All 46 plumbing companies registered in Northampton, Sep 2025 to Aug 2026.
Every plumbing company that registered a Northampton address between September 2025 and August 2026, newest first, straight from the Companies House register. Every company number links to its own record there.
Company names, numbers and incorporation dates come from the Companies House register and are free to reuse under the Open Government Licence. What the register does not carry is a way to contact any of them. That is the part we sell, below.
June was the busiest month.
Monthly registrations of plumbing companies in Northampton. The busiest month was June on 7. The quietest was December on 1.
New plumbing companies in Northampton, by month
Sep 2025 – Aug 2026 · 46 in total
Small numbers move about. At this volume a quiet month and a busy month in the same year is normal, so read the twelve-month total before you read any single month.
How far back it goes.
Plumbing companies registered to a Northampton address by year of incorporation, and this year measured against the same run of months last year.
New plumbing companies in Northampton, by year
2017 to 2026 · 2026 counts January to August only
Older years undercount. The register only holds companies that still exist. Anything formed in an earlier year and since dissolved has dropped off it, so the further back the chart goes the more it undercounts. That alone makes every trade look like it is growing. Some of the rise here is real growth and some of it is simply that recent companies have had less time to close. The long view works through it in full.
How Northampton compares.
New plumbing companies over the last twelve months in the towns closest to Northampton on volume. Northampton is number 14 of the 33 towns with enough plumbing registrations for a page.
What else started in Northampton.
New companies registered to a Northampton address over the last twelve months, by trade. The colour on each card is the trade family. The Northampton page carries all 39 of them.
- Building and trades
- Digital and professional
- Retail and food
- Transport and logistics
- People and care
- Property
Every trade in Northampton, on one page · The whole building and trades family
20 plumbing_hvac companies from August 2026 you can actually contact. £15.
511 plumbing_hvac companies registered across the UK in Aug 2026. 20 of them have an email address we checked as deliverable and tied to that company: name, number, registered address, directors, website and the contact. The rest are left out, not padded in, and you are not charged for them.
National per trade, Northampton and everywhere else; filter by town in the file. Closed months only, so the count you see is the count you get. £0.30 a record, £15 minimum.
Exact record count, the price and a sample row by email. Asking is not ordering.
Not ready to buy? The names alone, without contacts, are on the public register and we give them away: every new plumbing_hvac company in the UK in the last 30 days (534 to 25 September 2026), as a CSV. Get the free file.