Directory Solutions
We are BT Wholesale Directory Solutions, delivering BT OSIS, the UK’s trusted regulated directory that powers organisations with accurate, reliable data.
Better data. Better business.
Refine your data, streamline operations, and unlock deeper connections that drive growth.
BT OSIS
The UK’s only fixed line directory database
With over 20 million verified residential and business listings (names, addresses, landline numbers). Exclusive to BT, updated daily, and compliant with regulatory standards.
Why BT Wholesale?
Comprehensive and up to date
Maintained to the highest standards, BT OSIS database is updated daily, ensuring you receive the most current data – new, ceased, and amended entries – every time.
Reliable and secure
We take pride in our commitment to quality, regulatory governance, compliance, and security, making us one of the most reliable partners in the industry.
Trusted partnerships
We work with over 70 UK regulated communications providers, ensuring accuracy, relevance, and trustworthiness of the data we deliver
Versatile applications:
Leverage OSIS extracts to create an innovative directory of products and services. Whether you’re delivering a 118 directory enquiries service, distributing data through bureau services, or providing information through online platforms or printed directories.
Powering trusted connections through data that delivers
Get in touch
Contact us today to explore how we can support your goals and deliver results.
