Office fit out, refurbishment and design services

We know that offices are rarely just places to house people – we make sure your office is as resilient and agile as your business.

Businesses in the midst of change require specialist teams that understand the related pressures and complexities. At ISG, we know the office is rarely just a place to house people and systems; it is a key part of your business infrastructure. It forms the backbone for sophisticated technology and operations. It plays a key role in attracting and retaining the best people. We understand that an office fit out must be as resilient and agile as the business that occupies it.

ISG has a strong legacy of creating offices that touch every aspect of the modern workplace. From new corporate headquarters, refurbished technology-led offices, to the smaller moves and changes that keep companies competitive, we take our roles as enablers of business very seriously. We ask tough questions, challenge conventional methods and ultimately deliver offices that are more resilient to the future than their counterparts. 

We care deeply about helping our customers meet their business goals, and our extensive track record, exceptional client list and rate of repeat business prove it. We are the number one office fit out company in central London and an office specialist across the world. Whether it’s a new build project, office refurbishment or fit out, we provide services for developers, landlords, owner-occupiers and tenants in London, across the UK and in Europe, the Middle East and Asia. 

We have specialist teams for each stage of the office lifecycle and for all budgets. We have a vast pedigree of projects for global blue-chip clients, public sector organisations, media companies and smaller start-ups. Our experienced teams support landlords in transforming new and existing building stock into state-of-the-art prime space that attracts the best tenants. We recognise the ever-evolving needs of today’s occupiers, and we help our customers achieve impressive occupancy rates.



The power of place

ISG’s research and insight report, ‘The power of place’, is available to download now.

The impact of shifts in human behaviour on workplace. What does it mean for businesses and their people in the new era?

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Strength to strength. Shoulder to shoulder. End to end.

We are proud of our heritage in the commercial offices sector. This brochure is an overview of our global capability working across our four service lines of fit out, technology and construction.

Our core services

ISG is different. Our origins in fit out means we have meticulous attention to detail and focus on the client’s needs and business drivers like no other, and we know that every project is a technology project. Which is why we acknowledge our service offer is equally about fit out, technology and construction.

Fit out

Our track record reveals broader experience across a wider range of projects than any other provider in the market.


Our dedicated technology solutions team capable of advising and implementing for our clients across all sectors.


We have a strong track record of construction and engineering projects, from single-storey construction to large-scale.

If you would like to speak to ISG about any requirements you may have, please let us know by filling in the form below.