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Triangle Electrical Services Employee Directory

ConstructionEngland, United Kingdom11-50 Employees

Triangle Electrical Services is a London-based contractor in the construction sector that specializes in life safety systems and electrical services. Founded over four decades ago by Michael Stewardson, the company is now led by his son Edward Stewardson. It holds SDI 19 certification and UKAS BSI ISO 9001:2015 certification, signaling formal quality management and safety standards.

Its client base includes the NHS, FM companies, schools, hotels, developers, main contractors, M&E companies, and surveyors, with projects spanning Greater London and the broader UK. The firm emphasizes planning and flexibility, guiding projects from design through handover to ensure outcomes align with client needs. Quality is supported by using branded equipment and materials, a minimum 12-month warranty, and a six-year workmanship guarantee.

Find Triangle Electrical Services employees' phone numbers or email addresses

Triangle Electrical Services Global Highlights

Location
Employees

Europe
18

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  • United Kingdom Of Great Britain And Northern Ireland
    18

North America
18

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  • United States Of America
    18

Triangle Electrical Services's Leadership

  • Owner & Ceo at Triangle Electrical Services
    E. S.
    Owner & Ceo
    Mobile Phone
  • Manager at Triangle Electrical Services
    D. T.
    Manager
    Mobile Phone
  • Electrician at Triangle Electrical Services
    B. G.
    Electrician
    Mobile Phone
  • Journeyman at Triangle Electrical Services
    O. E.
    Journeyman
    Mobile Phone

Triangle Electrical Services Employee Metrics

100%
50%
0%
2026
2025
  • Civil Engineering & Construction
  • Community & Social Services
  • Program & Project Management
  • Other

Contact profiles from Triangle Electrical Services

Name
Title
Contact
Location
Last Update
  • Owner & Ceo at Triangle Electrical Services
    E. S.
    Owner & Ceo
    Mobile Phone
    United Kingdom, England
    Sep 08, 2026
  • Manager at Triangle Electrical Services
    D. T.
    Manager
    Mobile Phone
    Aug 02, 2026
  • Electrician at Triangle Electrical Services
    B. G.
    Electrician
    Mobile Phone
    United Kingdom
    Aug 03, 2026
  • Journeyman at Triangle Electrical Services
    O. E.
    Journeyman
    Mobile Phone
    Aug 04, 2026

Frequently Asked Questions

What is Triangle Electrical Services known for?

Minus sign iconPlus sign iconTriangle Electrical Services was founded in 2007 and operates in the Construction industry. You can contact Triangle Electrical Services's main corporate office by phone at
+44-20-3617-****
. Explore Triangle Electrical Services's company overview page for more information.

What is Triangle Electrical Services's most common email format?

Minus sign iconPlus sign iconTriangle Electrical Services employees' email format typically follows the pattern of First.Last@triangle-electrical.com. Trying to find reliable and up-to-date employee contact data? Find more Triangle Electrical Services email formats with LeadIQ.

How many employees does Triangle Electrical Services have currently?

Minus sign iconPlus sign iconTriangle Electrical Services has approximately 17 employees as of September 2026. These team members are located across 2 continents, including Europe and North America.

Who are Triangle Electrical Services's key employees and leadership?

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As of September 2026, Triangle Electrical Services's key employees include:

  • Owner & Ceo: E. S.
  • Manager: D. T.
  • Electrician: B. G.
  • Journeyman: O. E.

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