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Clean data. Accurate bills. Happy customers.
Postcoder helps utility providers capture verified customer data at every touchpoint. Reduce billing errors, cut contact centre volume and improve the end-to-end customer experience.
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Inaccurate customer data is driving billing errors and revenue leakage
Utilities and telecoms businesses manage large volumes of customer accounts, complex billing cycles and high customer contact rates. When the contact data underpinning those accounts is inaccurate – wrong addresses, invalid emails, unverified mobile numbers – the downstream effects are significant.
Every incorrect address in your customer database is a potential billing error, failed correspondence, or an engineer sent to the wrong property. Fixing these errors reactively is far more expensive than preventing them at the point of capture.
1 in 5energy customers are dissatisfied with the accuracy of their bills and inaccurate customer data is a preventable root cause.Ofgem Customer Satisfaction Survey
What Postcoder does for utilities and telecoms
What is Postcoder?
Postcoder is a multi-feature API you can integrate into your website or app quickly and easily using pre-built integrations, sample code and API reference, all within clear and well-structured docs. You can be up and running in minutes with a free trial, and Postcoder's support specialists are always on hand if you need help.
The ultimate utilities and telecoms toolkit
The data verification tools to support accurate billing, reliable communications and a better customer experience:
Address lookup
Verified address capture at sign-up for UK, Ireland and 240+ other countries.
Bank validation
Real-time sort code and account number validation to reduce failed direct debits and collections workload.
Email validation
Confirm customer email addresses are real and deliverable before sending bills, alerts, or contract documents.
Mobile validation
Verify mobile numbers are genuine and live for accurate contact records and reliable SMS communications.
OTP verification
SMS-based one-time passwords for secure account management and sensitive customer-facing transactions.
What our customers say
"Postcoder is a single API that provides all the features we need… Rather than integrate several APIs, we only had to integrate one."
Carl Horn Head of Digital Servicing & Customer Transformation / Capquest
"We sometimes see up to 30,000 postcode lookups in a single day. Automated alerts when the credit balance needs topping up, excellent customer service – had an issue recently regarding the auto top-up and was resolved immediately without any fuss."
Verified User Utilities Industry / G2 review
"Allies provides detailed documentation for their products, which makes them easy to implement. We have had consistent uptime whenever we have deployed a product tapping into their API, and they are used daily as part of our core business processes."
Alan B. Head of IT Development / G2 review
Award-winning API with top performance, easy admin and great support
Businesses rate Postcoder 4.7 stars out of 5 on the world's most trusted software marketplace.
