Bringing elemental transformation to the global Coverholder marketplace

Find out more about us


Bringing elemental transformation to the global Coverholder marketplace

Learn more about us

Carbon Underwriting, a new approach for the market

Carbon Underwriting Limited (Carbon) is a specialist, independent, class agnostic Managing General Underwriter (MGU) writing to a mix of third party capacity and its own Syndicate CBN 4747.

Carbon set out in 2018 with a mission to transform the world of delegated underwriting and with a vision to set a global benchmark. We are a dynamic company and recognise the importance of embracing modern technology to deeply enrich our offering. We have pioneered a game-changing, bespoke approach using an open underwriting model where data drives improved underwriting performance creating superior analysis and fluidity of portfolio management. This is administered through our in-house technology ecosystem, Graphene.

Latest insights

Carbon Syndicate 4747

Carbon Syndicate 4747 at Lloyd’s began underwriting on 1st July, 2020, and provides Carbon with its core capacity. This is supplemented by long-term relationships forged with other Lloyd’s, global Insurance and reinsurance markets and gives us the ability to structure capacity solutions for clients across a wide range of risks and domiciles.


Graphene is Carbon’s technology ecosystem presenting both qualitative and quantitative data in a manner that encourages superior analysis and management of coverholders and their underlying portfolios. The cutting edge platform is fully scalable and facilitates sharing of underwriting conclusions through its portal with the coverholder, full distribution chain and uniquely Carbon’s follow markets. This transparency removes the need to reanalyse data, lowering human resource requirements which in turn leads to a reduction in market-wide expense.



As the Carbon team grows and has matured, we are updating our website and branding to reflect our commitment to our core principles of:

  • Equality
  • Fairness
  • Environmental responsibility

Our new branding recognises these values and will reflect them more fully as we complete the rollout of the full functionality so, please watch this space for further updates and news!


Registered office address:

5th Floor, 20 Gracechurch Street, London, EC3V 0BG

Carbon Underwriting supports Trees for Cities.


Carbon Underwriting is a trading name of Carbon Underwriting Limited which is an appointed representative of Davies MGA Services Ltd, a company authorised and regulated by the Financial Conduct Authority under firm reference number 597301 to carry on insurance distribution activities. Carbon Underwriting Limited is registered in England and Wales company number 11193856. Registered office at 5th Floor, 20 Gracechurch Street, London, EC3V 0BG

© Copyright 2021 Carbon Underwriting