Tel: 01634 727766     Email:


Meet the team

David Bramley Harker, Partner.

David joined the GSI Group in 1992 as a Commercial Account Executive having served 5 years as an underwriter with Royal Insurance. He became a Partner in GSI Commercial Services in 1995 and has seen the business expand three-fold but still has ambitious plans for the future. David’s main areas of expertise include Fleets, Hauliers, Liability, Motor Trade and Property insurance. David is a Chartered Insurance Broker, professionally qualified to ACII status. Away from the office David is a keen cyclist and enjoys a game of cricket.

Terry Charlesworth, Partner.

Terry joined the GSI Group in 1993 as a Commercial Account Executive and, together with David, became a Partner in GSI Commercial Services in 1995. Prior to that, Terry spent 10 years with a number of national Brokerages. Terry’s main areas of expertise include Contractors, Manufacturers, Distribution and Motor Fleet. An avid Chelsea fan.

Mike Sands, Account Director.

Mike joined the Group in 2007 having spent more than 30 years in the industry, specialising in manufacturing and contractors risks. His experience was gained through both National and Provincial brokers, servicing clients from larger corporate businesses to smaller local firms. He takes pride in delivering a personal service, with attention to detail and comprehensive solutions.

Peter Lewis, Commercial Account Executive.

Peter joined GSI Commercial Services in 2002 as a Commercial Account Executive, having previously worked for a number of local Brokerages. He specialises in all aspects of insurance for small businesses and tradesmen. Pete is a life-long Manchester United fan.

Maria Hatfield, Office Manager.

Our longest-serving member of staff, with more than 30 years of service across the Group. Her main responsibilities include the smooth running of the Office and providing valuable administrative support to Terry. Our resident expert on motor, household and travel insurance.

Polly Escrader, Commercial Account & Claims Executive.

Polly has been with GSI since 2010 and heads up our Claims Department. Before GSI she worked for a smaller broker on the South Coast dealing with all aspects of Commercial Insurance. With a young daughter and a growing collection of pets, outside of work Polly enjoys walking her dogs in the local countryside.

Pauline King, Commercial Account Handler.

Pauline joined in April 2005 from Swinton and her current role involves providing essential office support to our off-site Equine Insurance Specialist. Pauline is joint founder of the Christmas club and co-ordinator for our charity donations to a local food bank. Away from the office Pauline and her family enjoy movies and science fiction, in particular Doctor Who and related memorabilia. She also bakes excellent novelty cakes.

Marion Muir, Receptionist and Admin Assistant.

Our second-longest-serving employee, Marion joined in February 2000. Easily identifiable as the “Voice of GSI” Marion can recognise most of our clients from the telephone alone. Outside of work, her love of dancing has led her to explore various disciplines over the years, most recently Ceroc and Ballroom.

Brett Dennis, HR & Compliance Officer.

Brett joined the GSI Group in 2004 after 15 years in retail banking and 3 years as a Compliance Consultant for an IFA Network. It is Brett’s job to ensure that the business meets its employment and regulatory obligations. When not wading through technical publications, Brett can frequently be found up a mountain or standing in a puddle whistle-in-hand.

Mary Booker, Accounts Assistant.

Mary joined the GSI Group in 1988, originally at their Gravesend office and now based in Rochester. She is responsible for all financial matters from settling Insurer accounts to paying bills and invoices. When not at work, Mary is a Brownie leader and has been a long-suffering supporter of Ebbsfleet United since 1972.

Helen Harrison, Accounts Assistant.

Helen Joined the GSI Group in January 2020. Helen has worked previously finance/banking institutions including Towergate Insurance, S K Underwriting Ltd and Barclays Bank. Helen is an avid West ham fan and in her spare time you can find her crocheting various items for family, friends and charity or walking the family dog.


GSI Commercial Services
Contact us

GSI Commercial Services LLP
63, Riverside 3, Sir Thomas Longley Road
Medway City Estate, Strood, Kent, ME2 4BH
Tel: 01634 727766
Fax: 01634 726647

Interested in Insurance?
Get in touch

    Resource Centre articles


    COVID-19 update

    Clients Experiencing Financial Difficulties On the 18th May 2020, the Financial Conduct Authority introduced new measures for insurance and premium finance firms to help clients in financial difficulty.  Should you be experiencing financial hardship, or if things change at work or home, we may be able to help by: Re-assessing

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    COVID-19 update

    Due to the recent government update on COVID-19, GSI have taken further precautions. The majority of our staff will be working from home and will be contactable through email and their direct dial numbers below. Other staff members will still be in the office on alternate days and will be

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    GSI Direct Dial numbers

    In the event of disruption over coming weeks we felt it might be useful for client to have key staff direct dial numbers. These will be diverted to mobiles to maintain continuity of service.   David Bramley-Harker – 01634 791 955 Terry Charlesworth – 01634 791 954 Mike Sands –

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    GSI Commercial Services llp are authorised and regulated by the Financial Conduct Authority. This information can be verified by visiting GSI Commercial Services llp is a limited liability partnership registered in England under registration number OC306379; registered address 63, Riverside 3, Sir Thomas Longley Road, Medway City Estate, Strood, Rochester, Kent ME2 4BH