Other specialised construction activities n.e.c.

SIC code 43999 is the UK Standard Industrial Classification (SIC 2007) for "Other specialised construction activities n.e.c.". It is the code a company records at Companies House when this is its business activity, and it sits within SIC section F — Construction.

62,059 companies are currently classified under SIC code 43999 on the UK register, most commonly in London, Glasgow, Manchester.

On Company Shark, search the live Companies House register by SIC code 43999, then narrow by location and incorporation date and export the list with director details. SIC code filtering is available on the Business and MAX plans.

SIC codes are self-reported. Pick the code that most closely matches your main activity — 43999 covers "Other specialised construction activities n.e.c.". You can record up to four SIC codes, and update them on your annual confirmation statement.