Freight air transport (SIC code 51210)
Freight air transport is UK SIC code 51210. It sits in division 51 (Air transport) of the SIC 2007 list. On the August 2026 Companies House register, 2,462 active UK companies list 51210 among their SIC codes. 862 of them list it first. That makes it the most used code in its division.
2,462active UK companies list SIC 51210 among their codes on the public recordCompanies House · counts as of August 2026
SIC 51210 in numbers
2,462 companies is 0.05 per cent of the 5,190,464 active companies on the UK register. 51210 is the most used of the 3 codes we track in division 51.
Only 862 of the 2,462 put it first. The other 1,600, 65 per cent, list it behind another code, so a search on the first code alone would miss most of them. Match any of the four positions and tighten it with a second filter.
ACTIVE COMPANIES BY REGISTERED-OFFICE POST TOWN (WHERE THE PAPERWORK SITS, NOT NECESSARILY THE WORK) · COMPANIES HOUSE PUBLIC RECORD, AUGUST 2026
The five busiest post towns hold 35 per cent of them and London alone 27 per cent. Selling nationally, those towns are most of the market. Selling locally outside them, expect a small pool, so cover a county or a region rather than one town.
A worked example: 51210, registered office in London, incorporated in the last ninety days, from a pool of 2,462. Each lead you get arrives with a working website and a real email, and the director's name when the record has one. If we cannot complete one, you pay nothing.
SIC 51210 companies, as leads
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Air transport is a small division with a clear edge to it. It is for companies that carry passengers or freight by air.
Related SIC codes
How to read SIC 51210
SIC 51210 reads as division 51 (air transport), group 512, class 5121, then the full five digits, inside section H, transportation and storage. A company picks its own codes, up to four, and Companies House does not check them, so 51210 is the company's own description of what it does, and 862 list it first where 2,462 list it anywhere.
Who sells into division 51
Selling here is niche and high value. Aviation insurers and their brokers want these relationships.
About SIC 51210
How many UK companies use SIC code 51210?
2,462 active UK companies list 51210 (Freight air transport) among their registered SIC codes. Each company may register up to four. Of those, 862 put it first. The figures come from the August 2026 Companies House register snapshot, and count active companies only.
Should a drone operator register under 51210?
Usually not. Code 51210 is for transporting freight by air, so it only fits drone firms that actually carry cargo. Aerial photography and filming companies normally register 74202. Drone survey and inspection work sits better under engineering or other professional codes. SIC codes are self-selected and unchecked. Even so, an airline code on a photography drone business will confuse insurers and banks.
Put SIC 51210 to work
Find UK SIC 51210 companies
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