The Datum Report

Standing view · business · Portsmouth

The business base in Portsmouth has been shrinking.

deteriorating, held with established confidence, formed on 5 October 2026 from movements in 2026-06.

The business base in Portsmouth has been shrinking, on a divided set of readings. Business deaths were 185 in the quarter to March 2026 and 200 in the quarter to June 2026, both recorded as unfavourable against the usual pattern for their quarter. Running the other way, business deaths were 185 in the quarter to June 2025 and business births 200 in the quarter to September 2025 and 215 in the quarter to March 2026, all favourable. There were 5 businesses employing 500 to 999 people in 2025. The two most recent closure quarters are what tip the view.

How this was decided

A view is formed only where the evidence names a figure you can check. Each movement listed as a reason had to be large enough to matter and distinctive in at least one way — unusual against this area's own history, unusual against comparable areas, or sustained over several periods. A movement shared with peers counts for less, because it says something about the country rather than about Portsmouth. Where no figure supports a direction we hold no view rather than a hedged one.

The 5 measures that formed this view

MeasurePeriodDirection
Business deaths2025-06improving
Business births2025-09improving
Business births2026-03improving
Business deaths2026-03deteriorating
Business deaths2026-06deteriorating

Also published on this topic, but not counted

These figures carry no defensible direction of their own: a rising house price is good news to an owner and bad news to someone trying to buy, so we do not score one as an improvement. They are shown because they are part of the picture, and they did not decide the view above.

MeasurePeriodSeries
Businesses employing 500 to 999 people2025 rising