699 active companies are registered in Dumbarton with Companies House. Out of 803 companies ever registered here, 0 are no longer active — a 87% survival rate. The area has seen significant recent growth, with 55.4% of active businesses incorporated since 2020. Over half (62%) of active companies were formed since 2020, making this one of the UK's fastest-growing business locations. The most common industry sector is non-trading company, with 39 companies. Dumbarton is home to 14 FCA-regulated firms. Companies here hold 13 government contracts worth £14.0M in total. The average company age is 11.3 years. The earliest company registration in Dumbarton dates back to 1895.
Source: Companies House register via UVAGATRON, April 2026
Dumbarton is a growth hotspot — over half of its active companies were formed since 2020.
The average active company in Dumbarton is 11.3 years old. There are 14 <Link href="/glossary/fca-financial-conduct-authority">FCA-regulated firms</Link> in the area. 3 registered charities operate locally.
Companies in Dumbarton have been awarded 13 government contracts with a combined value of £14.0M. See the Top Government Contractors report.
There are 699 active companies registered in Dumbarton, out of 803 total. 0 (0%) are no longer active.
The top industries in Dumbarton include Non-trading company (39 companies), Buying and selling of own real estate (31 companies), Other letting and operating of own or leased real estate (30 companies).
55.4% of currently active companies in Dumbarton were incorporated since 2020, indicating strong recent growth.
Our database contains 4,022 data signals across 11 categories for active companies in Dumbarton. The largest category is Governance with 2,149 signals from 3 sources.
The oldest company registration in Dumbarton dates back to 1895, spanning over 131 years of business history.