Insights

Strong Market Presence Atrium Underwriters Ltd is a prominent (re)insurance provider within Lloyd's market, with a history dating back to the 1930s. Their reputation for high profitability and low volatility presents a stable partnership opportunity for clients seeking reliable insurance solutions.

Recent Leadership Expansion The promotion of Gabrielle Griffith to Head of Motor and the hiring of Emma Croucher as Head of US General Liability indicate strategic growth in specialized lines. These developments suggest potential for targeted insurance products in motor and US liability sectors.

Acquisition and Growth The planned acquisition by CRC Group signals a phase of expansion and integration, offering opportunities to collaborate on innovative insurance offerings and leverage combined market reach within the specialty insurance space.

Technology Utilization Atrium employs modern technology tools like SQL, Angular, and Google Tag Manager, which enhances data-driven decision-making. This technological foundation facilitates streamlined risk assessment and client engagement, creating potential for digital insurance solutions.

Financial Stability & Potential With revenues ranging from $50M to $100M and a well-diversified portfolio across property, casualty, and specialty lines, Atrium exhibits financial robustness. This stability makes it an attractive partner for vendors offering innovative insurance technologies or risk management services.

Similar companies to Atrium Underwriters Ltd

Atrium Underwriters Ltd Tech Stack

Atrium Underwriters Ltd uses 8 technology products and services including Open Graph, SQL, Apple iCloud Mail, and more. Explore Atrium Underwriters Ltd's tech stack below.

Open Graph
Content Management System
SQL
Database
Apple iCloud Mail
Email
Angular
Javascript Frameworks
jQuery
Javascript Libraries
HSTS
Security
Google Tag Manager
Tag Management
X-Content-Type-Options
Web & Portal Technology

Media & News

Atrium Underwriters Ltd's Email Address Formats

Atrium Underwriters Ltd uses at least 1 format(s):

Atrium Underwriters Ltd Email Formats	Example	Percentage
First.Last@atrium-uw.com	John.Doe@atrium-uw.com	84%
First.Middle@atrium-uw.com	John.Michael@atrium-uw.com	9%
Last@atrium-uw.com	Doe@atrium-uw.com	6%
First.Middle.Last@atrium-uw.com	John.Michael.Doe@atrium-uw.com	1%

Frequently Asked Questions

Where is Atrium Underwriters Ltd's headquarters located?

Atrium Underwriters Ltd's main headquarters is located at 8 Bishopsgate, Level 20 London, EC2N4BQ, GB. The company has employees across 3 continents, including EuropeNorth AmericaAsia.

What is Atrium Underwriters Ltd's phone number?

You can contact Atrium Underwriters Ltd's main corporate office by phone at

+44-442073****

. 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 Atrium Underwriters Ltd's stock symbol?

Atrium Underwriters Ltd is a publicly traded company; the company's stock symbol is 0MK2.L.

What is Atrium Underwriters Ltd's official website and social media links?

Atrium Underwriters Ltd's official website is atrium-uw.com and has social profiles on LinkedIn.

How much revenue does Atrium Underwriters Ltd generate?

As of October 2025, Atrium Underwriters Ltd's annual revenue is estimated to be $10M.

What is Atrium Underwriters Ltd's SIC code NAICS code?

Atrium Underwriters Ltd's SIC code is 6411 - Insurance Agents, Brokers, and Service NAICS code is 524 - Insurance Carriers and Related Activities.

How many employees does Atrium Underwriters Ltd have currently?

As of October 2025, Atrium Underwriters Ltd has approximately 238 employees across 3 continents, including EuropeNorth AmericaAsia. Key team members include Chief Strategy Officer (cso): H. M.Chief Operating Officer: J. T. F.Chief Risk Officer: S. S.. Explore Atrium Underwriters Ltd's employee directory with LeadIQ.

What industry does Atrium Underwriters Ltd belong to?

Atrium Underwriters Ltd operates in the Insurance industry.

What technology does Atrium Underwriters Ltd use?

Atrium Underwriters Ltd's tech stack includes Open GraphSQLApple iCloud MailAngularjQueryHSTSGoogle Tag ManagerX-Content-Type-Options.

What is Atrium Underwriters Ltd's email format?

Atrium Underwriters Ltd's email format typically follows the pattern of First.Last@atrium-uw.com. Find more Atrium Underwriters Ltd email formats with LeadIQ.

When was Atrium Underwriters Ltd founded?

Atrium Underwriters Ltd was founded in 1932.

Atrium Underwriters Ltd

Q: What is Atrium Underwriters Ltd's official website and social media links?

Atrium Underwriters Ltd's official website is atrium-uw.com. Atrium Underwriters Ltd has social profiles on LinkedIn.

Q: How many employees does Atrium Underwriters Ltd have currently?

Atrium Underwriters Ltd has approximately 238 employees.

Q: What technology does Atrium Underwriters Ltd use?

Atrium Underwriters Ltd's tech stack includes SQL, Duck Creek Platform, Google Tag Manager, Bootstrap, Video.js.

InsuranceUnited Kingdom201-500 Employees

Atrium is a leading (re)insurance group at Lloyd's, the world's specialist insurance market. With a proud history going back to the 1930s, we protect our clients around the world from the risks they face. 
Atrium is ranked as one of the top-performing Lloyd’s Syndicates of the past decade, measured by high profitability and low volatility, achieving substantial growth whilst generating value for the Group.
Syndicate 609, managed by Atrium Underwriters Limited, writes a diversified insurance and reinsurance portfolio across the Property, Casualty, and Specialty business groups.