SIC: 41100
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Guides & resources
Inside SIC 43220: The £23.6bn UK Plumbing, Heating & Air-Con Industry
Key findings from the Construct365 Sector Intelligence Report on SIC 43220: a ~£23.6bn market of ~45,000 firms with almost no concentration, a flat workforce against soaring heat-pump targets, a technology estate with a hole in the middle — and why quoting is the step nobody has built for.
Read guideInside 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.
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