Direct Mailing CSV Formats Explained

Direct Mailing CSV Files generates ready-to-upload address lists for popular UK direct mail services. Export your company search results and send physical mail campaigns within minutes.

+8% of base export price

Adds 4 CSV files formatted for Stannp, ClickSend, Intelliprint, and Docmail.

What's included?

When you select this add-on, your export ZIP file includes four additional CSV files, each formatted for a specific direct mail provider:

Each file uses the exact column headers and format required by that service, so you can upload directly without any data transformation.

CSV format details

Stannp format

10 columns: title, firstname, lastname, company, address1, address2, address3, city, postcode, country

Country uses ISO code format (e.g., "GB").

ClickSend format

7 columns: address_name, address_line_1, address_line_2, address_city, address_state, address_postal_code, address_country

Full name is combined into address_name. Country uses ISO code format.

Intelliprint format

7 columns: name, company, address_line_1, address_line_2, town, postcode, country

Country uses full name format (e.g., "United Kingdom").

Docmail format

8 columns: Addressee, Company, Address1, Address2, Address3, Town, Postcode, Country

Note the title-case column headers. Country uses full name format.

How addressees are selected

Each row is addressed to a decision maker at the company. We select the best person using this priority:

  1. Current Director - The longest-serving director still in post (non-corporate preferred)
  2. Current Secretary - If no directors, the company secretary
  3. Other Current Officer - Any other officer currently in post
  4. Fallback - "Business Owner" when no officers are on file

Address source

The address used is always the company's registered office address from Companies House, not the officer's personal address. This ensures mail reaches the business location.

Use cases

B2B prospecting

Search for companies by industry, location, or size, then send introductory letters or brochures directly to decision makers.

Customer outreach

Export your existing customer list and send physical mail for announcements, renewals, or special offers.

Event invitations

Target companies in a specific area or sector with physical invitations to conferences, webinars, or networking events.

Account-based marketing

Combine with DEEP Research to identify high-growth companies, then send personalised direct mail to key accounts.

Getting started with each provider

Stannp

  1. Create an account at stannp.com
  2. Go to "Recipients" and click "Import"
  3. Upload stannp.csv
  4. Create your campaign and select the imported list

ClickSend

  1. Create an account at clicksend.com
  2. Navigate to "Post" > "Address Book"
  3. Click "Import" and upload clicksend.csv
  4. Create a new letter campaign using your imported contacts

Intelliprint

  1. Create an account at intelliprint.co.uk
  2. Start a new mailing project
  3. Upload intelliprint.csv when prompted for addresses
  4. Design your mailpiece and submit

Docmail

  1. Create an account at docmail.co.uk
  2. Create a new mailing
  3. Upload docmail.csv for your address data
  4. Add your document and submit

Data quality notes

Important: Verify addresses before large campaigns

Companies House addresses are self-reported and may be outdated. Some companies use registered agent addresses rather than their actual business location. For large campaigns, consider using address verification services offered by your mail provider.

Missing addresses

Some companies may have incomplete address data. These rows will have empty fields in the CSV, and most mail providers will flag them as undeliverable during upload.

Corporate officers

When a company's only officers are corporate entities (other companies), the addressee name will be the corporate officer's name rather than a person's name.

Companies with no officers

For companies with no current officers on file, the addressee defaults to "Business Owner".

Pricing

Direct Mailing CSV Files adds +8% to your base export price.

Example:

  • Base export (1,000 companies): £10.00
  • Direct Mailing CSV Files (+8%): £0.80
  • Total: £10.80

This includes all four CSV formats in a single add-on.

Paid exports only

Direct Mailing CSV Files is not available with free trial coupons. This ensures the feature is used for legitimate business purposes.

Related guides

Updated Daily
  • New Company Registrations
  • New / Updated Officers
  • Charges / Mortgages
Updated Weekly
  • Officer Disqualifications
  • Accounts (Assets)
  • Insolvency Filings
Updated Monthly
  • Company Officer Resignations
  • Existing Company Changes
  • In Liquidation