Insights

Sustainability Focus ISG has been recognized for its commitment to sustainability, winning the Best of BREEAM 2024 Award for Refurbishment & Fit Out. This indicates a strong focus on sustainable construction practices, presenting sales opportunities for eco-conscious clients seeking green building solutions.

Industry Partnership The partnership between ISG and Open Doors to promote careers in construction opens avenues for collaboration with educational institutions and organizations focused on workforce development. This partnership can lead to opportunities to provide training programs or recruit skilled individuals entering the construction industry.

Innovation in Skill Development ISG's launch of the Construction Skills Academy at HMP Birmingham demonstrates a commitment to developing the workforce. Sales representatives can leverage this initiative to offer customized training solutions to other organizations looking to upskill their employees in the construction sector.

Strategic Acquisition The acquisition of Cathedral Contracts Ltd expanded ISG's retail fit-out operation significantly. This presents potential sales opportunities to offer integrated construction solutions to retail businesses looking to enhance their physical spaces or expand their operations.

Thought Leadership in Industry Trends By releasing research papers on mastering skills and talent development, ISG showcases thought leadership in the construction sector. Sales professionals can leverage these insights to engage with clients looking to optimize their workforce and stay ahead of industry trends.

ISG Tech Stack

ISG uses 8 technology products and services including Linkedin Insight Tag, Microsoft Clarity, Sitecore, and more. Explore ISG's tech stack below.

  • Linkedin Insight Tag
    Analytics
  • Microsoft Clarity
    Analytics
  • Sitecore
    Content Management System
  • Polyfill
    Javascript Libraries
  • Windows Server
    Operating Systems
  • Google Tag Manager
    Tag Management
  • X-Content-Type-Options
    Web & Portal Technology
  • Microsoft IIS
    Web Servers

Media & News

ISG's Email Address Formats

ISG uses at least 2 format(s):
ISG Email FormatsExamplePercentage
First.Last@isgplc.comJohn.Doe@isgplc.com
86%
FLast@isgplc.comJDoe@isgplc.com
9%
First.Middle@isgplc.comJohn.Michael@isgplc.com
3%
FirstLast@isgplc.comJohnDoe@isgplc.com
1%
LFirst@isgplc.comDJohn@isgplc.com
1%
First.Last@isgltd.comJohn.Doe@isgltd.com
99%
First.MiddleLast@isgltd.comJohn.MichaelDoe@isgltd.com
1%

Frequently Asked Questions

Where is ISG's headquarters located?

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ISG's main headquarters is located at Aldgate House 33 Aldgate High Street London, London EC3N 1AG GB. The company has employees across 6 continents, including EuropeAsiaNorth America.

What is ISG's phone number?

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You can contact ISG's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is ISG's stock symbol?

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ISG is a publicly traded company; the company's stock symbol is QISGX.

What is ISG's official website and social media links?

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ISG's official website is isgltd.com and has social profiles on LinkedIn.

How much revenue does ISG generate?

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As of July 2025, ISG's annual revenue reached $750M.

What is ISG's NAICS code?

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ISG's NAICS code is 23 - Construction.

How many employees does ISG have currently?

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As of July 2025, ISG has approximately 2.1K employees across 6 continents, including EuropeAsiaNorth America. Key team members include Chief Executive Officer: M. B.Chief Human Resources Officer: J. F.Chief Technology Officer: P. M.. Explore ISG's employee directory with LeadIQ.

What industry does ISG belong to?

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ISG operates in the Construction industry.

What technology does ISG use?

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ISG's tech stack includes Linkedin Insight TagMicrosoft ClaritySitecorePolyfillWindows ServerGoogle Tag ManagerX-Content-Type-OptionsMicrosoft IIS.

What is ISG's email format?

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ISG's email format typically follows the pattern of . Find more ISG email formats with LeadIQ.
ISG

ISG

ConstructionLondon, United Kingdom1001-5000 Employees

Who we are:
At ISG, our vision is to be the world’s most dynamic construction services company, delivering places that help people and businesses thrive. Our 2,800 worldwide specialists deliver unbeatable customer experiences fuelled by a fast-paced, ideas-driven culture.

What we do:
At ISG, we know places rarely just house people and systems; they form the infrastructure for people’s busy lives and businesses’ daily operations. We blend our unparalleled track record, sound processes and proven delivery methods with a fast-paced and agile culture, ensuring we deliver thriving places that are as agile and resilient as their occupants. 

How we work: 
Our years spent working alongside businesses and consultants to address complex building and space challenges mean we understand what constitutes a great delivery dynamic. We don’t do “means to an end”; instead, we believe in the open communication and collaboration that underpins strong relationships and creates enriching customer journeys.

Section iconCompany Overview

Headquarters
Aldgate House 33 Aldgate High Street London, London EC3N 1AG GB
Phone number
Website
isgltd.com
Stock Symbol
QISGX
NAICS Code
23 - Construction
Employees
1001-5000

Section iconFunding & Financials

  • $100M$1B

    ISG's revenue is in the range of $100M$1B

Section iconFunding & Financials

  • $100M$1B

    ISG's revenue is in the range of $100M$1B

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