UNION SERVICE LTD
Civil engineering
SIC: 42110, 42990, 46900, 71129
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Guides & resources
AI for Building Services (M&E) Engineers: A Free CPD Course
A free, self-paced course for building-services and M&E engineers on using AI across loads and calculations, coordination, energy modelling, specification and documentation — with the rigour that safety-critical systems demand.
Read guideThe Top 100 Construction Apps (2026 League Table)
A cross-category league table of 100 of the most widely used construction apps — project management, estimating, safety, time tracking, scheduling, field service, roofing, reality capture, BIM and more — grouped by specialty with indicative review standing and links to verify. Ratings indicative as of June 2026.
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.
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