Our Clients

Supporting infrastructure across the UK & beyond

At Mercury3 Consult, client satisfaction is our greatest benchmark of success. Our clients return to us time and again, not just because we deliver, but because we consistently go above and beyond.

We build long-term relationships rooted in trust, collaboration, and a deep understanding of the challenges our clients face. It’s this commitment to excellence that earns us the privilege of working on some of the most high-profile and complex projects in the industry.

But don’t just take our word for it. Here’s what our clients have to say.

I would have no hesitation working with Mercury3 Consult again … Thank you … for all that you have done to help us deliver this project.

Ray Shipley, ETCS Training Integration Lead

East Coast Digital Programme

Blurred people crossing a platform at rush hour at London Kings Cross Station, UK

The Mercury3 staff quickly integrated into the team and understood the project’s needs. The project management team worked closely with our regional clients and proactively led the stakeholder engagement. They kept the engineering team focused on the delivery despite the disruptions caused by COVID and the ‘new’ ways of working. I have no doubt that the Mercury3 team were core to the overall success of the project.

Project colleague

Network Rail

Moving tram train driving through a train station

During challenging times, this has been one of the more organised projects to have worked on. There was a clear plan, which was implemented to a high level. The project manager was well aware of the risks and provided appropriate mitigations.

Gurmeet Sembi

Lead Estimator, Network Rail - ETCS Long Term Deployment Plan (LTDP)

Trains heading to Victoria Station, London, are seen with Battersea Power Station behind

Due to the nature of these types of projects, producing an all-encompassing clear remit is often difficult to achieve. The project, therefore, had to manage additional scope & changes within its tight schedule. This was managed well & within budget mainly due to the good work practises & procedures instilled from the outset.

B Langstone, Senior Planner

Arcadis

Three team members reviewing a project plan on a wall, with one pointing to it.

The work was professionally managed and delivered. Any contact with Mercury3 Consult was always helpful, understanding of the client’s needs and flexible and adaptable.

Andy Saunders, Senior Programme Manager

Network Rail

Two team members collaborating over laptops in the office.

The project manager for our electrical vehicle charger design projects was exemplary. He was incredibly easy to work with, fostering a dynamic and flexible team environment that helped us navigate challenging projects with tight deadlines. His collaborative approach allowed us to address difficulties without feeling pressured, ultimately leading to successful project outcomes.

Senior Design Engineer

Network Rail Engineering Services

Electric vehicle charging space marked on the ground

Who We Work With

We’re proud to support a diverse portfolio of clients across the transport and infrastructure sectors, including:

Wilkinson Lloyd

Train tracks illustrating Fibre Optic Acoustic Sensing (FOAS) technology

Technical Advisory Support for Ramboll’s Synthetic Environment Bid

The Synthetic Environment (SE) is a pioneering tool developed under the T190+ Programme, aiming to transform Britain’s railways by reducing signalling costs and enhancing sustainability. Central to this initiative is the deployment of in-cab signalling via the European Train Control System (ETCS), which will significantly reduce the need for traditional lineside infrastructure.

Toronto skyline and Lake Ontario aerial view, Toronto, Ontario, Canada.

Driving Connectivity in Canada Through Specialist Project Management

When CPCS sought to strengthen their consultancy team with specialist project management expertise, they turned to Mercury3 Consult. As part of our expanding partnership, we are proud to support the Eglinton West Crosstown Extension (ECWE) in Greater Toronto, Canada.

Network Rail car park during installation of electric vehicle chargers

Powering a Greener Network: EV Infrastructure & Safety Delivery

As the UK pushes toward net zero, organisations like Network Rail are taking significant steps to decarbonise their operations. Between 2022 and 2024, Mercury3 Consult supported the National Road Fleet Transformation (NRFT) Programme, helping to design and deliver scalable electric vehicle (EV) infrastructure nationwide. By combining programme management, safety assurance, and construction...

Team members sitting a table in the office, looking at a laptop

Delivering Access for All Through Expert Portfolio Management

The Access for All (AFA) programme, funded by the Department for Transport, aims to improve accessibility at UK railway stations by providing an obstacle-free, level-access route between drop-off locations, the station entrance and all platforms.

Driving Clarity & Collaboration for Cardiff Crossrail

Transport for Wales (TfW) is delivering a major infrastructure programme centered on Cardiff Central Station. This programme is a series of interconnected infrastructure projects, including the high-profile Cardiff Crossrail project.

Empty train platform at Victoria station

Project Management Expertise for Station Access Charges & Industry Consultation

Industry consultation to review Station Access Charges, including Qualifying Expenditure and Long-Term Charge proposals as part of the ORR Periodic Review 23 consultation for the UK’s Managed Stations and Franchised Stations and Network Rail’s Control Period 7 Strategic Business Plan.

Improving Customer & Stakeholder Management Through Strategic Project Management

The Network Rail Executive Leadership Team sought assurance and evidence of processes against sixteen key business topics through the GRAI programme—Governance, Risk, Assurance, and Improvement.

Outside London King's Cross Station, UK (shutterstock_797469370)

Project Management for Customer Experience & Accessibility at Managed Stations

Network Rail’s Customer Experience & Accessibility team required a Project Manager to lead the team’s reorganisation and governance structure to assess workload, volume, and value of work. The role also involved providing support to the Great British Railway Transition Team.

Embedding Expertise in Project Management Across the Digital Railway Programme

Since May 2017, Mercury3 has provided a range of resources with previous Digital Railway experience (e.g. on Cambrian or East Coast) as the project has evolved, including: engineering manager, programme manager, project interface lead, project manager and planner and business change and operations specialists.

An LNER Azuma train approaching a platform at Peterborough Station

Strategic Project Mobilisation for the ETCS Long Term Deployment Plan (LTDP)

The Long Term Deployment Plan proposes a partnership between Network Rail, train and freight operating companies, the supply chain and the Department for Transport; to work together to implement a European Train Control System (ETCS) across the UK rail network.

Driving Revenue & Clarity Through Freight Contract Management

The objective of the project was to identify Freight Connection Contracts that were missing and to bring new contracts to freight end users. The missing connections were contracts that had either not been set up or their owners/lessees had changed, and the agreement had not been updated.

Strengthening Operational Safety Through Signaller Development & Competency Management

Supporting Network Rail’s safety vision of ‘Everyone Home Safe Everyday', Mercury3 Consult were engaged to work with the client team to help deliver elements within the 21st Century Operations portfolio.

Inside Manchester Rail Operating Centre (ROC)

Enabling Operational Change at Manchester ROC Through Strategic Engagement

The Manchester ROC Traffic Management is a ‘change and engagement’ led project which aims to improve operating performance by: reducing train delay, improving passenger information and improving the working environment for operations staff.

Project Managing the Portable ETCS Feasibility Study

The European Train Control System (ETCS) is part of the rail industry’s programme to roll out the introduction of modern signalling and train control technology across the network, which will increase capacity, reduce delays, enhance safety and drive down costs.

Leading Business Change for TRU Digital Train Control Deployment

Adopting and implementing a Business Change Strategy was identified from lessons learnt across Europe as a critical enabler to the safe and successful deployment of ETCS and a TM system. Therefore, Mercury3 were instructed to lead this workstream and deliver alongside Arcadis on the project’s behalf.

Four team members gathered around a project plan in the office, smiling at the camera

Delivering Operations Expertise to Support the Transpennine Route Upgrade

The Transpennine Route Upgrade (TRU) programme is a £2.9bn programme of works, tasked with delivering various strategic outputs including journey time improvements and capacity increases between Manchester and York, as part of the overall Northern Powerhouse works.

A train travelling over a bridge across a river

Providing Project & Bid Leadership for TRU’s West of Leeds Alliance

An ETCS-fitted Class 180 at NR's Rail Innovation & Development Centre. NETWORK RAIL

Delivering Expert Consultancy for the Rail Innovation & Development Centre Test Track (RIDC)

Platform at Darlington Station at sunset

Enhancing Station Longevity through Specialised Asset Management Expertise

At Mercury3 Consult, we possess specialised knowledge from both the perspective of an asset owner, such as Network Rail, and that of a TOC. This unique expertise positioned us well to work with Costain, our StarThree framework partners, to provide the necessary support to the DfT.

Strategic Asset Management for TfW Station & Depot Transfer

In March 2020, the Core Valley Lines were successfully transferred from Network Rail (NR) to Transport for Wales (TfW). Building on this, TfW proposed a similar transfer process for up to 193 stations and five depots under a long-term lease arrangement. To facilitate this, a comprehensive business case process was required, consisting of a Strategic Outline Business Case (SOBC), an Outline...

People walking through London Liverpool Street Station

Transforming 21st Century Rail Operations in Anglia

Due to a growing increase in train operations and train operators in the Anglia region, a review of the complexity of operations and associated processes was required. The ORR, and independent reports, suggested a focus on a change in the operating model for effectively handling 21st-century demands.

The WH Davis team gathering to launch their Whiteboard Control Room at the Shirebrook site.

Strengthening Production Control Through Visual Management at WH Davis

Mercury3 Consult were engaged to design & implement a Whiteboard based Control Room and introduce visual management & project management principles aligned to WH Davis’s operational needs. Using a simple four-phase lifecycle approach – familiarisation, design & installation, application & embedding, & launch – Mercury3 Consult worked closely with the leadership & operational teams to ensure...

Aerial view of Piccadilly train station, Manchester City Centre at night.

Transforming Network Rail’s Asset Management with Citadel

Network Rail embarked on a major digital transformation, replacing its legacy Operational Property Asset System (OPAS) with Citadel, a new Enterprise Asset Management System. Mercury3 Consult was engaged to ensure a smooth transition, supporting the National Performance and Support team through every stage of implementation and organisational change.

Exhibits on the Turntable Roads at the National Railway Museum, York

Safeguarding Heritage Rail Assets at the National Railway Museum

Mercury3 Consult was appointed to provide independent technical advisory support, helping ensure the works were planned and delivered in line with appropriate railway engineering standards and asset management best practice.

Automatic ticket barriers at London Paddington station

Championing Inclusive Design Across the UK Rail Network

Mercury3 Consult was engaged to provide ongoing coordination, project management, and administrative support to BEAP, ensuring the panel operate effectively and delivers consistent, high-quality advice across a broad portfolio of projects.

Day view landscape British train on Railroad.

Programme Management Support for Network Rail’s SCO Rail Vehicle Portfolio

Mercury3 Consult supported the programme through structured reviews, clear performance reporting and practical coordination across stakeholders. This included maintaining oversight of delivery plans, surfacing risks and issues, and supporting timely decisions with concise, evidence-based insight.