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Architect companies in the Portsmouth area

227 architect companies have a registered office in the Portsmouth area (PO postcodes), and 18 of them were formed in 2025 or 2026. In their latest accounts, the typical one held £9,673 in cash and owed £17,163 at year end.

Companies House register, 1 September 2026, and accounts filed in the last twelve months. Compared with the official category “Architectural activities” (SIC 71111). Covers companies with a registered office in PO postcodes, including Portsmouth, Chichester, Isle Of Wight.

The numbers

Architect companies in the Portsmouth area (PO postcodes) compared with the same category across the UK. Typical figures are medians.
MeasurePortsmouthUK
Registered companies22718,189
Formed in 2025 or 202618 (7.9%)11%
Being struck off or in liquidation13 (5.7%)5.5%
Typical cash at year end£9,67392 accounts£19,639
Typical amount owed at year end£17,163173 accounts£19,135
Typical number of employees1167 accounts1

What this means if you’re starting one

You will be up against established operators

7.9% of the 227 architect companies in the Portsmouth area (PO postcodes) were formed in 2025–26, against 19% of all companies in the Portsmouth area (PO postcodes). Nationally, that share of new companies is lower than 82% of UK industries.

Few new companies are entering, so your customers will compare you with businesses that have years of reviews and regulars.

You can start without much equipment

The typical architect company in the Portsmouth area (PO postcodes) carries £2,607 of equipment and other fixed assets after depreciation, lower than 88% of UK industries.

Most of the cost of entry is time and running costs rather than kit, so a small test is cheap.

Most of these businesses are run by one or two people

The typical architect company in the Portsmouth area (PO postcodes) reports 1 employee; the top quarter has 2 or more (167 filings).

You are mostly up against owner-operators. Your own hours are likely to be your biggest cost, and the easiest one to undercount.

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What these figures can’t tell you

Companies are counted where their registered office is, which may be an accountant or a home address rather than a shop. Sole traders and partnerships are not on the register, and electronically filed accounts cover roughly 60–75% of accounts filed each year. The figures describe companies that exist; they cannot prove demand for your idea or predict whether it will work. How the figures are built.

Architect in other places

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