UK companies in Southend-on-Sea
Southend-on-Sea is a seaside city in Essex, with hospitality, retail, construction and trades businesses. 6,832 active companies have their registered office here, and 787 new ones were set up in the last twelve months.
Key facts
- 6,832 active companies are registered to a Southend-on-Sea post town on the Companies House snapshot of August 2026.
- 787 new companies started here in the last twelve months, about 66 a month, and 65 in August 2026.
- The most common code is Residents property management (SIC 98000), with 488 companies.
- The busiest postcode districts are SS1, SS2, SS3, SS0.
New companies in Southend-on-Sea
787 new companies were set up with a Southend-on-Sea registered office in the last twelve full months, about 66 a month. 65 of them were set up in August 2026. That sits on top of 6,832 active companies already registered here.
What the new ones do: Retail sale via mail order houses or via the internet leads, with 37 new companies in the year.
Selling to new Southend-on-Sea companies
A company in its first months is still choosing who it works with. Reaching it then, with a short email that names what it has just started, is often the easiest time to win them as a client.
- Marketing agenciesA new company needs a website, a logo and its first customers, usually before it has picked anyone to help.
- AccountantsEvery new company owes a first set of accounts and a confirmation statement, and many have no accountant yet.
- IT and software firmsEmail, devices and security get set up in the first months, and the choices made then tend to stick.
- Insurance brokersEmployers' liability, professional indemnity and van cover are bought early, often in a hurry.
- RecruitersThe first hires come quickly once a new company wins work.
Leadistry reads the new Southend-on-Sea registrations every morning, keeps the ones with a working website and a real email, and writes the first email for you to approve. The first 25 leads are free.
Get new Southend-on-Sea companies as leadsThe most registered SIC codes in Southend-on-Sea
Counting active companies whose registered office is a Southend-on-Sea post town, these are the codes that come up most often on the August 2026 Companies House snapshot. Residents property management leads with 488 companies. It is worth reading against the sectors below: the authored view is what Southend-on-Sea is known for, this is what its companies actually filed.
- 98000Residents property management488
- 68100Buying and selling of own real estate395
- 68209Other letting and operating of own or leased real estate339
- 82990Other business support service activities n.e.c.288
- 70229Other management consultancy activities (not financial)217
- 64209Activities of other holding companies n.e.c.153
- 96090Other service activities n.e.c.150
- 41100Development of building projects146
Pick a code, then narrow by postcode and date. Every company you pull carries a working website and a real email, and we never charge for the ones we cannot complete.
Why do these counts add up to more than the total?
A company may register up to four SIC codes and these counts include every position, so a business filed under two of them appears twice.
Dominant sectors in Southend-on-Sea
Postcode filter
To target Southend-on-Sea on Leadistry, set the postcode prefix filter to:
SS1, SS2, SS3, SS0, SS9, SS4The search returns companies with a registered office in any of these postcode areas. Add a SIC code filter from the table above to narrow by sector.
About Southend-on-Sea on Companies House
How many companies are registered in Southend-on-Sea?
6,832 active companies have a registered office in Southend-on-Sea, counted from the Companies House snapshot of August 2026. Dissolved companies are not counted.
How many new businesses start in Southend-on-Sea each month?
787 new companies were set up in Southend-on-Sea in the last twelve full months, about 66 a month. 65 were set up in August 2026.
What do new Southend-on-Sea companies do?
The most common code among companies set up in Southend-on-Sea in the last year is Retail sale via mail order houses or via the internet (SIC 47910), with 37 of them. Next come Other letting and operating of own or leased real estate and Buying and selling of own real estate.
How do I reach new Southend-on-Sea companies before anyone else?
Set a Leadistry agent to the Southend-on-Sea postcode districts (SS1, SS2, SS3) and the trades you sell to. Each morning it finds the new companies that match, checks each one has a working website and a real email, and writes the first email for you to read and approve.
Nearby and related cities: Norwich · Cambridge · Peterborough · Colchester · Chichester · Newry · Sunderland · Canterbury · Every UK city
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