International Track 200

Thermoseal makes and supplies more than 2,500 components for insulated glass at four UK sites and exports them to 48 countries, with overseas sales hitting £3 million in 2019. Throughout 2020, it increased its stockholding and expanded capacity at its two-acre Wigan site in anticipation of Brexit. It is led by managing director Gwain Paterson, 58, whose father founded the business in a small Birmingham factory in 1979.

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Company details
Year2021
Rank96
CompanyThermoseal Group
ActivityInsulated glass parts supplier
LocationBirmingham
2-yr av intl sales growth pa40.95%
International sales £000s3,032
Total sales £000s25,907
Staff155
Founded1979
Websitewww.thermosealgroup.com

If applicable:

* Supplied by company † Annualised figure