SIC: 41100, 71129
Get a Free Quote
Need builders work done? Get free quotes from verified UK contractors — no obligation.
Sponsor the Builders category
Put your brand in front of buyers browsing this category — exclusive, one sponsor per category
Guides & resources
Inside SIC 71111: UK Architecture's Record Year That Most Practices Missed
Key findings from the Construct365 Sector Intelligence Report on SIC 71111 — architectural activities: an ~£8.6bn profession where chartered-practice revenue jumped 24% to a record £5bn while firms of 1–4 staff stood still, 78% of practices earn 13% of the money, fee scales are banned by competition law, and the institute's own free calculator settles the product-fit question.
Read guideInside SIC 71122: The UK's Consulting Engineers, From Giants to Sole Practices
Key findings from the Construct365 Sector Intelligence Report on SIC 71122 — engineering-related technical consulting: an £80.5bn group headline over a ~32,800-firm subclass, a barbell of global giants and micro-consultancies, fee bidding the profession itself calls a free-for-all, and the first conditional 'maybe' this series has given a pricing product.
Read guideInside SIC 43120: The £3bn UK Site Preparation & Groundworks Code
Key findings from the Construct365 Sector Intelligence Report on SIC 43120 — site preparation: a ~£3.0bn code of 3,114 firms that shrinks while its revenue grows, a 32× data trap on the obvious search result, margins halving in the filed accounts, a pre-pack that left 180 creditors with five pence in the pound — and the product-fit question that rules our own app out.
Read guide