

Procurement strategy, commercial oversight and programme controls on major-road investment.

Rail

Rail infrastructure

Stage-gate assurance, NEC contract management, and governance across multi-disciplinary rail works.

Water

Regulated water programmes

Commercial management, NEC oversight, and governance on regulated water investment programmes.

Energy

Electricity transmission

Programme management, commercial assurance and contract oversight across electricity transmission, including substations and cable routes.

Utilities & networks

Utilities and networks

Programme controls, commercial assurance and contract oversight across utilities and network investment programmes.

Across every sector, our work spans project, operational and construction management, commercial oversight, contract advice, governance, and assurance.

The practice

How CALON is constituted.

Registered

Calon Infrastructure Limited
Company No. 17255416
Incorporated in Wales.

Registered office

4th Floor, 14 Museum Place
Cardiff CF10 3BH

Professional indemnity

Hiscox
£5m PI · £5m PL · £10m EL

Data protection

ICO registered: ZC169059
Privacy notice