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Companies House · Chelmsford

UK companies in Chelmsford

Chelmsford is the county city of Essex, with a commuter economy and a strong base of construction, trades and professional services. 12,479 active companies have their registered office here, and 1,568 new ones were set up in the last twelve months.

At a glance

Key facts

  • 12,479 active companies are registered to a Chelmsford post town on the Companies House snapshot of August 2026.
  • 1,568 new companies started here in the last twelve months, about 131 a month, and 111 in August 2026.
  • The most common code is Other letting and operating of own or leased real estate (SIC 68209), with 752 companies.
  • The busiest postcode districts are CM1, CM2, CM3, CM9.
Measured

New companies in Chelmsford

1,568 new companies were set up with a Chelmsford registered office in the last twelve full months, about 131 a month. 111 of them were set up in August 2026. That sits on top of 12,479 active companies already registered here.

Sept 25: 145Oct 25: 155Nov 25: 108Dec 25: 95Jan 26: 138Feb 26: 118Mar 26: 166Apr 26: 137May 26: 117Jun 26: 141Jul 26: 137Aug 26: 111
Sept 25 to Aug 26. Companies still on the register, counted from the Companies House snapshot.

What the new ones do: Other management consultancy activities (not financial) leads, with 84 new companies in the year.

  1. 70229Other management consultancy activities (not financial)84
  2. 68100Buying and selling of own real estate66
  3. 64209Activities of other holding companies n.e.c.66
  4. 68209Other letting and operating of own or leased real estate64
  5. 47910Retail sale via mail order houses or via the internet61
For agencies and suppliers

Selling to new Chelmsford 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 Chelmsford 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 Chelmsford companies as leads
Measured

The most registered SIC codes in Chelmsford

Counting active companies whose registered office is a Chelmsford post town, these are the codes that come up most often on the August 2026 Companies House snapshot. Other letting and operating of own or leased real estate leads with 752 companies. It is worth reading against the sectors below: the authored view is what Chelmsford is known for, this is what its companies actually filed.

  1. 68209Other letting and operating of own or leased real estate752
  2. 68100Buying and selling of own real estate629
  3. 70229Other management consultancy activities (not financial)593
  4. 62020IT consultancy activities386
  5. 82990Other business support service activities n.e.c.365
  6. 64209Activities of other holding companies n.e.c.340
  7. 41100Development of building projects333
  8. 96090Other service activities n.e.c.284

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.

Where the volume sits

Dominant sectors in Chelmsford

SIC 68209, Other letting and operating of own or leased real estateView SIC 68209→
752 active companies in Chelmsford
SIC 68100, Buying and selling of own real estateView SIC 68100→
629 active companies in Chelmsford
SIC 70229, Other management consultancy activities (not financial)View SIC 70229→
593 active companies in Chelmsford
SIC 62020, IT consultancy activitiesView SIC 62020→
386 active companies in Chelmsford
SIC 82990, Other business support service activities n.e.c.View SIC 82990→
365 active companies in Chelmsford
Search recipe

Postcode filter

To target Chelmsford on Leadistry, set the postcode prefix filter to:

CM1, CM2, CM3, CM9, CM4, CM0

The 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.

Answers

About Chelmsford on Companies House

How many companies are registered in Chelmsford?

12,479 active companies have a registered office in Chelmsford, counted from the Companies House snapshot of August 2026. Dissolved companies are not counted.

How many new businesses start in Chelmsford each month?

1,568 new companies were set up in Chelmsford in the last twelve full months, about 131 a month. 111 were set up in August 2026.

What do new Chelmsford companies do?

The most common code among companies set up in Chelmsford in the last year is Other management consultancy activities (not financial) (SIC 70229), with 84 of them. Next come Buying and selling of own real estate and Activities of other holding companies n.e.c..

How do I reach new Chelmsford companies before anyone else?

Set a Leadistry agent to the Chelmsford postcode districts (CM1, CM2, CM3) 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.

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Companies House · Chelmsford

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