E: info@sigdiff.co.ukT: +44 (0)1494 857067

Who ARE who are we?

Our Story


SigDiff was set up by Tony Isaacs in 2007. At the time he was MD at a mid-sized agency. The agency was very successful but Tony was growing frustrated in this role as he really wanted to work on projects rather than manage a company.

Initially Tony worked alone but as the project load grew so did the team. We are currently 4 strong and Tony is happy that he still spends nearly all his time working with clients.


Our Project Leaders


Tony Isaacs

Claire Gregory

Claire and Tony each have 20+ years experience of quantitative research, data modelling and analytics gained both client- and agency-side. Previous employers include Tesco, Mars, Unilever and HSBC.

We have worked together for many years, first at Mars, then at our previous agency and now at SigDiff.

Both Claire and Tony have Maths degrees from top universities and Masters in Operational Research.

If you work with SigDiff, your project will be led by either Claire or Tony. They will be your point of contact and will be personally responsible for all deliverables, although trusted partners may provide support in some areas such as fieldwork.

I've worked with the SigDiff team on a variety of projects over a number of years. Their work is always of a high standard. They have a great sense of integrity in all aspects of methodology, questionnaire design and reporting, and work to deliver fast results without any compromise in quality of fieldwork or analysis.
They present often complex analysis in ways that are easy to understand, and have a track record of delivering action-oriented results that influence the most senior management to often very different points of view from their starting position on a given issue. Their abilities and business impact are clearly evidenced by the longevity of the relationships they build. I would not hesitate to recommend them to anyone looking for fact-based insight to drive their business forwards.

Global Marketing Head (Financial Services)