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Who we are

ISG is an international construction services company delivering fit out, construction, engineering services and a range of specialist solutions.

Consistent delivery is what differentiates our business. Our customers have confidence in what to expect every time they choose to work with us; regardless of where in the world, no matter what service we provide or the sector they are in. Whether theirs are unique, bespoke developments or projects of global significance, both international brands and small, local organisations trust ISG to serve their needs in a consistent way - on time, to a high quality and on budget.

But not everything about us is predictable. In fact, we are known for our innovative approach, our commitment to a more sustainable future and for employing the most talented and collaborative people in the industry.

Our ability to deliver consistently great customer service across geographies, sectors and services, is a defining factor. It enables us to build strong, long-lasting relationships with customers and develop fresh and relevant solutions to their evolving needs.

By setting the standard for construction services, ISG has become the partner of choice for both global and local organisations building, refurbishing or fitting out their spaces. We are also focused on the communities where we work – employing talented local people and building networks of local suppliers.


Our strategy

  • Further improve our leading positions in the London office fit out and UK retail market
  • Focus on increasing repeat business from framework and blue-chip multinational customers 
  • Increase our geographic reach and market penetration where there is demand from our customers

  • Expand on our established engineering services offer to deliver data centers for new customers in new geographies
  • Further establish ourselves in new high-growth global sectors such as Hospitality
  • Grow our specialist services under the Realys and Commtech brands

Being a sustainable business

We want to be a great company in more ways than one – today and in the future. See how we're achieving this via our 2020 Sustainability Vision.


Our companies

The businesses in our Group all have one thing in common. Regardless of the geography they operate in, the services they are providing, or the sectors they are working in - they are all dedicated to delivering consistently high-quality outcomes through the best possible customer service.

That is why we say we are setting the standard for construction.

setting the standard


Realys disrupts traditional models to provide step-change design, project and portfolio solutions for the built environment.

Commtech Asia

Providing independent commissioning management and associated services to all industries reliant on mechanical & electrical building services systems for business operations.


The Academy is our global learning and development facility, offering high-quality learning and development opportunities for our people.

Similarly we require a talented and engaged supply chain and the provision of training is a key differentiator in building long-term and valued relationships. We have also extended this offering to our customers, offering bespoke training courses in line with our customers' own training and development needs.


Our policies

View our full list of policies, now available to download.

Our policies