Who do we advise?
Businesses in the following sectors:​
​​
-
Technology & Start Ups (all industries including FinTech)
-
E-Commerce Platforms & Marketplaces
-
Retail​
-
Wholesale
-
Manufacturing
-
Car Parking & Enforcement
-
Hospitality (Hotels, Bars and Restaurants)
-
Financial & Professional Services
-
Property Owners - Let & Unoccupied
-
Construction
-
Motor Trade
-
Transport
-
Charity
-
Education
​
Mid & High Net Worth Individuals with:​
​
-
Unique Homes
-
Fine Art​
-
Antiques
-
Jewellery
-
Classic and High-Value Cars
-
Worldwide Travel
-
Yachts
-
Secondary Residences
-
Property Portfolios
-
Private Healthcare
Founder's Story
Alexander Margolin, spent 6 years at Allianz prior to founding Sioma Ltd. During his time at Allianz, Alexander was recognized by the industry and awarded Young Underwriter of the Year at the Insurance Post Underwriting Services Awards in 2015.
​
While working as Senior Property and Liability Underwriter in the City of London at Allianz, one of the largest insurance companies in the world, Alexander completed his Insurance professional exams in 2015 to become an Associate of the Chartered Insurance Institute and holds the title of a Chartered Insurance Broker.
Alexander left the city in 2018 to fulfill a vision of running his own business and utilizing his industry knowledge to provide the best insurance service available to UK businesses and high net worth individuals. In 2019, after a decade in the industry, Alexander was named as one of the top 24 talents under the age of 35 in the UK insurance industry by Insurance Business UK .
Client Reviews
Our industry is a minefield of legislation and contractual obligations which require comprehensive indemnity insurance. There was a real void in the insurance market for the type of coverage we needed.
​
Alexander Margolin of Sioma Insurance was able to broker a policy that met all our commercial and legal requirements at a competitive rate.
​
I cannot recommend Alexander highly enough for his professionalism, business acumen and depth of knowledge.
William Hurley, Chief Executive Officer
Our Team
At Sioma, our clients have access to a team of highly trained advisors, account handlers and claims handlers to ensure we always provide you with an excellent service.
Some of our key team members include:

Alexander Margolin BSc (Hons), ACII
Founder | Chartered Insurance Broker
Alexander is the founder of Sioma and a Chartered Insurance Broker. As the principal consultant at Sioma, Alexander is always looking to best advise and support UK businesses and individuals, utilising his knowledge and expertise gained with a decade of experience in the insurance industry.
​
Alexander was recently named by Insurance Business UK as one of the top 24 talents under the age of 35 in the UK insurance industry.