Gem Underwriting Agency
Insurance • 
London, England, United Kingdom • 1-10 Employees
Company overview
| Headquarters | 123 Minories, London, England EC3N 1NT, GB |
| Phone number | +448001116768 |
| Website | |
| NAICS | 52 |
| Keywords | Liability Insurance, Contractors & Construction Risks, Delegated Authority Underwriting, First Class Broker Service & Support, High-Risk & Complex Trades, Licensed Asbestos Work, Public & Employers' Liability |
| Founded | 2023 |
| Employees | 1-10 |
Key Contact at Gem Underwriting Agency
Glenn Marshall
Managing Director & Chief Underwriting Officer
Gem Underwriting Agency Email Formats
Gem Underwriting Agency uses 2 email formats. The most common is {first name} (e.g., john@gemuw.com), used 66.7% of the time.
| Format | Example | Percentage |
|---|---|---|
{first name} | john@gemuw.com | 66.7% |
{first initial} | j@gemuw.com | 33.3% |
About Gem Underwriting Agency
Gem Underwriting Agency is a specialist Managing General Agent (MGA) offering liability insurance solutions across the UK. We work exclusively with brokers to provide expert-led underwriting for Employers’, Public, and Products Liability, with a strong focus on construction and high-risk trades. Operating under Delegated Authority, our team brings decades of experience from the London Market and MGA environments. We take a pragmatic, responsive approach built on real conversations and long-term broker partnerships. We offer same-day Contract Certain Terms and issue policy documents within 24 hours, because speed and certainty matter. Whether you're placing straightforward or niche, complex liability risks, Gem Underwriting is here to help you deliver with confidence. About Gem Underwriting Gem Underwriting Agency was founded in 2023 to provide expert liability insurance solutions for UK brokers. We specialise in Employers’, Public, and Products Liability for high-risk industries such as construction, contracting, and specialist trades. Backed by decades of London Market and MGA experience, we combine underwriting discipline with responsive service and a strong commitment to broker relationships. Operating under Delegated Authority, we pride ourselves on making fast, fair, and consistent decisions without sacrificing technical integrity. Led by Managing Director and CUO Glenn Marshall, Gem Underwriting is a trusted partner for brokers who value expertise, efficiency, and a hands-on approach to placing complex liability risks. We don’t just quote risks. We underwrite them.
Gem Underwriting Agency revenue & valuation
| Annual revenue | $342,220 |
| Revenue per employee | $86,000 |
| Estimated valuation?This valuation is estimated based on industry average for the Insurance industry and current estimated revenues | $1,100,000 |
| Total funding | No funding |
Employees by Management Level
Total employees: 1-10
Seniority
Employees
Employees by Department
Gem Underwriting Agency has 1 employees across 1 departments.
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Number of employees
Funding Data
Gem Underwriting Agency has never raised funding before.
Gem Underwriting Agency Tech Stack
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United States
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Frequently asked questions
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