New companies in Ruislip, Northwood and Pinner
135 companies were formed at their own address in Ruislip, Northwood and Pinner in the four weeks to 13 September, about 60 of which are expected to trade; another 109 were registered at mass-formation or virtual-office addresses. Of the companies formed in the constituency in 2022–23, 62% were still on the register three years later (84th of 649 constituencies).
Updated 17 September 2026 · covers the four weeks to Sunday 13 September 2026 · next update Monday · JSON · all constituencies, CSV
MP: David Simmonds (Conservative) · London · England · Council areas: Hillingdon (80%), Harrow (20%) · all constituencies
Another 109 companies were registered in Ruislip, Northwood and Pinner over the same four weeks at mass-formation or virtual-office addresses (45% of the 244 in total). They are left out of the headline because they say more about the formation agent than about the constituency; the dashed line on the chart shows them. How these addresses are identified.
What they do
Primary SIC code of the companies formed at their own address in Ruislip, Northwood and Pinner in the last four weeks.
What happens to them
Of the 3,027 companies formed in Ruislip, Northwood and Pinner between January 2022 and September 2023 at their own address, 62% were still on the register three years later and 43% had filed trading accounts — 84th of 649 constituencies (UK: 51% and 35%; London: 49% and 32%). A further 3,305 were registered at mass-formation or virtual-office addresses (52% of the total) and are left out, because their outcomes say more about the agent than the place. Most of the rest never traded: they missed their first confirmation statement and were struck off at about seventeen months. The rank is a description, not a verdict — survival tracks the local sector mix and deprivation more than anything a constituency does, and a few points either way is within the noise for a seat of this size. Every council and constituency compared · how this is measured · CSV.
How this is counted
Every company incorporated in the UK is taken from the Companies House public register the day after it appears, and placed in a constituency by its registered-office postcode using the ONS Postcode Directory (July 2024 boundaries). "Formed at their own address" excludes registrations at addresses that take 100 or more a year — formation agents and virtual offices — because those say where the agent is, not where the business is. "Expected to trade" is the historical trading rate of similar companies from the outcome cohort, summed; it is an estimate for the area, not a judgement on any company. A constituency sees a few dozen formations a week, so the four-week figure is the one to quote and a single week should not be. The official ONS business demography for the area arrives about fifteen months after the fact and stops at local-authority level; this is the same register, counted weekly. Method and accuracy · how survival is measured.
Put Ruislip, Northwood and Pinner's numbers on your own website
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