About us

The Diffley Partnership was established in the summer of 2017. Our aim is simple: to deliver the highest quality research and insights to our clients, giving them the confidence to make important decisions. We work with organisations across the public, private and third sectors delivering research on a range of issues and using all qualitative and quantitative techniques. Based in Edinburgh, we are rooted in the Scottish market but also regularly work across the United Kingdom.  

Client Feedback

“I have worked with Mark on focus group and survey work. His background knowledge and deep insights help us make the most of any research, allowing us to understand not only what people do but why they do it.”
Willie SullivanDirector, Electoral Reform Society Scotland
“Mark is adept at drawing out killer insights from complex data. He combines research and policy expertise with a refreshing ability to communicate in plain English”.
Andrew BairdDirector, the Big Partnership, public relations and digital communications agency
“Great team, great work and great insight. Most importantly a great team to work with. Thank you all.”
Adam LangNesta
“Mark is one of Scotland’s foremost political pollsters and analysts. Through a period of huge political change through referendums and elections, he has kept his finger on the pulse of Scottish voters and provides STV with expert analysis and commentary.”
Bernard PonsonbyPolitical Editor, Scottish Television
“First-class service and have recommended your services to others.”
Public sector client
“I worked with Mark over a period of time. I always found him to be a rigorous analyst who provided penetrating and objective insights.”
The Lord DunlopParliamentary Under-Secretary (Scotland Office) 2015-2017
“Mark’s insights and experience on a range of political issues including Brexit and Scottish independence are incredibly helpful and useful for us as we plan ahead to identify and understand the risks facing the bank.”
Michael CrowHead of UK Regional Public Affairs, RBS
"Excellent service.”
Graeme BealeScottish Government
“Mark has contributed to both Holyrood magazine and Holyrood events. He brings a respected and authoritative voice which compliments Holyrood’s reputation for in-depth policy analysis and non-partisan political intelligence and I would have no hesitation in recommending his work to others. Mark is someone I seek out to discuss the ever shifting political landscape and to gain an inside track on what Scots are really thinking.“
Mandy RhodesManaging Director, Holyrood Communications
”Thank you for always being willing to help and being flexible.”
Client
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