Home (2025)

UK Capital Project Experts

Mitigating risk and improving productivity across Renewables, Infrastructure and the Built Environment.

For domestic renewable energy enquiries, please click here

Supporting projects that make a difference

Since 2009, SPI has played a crucial role in the delivery of the UKs most important infrastructure projects through Engineering Management, Design Integration, Project Controls and Contracting.

Working client-side to deliver over £40bn of critical infrastructure – the majority of which are decarbonising projects. Delivering high productivity, programme improvement, and risk mitigation which has saved our clients over £300m in cost overruns and waste. 

Find out more about our story

Renewable energy solutions for your business

Decarbonisation is at the core of SPI’s mission, we’ve helped clients save millions of tonnes of CO2 whilst also improving operating profits. 

We help you to transition to clean energy from fossil fuels, increasing energy security and reducing grid reliance.  

If you’re exploring options to reduce CO2, reduce costs, increase resilience or find new revenue opportunities, SPI are here to help.

From initial consultations and feasibility assessments to long-term operation and maintenance services, we provide end-to-end support to make your transition to renewable energy seamless and cost-effective, delivering Solar PV, Battery Energy Storage (BESS) and Heat Pumps.

Our focus on efficiency, resilience, and sustainability means we can help businesses future-proof their renewable energy strategy — all while meeting regulatory and environmental goals.

With whole-life contracting and EPC-only services available, we can tailor our renewable energy solutions for businesses to your exact requirements.

Learn more about our renewable energy solutions for your business

Capital Delivery Solutions

We work with national and regional assets owners in both the public and private sectors to deliver capital programmes, portfolios and major projects. 

Our expertise has been built from years of multi-disciplinary engineering integration, supporting the  largest the most complex infrafratructure projects across the country from railways, highways, airports and utilities.

As one of the country’s most effective integrators, we work client-side to take on the risk of engineering integration for projects of all complexities.

Our key infrastructure competencies include:

  • Engineering Integration

    Integration, PMO, Coordination

    We integrate with your existing people, processes and technology, delivering expert resources to take on your engineering management risk to keep even the most complex of projects on track.

  • Co-located Teams

    Resources, Experts, Engineers

    Working at the heart of your project, we deploy expert resources to integrate with your teams to ensure efficient collaboration and project acceleration.

  • PMO Solutions

    Smartsheet, Construction, Engineering

    Our Smartsheet based management systems are proven to reduce time, risk and cost. With thousands of users delivering hundreds of projects, our solutions deliver significant ROI for clients across a wide range of sectors.

Learn more about our capital delivery solutions

Who we work with

What we do

  • Consulting

    Consulting

    We start by looking at where your business is currently, what you want to achieve and help you understand how to get there. Through strategy and process creation, implementation, expert advice and ongoing support we can help you improve productivity, reduce costs and fully utilise your teams

    Find out more

  • Project Management
    & Delivery

    Project Management & Delivery

    Whether you’re at the initiation stage, in construction or looking to optimise your processes, our range of solutions are designed to help. From project management systems to physical resource, we can help you recover, deliver and manage your project with ease

    Find out more

  • Technology

    Technology

    Technology can be transformational for a business, however far too often this technology isn’t integrated properly and is therefore not fit for purpose. We help you adopt the right technology, in the right way to enable your digital transformation

    Find out more

Think smart, think SPi

Transforming businesses through cutting edge methodologies and technologies

Let’s talk