What this report covers
This is the 2026 financial-stability snapshot for Construction of commercial buildings
(SIC 41201 · “Construction of commercial buildings”). Every figure on this page is
derived live from the UK iXBRL filing population — there are roughly
258 active companies in this SIC, and we re-aggregate
the medians, peer-set distributions and stability flags every business
day at 04:00 GMT.
How the headline numbers are computed
- Average profit margin — operating profit / turnover, averaged across
the SIC peer set with the top and bottom 1% trimmed to suppress outliers.
- Median staff cost — staff costs / average headcount, taken at the
filing-level then ranked to the median of the active population.
- Median turnover — the ranked median of the latest-filing turnover
for every active entity in this SIC. Holdco vehicles and dormant
companies are excluded.
- Risk grade — an aggregate of the 41 stability checks we run on
every filing in the SIC. A is “stable population, no concentration
risks”. F is “broad distress signals, multiple concentration risks”.
Where this differs from Companies House aggregates
Companies House publishes filings — not statistics. The bureaus that do
publish statistics re-license curated extracts on a quarterly cycle, and
typically throw away the underlying iXBRL tags. We keep the tags and
recompute the population every business day. The numbers above will
shift week-on-week as new filings land and old ones drop out of the
trailing-twelve-month window.