Division 73 of the UK SIC 2007 list. It holds 3 codes, listed in full below with the number of active UK companies filed under each.
One code dominates here: 73110, the advertising agencies code. UK founders use it for everything, from full-service creative shops to freelance media buyers and social media specialists. Code 73120 covers media representation, which is selling advertising space and time on behalf of the owner. Code 73200 marks market research and polling firms. In practice 73110 overlaps a lot with marketing consultancies registered under 70229. So a list built on 73110 catches firms that call themselves agencies, not the whole marketing sector.
Agencies are among the most sold-to companies on the register. SaaS vendors offer them project management, reporting and creative tools. Freelance platforms and production studios pitch white-label capacity. Recruiters trade in scarce creative and paid media talent. A new incorporation usually means an account director has gone independent with a client or two. Headcount growth or a rebrand suggests new retainers. Agencies also need their own pipeline, so they buy lead data themselves.
Code 73110 suits businesses that create and place advertising. Strategy-led marketing advice fits 70229 in the consultancy division. Companies House checks neither choice. Plenty of firms sit on the line and simply register both. A company can hold up to 4 SIC codes and adjust them whenever it files a confirmation statement (CS01).
Yes. Each company may declare up to 4 SIC codes. An agency that also runs research projects can list 73200 next to 73110. Add or swap codes on the next confirmation statement. There is no fee beyond the statement itself, and no approval step. Holding both codes also helps buyers find you when they search either category.
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