CATI, field and online data collection.

We have been collecting market research data for our clients for close to 40 years, covering all sectors and methodologies to award winning standards. Our survey capability ranges from short and simple online questionnaires up to multi-touchpoint Voice of the Customer programmes. Why use Walnut? Find out here:
How we do it.
Make the call on CATI research
Make the call on CATI research
Interviewing a specific region or demographic? Sometimes a call is all it takes to reach your selected market. CATI research is one of our specialties, with years of experience collecting phone data.
When online isn’t an option
When online isn’t an option
F2F and field interviews are sometimes the only way to reach your audience, especially if there’s products to test or taste. Our field team are experts at finding the right people, in the right place for your needs.
Stress-free data collection
Stress-free data collection
A 75-seat award-winning CATI call centre based in the UK. A field force of over 500 field interviewers and in-house co-ordinators. A 30,000 strong UK online panel. All ran and managed in-house by Walnut, meaning there’s no other agencies. We are the one-stop-shop for stress-free data collection.
ISO accredited
ISO accredited
Walnut Unlimited operates a business management system incorporating its dual accreditation to ISO 20252 (international standard for quality in market research) and ISO 27001 (international standard for information and data security); we are fully GDPR compliant.
Seamlessly mixing methodologies
Seamlessly mixing methodologies
Multi-mode approaches are encouraged at Walnut Unlimited. In order to achieve a deeper level of human understanding, we can seamlessly blend online, telephone and face-to-face research, depending on your needs.
Continuing the success in 2019
Continuing the success in 2019
Once again, the Walnut Unlimited team are finalists for Best Data Collection (face-to-face), Best Data Solution and Best Training & Development at the 2019 MRS Operations Awards.
Give us your challenge.