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  • What is PostCoder?
  • Who are we?
  • Our service to you
  • Our Environment
  • Add address lookup to your applications
The PostCoder software range can help businesses save time and money. Nobody likes to hang on the phone while their address is read back two or three times, or use a website where you have to sit and type your address into three different pages. That's why PostCoder products allow you to check and collect an address from just a Postcode. It also allows address lookup within your website order pages.

As our software contains Royal Mail's PAF® data, it means that you can have access to all 28 million UK addresses on your website, integrated into your software, in a standalone desktop format or to clean an existing address database.
We are a friendly, knowledgeable group of people who like nothing more than to make sure our customers get the best possible solutions for their business and receive the best possible service from us. The company was established in 1986 and has been developing address management software for the UK ever since. We also develop Royal Mail's own UK Addresses software. The Story of Allies Computing
Looking after our customers and staff are our top priorities. See what effect this has had on our customers and how we try to exceed expectations. We also welcome feedback on any aspect of our business so that we can improve what we do and the services we provide you with. If you have any suggestions please let us know.
We care about the environment as much as we care about our customers, which is why we have such a complete environmental care policy. We also put our values of integrity, openness, friendliness, respect, fairness, care and concern at the heart of our business and make sure we follow these when dealing with our customers, suppliers and our environment.

If you are a software developer looking to enhance your products or an organisation needing to reduce data input time, consider PostCoder API Professional to integrate seamless address lookup into your software. Register for a free trial and see how it could benefit you.


  • Website Solutions
  • Ready to use Desktop Solutions
  • Developer Solutions
  • Large Business Solutions
 PostCoder Pro
Address management software offering the full range of search functions and address verification to premise level. Label printing, keyword searching and send feature included.
 PostCoder Batch
The best way to keep your database postally correct and standardised. Use Batch to clean your addresses regularly, amending incorrect or incomplete listings.
 PostCoder Rapid
Our lowest cost full UK software is fast and easy to use. Find the address from a Postcode plus premise and send the address straight into your application.
 PostCoder Lite
Street level address collection. Bring back a full address from number and Postcode. Add your own name and premise then send to any application or print straight onto Labels.
 PostCoder for Sage Line 50
Use PostCoder within your Sage Line 50 software to complete addresses fast, adding the complete address straight into your Sage database.
 
Not sure which solution is best for you? Try our desktop solutions product matrix
 PostCoder API Professional
Our best-selling API includes the full range of address collection and search capabilities and incorporates usable examples for all standard Windows development languages.
 PostCoder API Compact
Incorporate rapid addressing by Postcode into your own application using this low cost API. You can also search the Compact 11Mb PAF® data file on part-Postcode.
 PostCoder Web SOAP
Add pay as you go address validation to your website with our SOAP service. Bring back premise lists from a search on any part of an address. Use grid references to create your own "find my nearest" service.
 PostCoder Web Nearest
A ready to use "find my nearest" service to add to your website. Whatever your customers are looking for, this service will allow them to find your closest one to their Postcode or town.
 PostCoder Server
API Professional functionality configured for a client server environment and using a TCP/IP connection. Includes both Java and Windows client options.
 PCGrids
PCGRIDS matches OS AddressPoint data with PAF® to add premise level grid references to your postal address files. Requires separate AddressPoint licence.
 Raw PAF® Data
For small datasets, non-Windows environments or mailout purposes, tailored extracts of raw PAF® address data are available in a range of formats.
Not sure which solution is best for you? Try our developer solutions product matrix
 PostCoder Web SOAP
Add pay as you go address validation to your website with our SOAP service. Bring back premise lists from a search on any part of an address. Use grid references to create your own "find my nearest" service.
 PostCoder Web Nearest
A ready to use "find my nearest" service to add to your website. Whatever your customers are looking for, this service will allow them to find your closest one to their Postcode or town.
 PostCoder API Professional
Our best-selling API includes the full range of address collection and search capabilities and incorporates usable examples for all standard Windows development languages.
 PostCoder API Compact
Incorporate rapid addressing by Postcode into your own application using this low cost API. You can also search the Compact 11Mb PAF® data file on part-Postcode.
 Raw PAF® Data
For small datasets, non-Windows environments or mailout purposes, tailored extracts of raw PAF® address data are available in a range of formats.
Not sure which solution is best for you? Try our website solutions product matrix
 PostCoder API Professional
Our best-selling API includes the full range of address collection and search capabilities and incorporates usable examples for all standard Windows development languages.
 PostCoder Server
API Professional functionality configured for a client server environment and using a TCP/IP connection. Includes both Java and Windows client options.
 PostCoder Batch
The best way to keep your database postally correct and standardised. Use Batch to clean your addresses regularly, amending incorrect or incomplete listings.
Not sure which solution is best for you? Try our business solutions product matrix
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