“Claire was a huge asset to our team on public affairs and we learned so much from her. Working with Claire helped us expand our reach to parliamentarians and to refine our key policy proposals. We have benefited a lot from working with her. Thank you Claire!”

"Claire's advice and support on how best to develop and propel parliamentary/advocacy campaigns has been very, very helpful. I couldn't rate Claire's work more highly."

"Having worked with Claire for the last 18 months or so, and recently attended one of her training courses, I can highly recommend her as an influential policy consultant. She is adept at thinking and operating strategically, but manages to consider every detail and nuance; she offers balanced advice, ideas and guidance, gives consistent support, and is so incredibly knowledgeable and connected. Claire is a real asset to us, and its a pleasure to have her working with us. We trust her wisdom, guidance and expertise and she has really helped make our policy, government relations and public affairs activity more impactful and successful. We look forward to continuing our relationship with Impact Policy and working with Claire in the future."

"Claire has really helped Transform Justice think through how we might better engage with parliament, particularly the Lords. She has suggested new ways of getting an issue on the political agenda and of getting traction."

Claire has made a major contribution to the Society of Occupational Medicine's policy success. She has always met our expectations - from drafting letters to Ministers, attending Ministerial and MP meetings or placing parliamentary questions. She also offers advocacy tactical advice, consulting with our Board on our policy theory of change. A recent key note speech by a Secretary of State is testament to results she has helped achieve.

“Extremely helpful in practical terms with useful tips and leads to follow, but more importantly you helped to give clarity over the direction our campaign needs to go in order to represent the wishes of our group. It was also very good to hear some independent feedback on how we are doing and you helped me to step back and look more objectively.”

"I meet plenty of people who are strategic thinkers. I meet plenty of people who have an eye for detail and a commitment to the hard yards to finish a task. I meet plenty of who are relationally brilliant and make you want to be in the room with them. I meet very few people who are all three. Claire Mathys is one of them."

“Claire Mathys has been on the inside on all sides!  An advisor to a party in government, an advisor to that party in opposition and then working at the heart of the civil service in Whitehall. Claire is wise, insightful, a joy to work with and a person of real integrity.  She brings clarity and knowledge to situations and ensures that those she advises make the best decisions and the biggest impact.”

"Working with Claire is a delight, her political antennae are second to none, her policy knowledge deeply impressive and feedback always adds value. Now her stint in her Whitehall means that her understanding of how the machine works and how to get stuff done makes her a "go to" person. The policy changes I achieved on lettings fees were largely down to her brilliant initiatives and persistence, I couldn't have done it without her."

“I worked with Claire when she led on leasehold reform in MHCLG. She impressed me with her insight into complex strategic problems and the ability to see connections across different issues. She is very strong on communication and on maintaining meaningful dialogue.”

“As Liberal Democrat Energy and Climate Change spokesperson in the Lords – Claire was my special adviser. At that time, there was no chance whatsoever of us being zero carbon by 2050. I needed to exert pressure on the government. Claire put together an advisory team of experts and the guidance that enabled me to produce the top-level powerful report: ‘A Vision for Britain: Clean Green and Carbon Free’. So much so that ministers at the Despatch Box named the report and it was undoubtedly a driver of the change in pace we now see.”