Every Companies House record carries a date most people glance past on the way to the numbers that seem to matter more: incorporation date. It sits quietly at the top of the filing history, a formality before the turnover figures and the director list. That is a mistake. Incorporation date is one of the few fields on a company record that cannot be revised, restated, or made to look better next quarter — and read correctly, it tells you almost as much as the balance sheet.
The range is wider than you’d expect
Across the 650 companies Archive Partners tracks, incorporation dates span from Harris & Bailey Limited, registered in Surrey in 1913 — 113 years of continuous trading history — to firms incorporated within the past 18 months. The average age across the tracked population is 23 years; the median is closer to 19, pulled down by a steady stream of newer entrants. Roughly 175 companies in the dataset are more than 30 years old, another 198 sit in the 15–30 year band, 208 are between 5 and 15 years old, and 67 were incorporated in the last five years. That is not a narrow cluster around “established SME” — it is four genuinely different populations wearing the same balance-sheet format.
What longevity actually signals
A company that has survived 30, 50, or 100 years has, by definition, made it through several recessions, at least one major regulatory overhaul, and multiple ownership or leadership transitions it may never disclose in a single filing. Gerald Mcdonald & Company Limited, incorporated in Derbyshire in 1931 and still filing a £36.8m turnover today, has outlasted the gold standard, decimalisation, and three separate Companies Acts. That kind of survivorship is not proof of quality on its own — plenty of tired, undercapitalised firms simply never get struck off — but combined with a healthy filing cadence and a stable officer history, age becomes a genuine resilience signal. It tells you the business model has been tested by conditions no five-year forecast can simulate.
What a young incorporation date should — and shouldn’t — trigger
A company incorporated in the last two years is not automatically a risk. Plenty of the newest entries in our dataset are legitimate, well-capitalised operating vehicles: a group restructuring, a new subsidiary, a genuine start-up with real revenue already on the books. The point of flagging a young incorporation date is not to penalise it, it’s to change what you check next. A 100-year-old firm’s filing history is itself a form of due diligence — decades of confirmation statements and accounts are hard to fake. A company incorporated 14 months ago has no such track record to lean on, so the other signals — officer background, filing completeness, SIC classification, digital footprint — have to carry more of the weight, because there is less history to triangulate against.
Where this breaks down
Incorporation date measures the age of the legal entity, not the age of the underlying business. Group restructurings routinely spin up a brand-new company number to hold assets, IP, or a trading division that has operated under a different name for decades — the new entity’s incorporation date will read as recent even though the business itself is well-established. This is exactly why Archive Partners never scores a single field in isolation: an unusually young incorporation date paired with an unusually large opening turnover figure is itself a signal worth investigating, and often points to exactly this kind of restructuring rather than a genuine start-up.
How to use this in practice
Treat incorporation date as a filter, not a verdict. For supply-chain or vendor screening, segment by age band before you look at anything else — a sub-5-year vendor and a 40-year vendor should clear different bars of supporting evidence, even at identical turnover. Archive Partners exposes ch_incorporation_date on every company profile and via the API, computed daily from the live Companies House register, so the age you see reflects today’s filing position, not a snapshot from whenever the record was last pulled.