We are an international Executive Search and Selection consultancy based in London. We specialise in recruitment at Board and Senior Executive level in the Not-For-Profit and commercial sectors and are supported by a global network of associate offices.
Headed by Sarah Thewlis, we have a reputation for excellence and a passionate commitment to client and candidate satisfaction that extends beyond everyday boundaries.
Our approach is wholly focused on providing our clients with the best possible service and we tailor everything that we do to satisfy their requirements, be that Search and Selection, Talent Mapping or Leadership Consultancy. We aim to be the bridge between client and assignment, candidate and their future, what the client needs and what the candidate can provide: we link people and skills together.
We value, above anything else, the partnerships we build with both clients and candidates. We understand that the success of our clients is dependent on recruiting the very best talent - the leaders of the future - and we are driven by our commitment to ensure this.
We have experience, expertise, creativity, thoroughness, energy, flexibility and determination, which is why we have an enviable track record of successful appointments. And, quite simply, we enjoy what we do!
Case Studies and Testimonials
As part of Thewlis Graham Associates’ commitment to professionalism and quality assurance, we conduct post-assignment audits. We employ an independent consultant to question both clients and candidates (both successful and unplaced) and give feedback on their experience with Thewlis Graham Associates. The responses to these questions help shape the way we work. We also ask on a scale of one to ten would you recommend Thewlis Graham Associates. It’s good to know that in the last 18 months everyone asked has indicated a score of 8 or above.
It was a very positive experience and I was really happy. Sarah Thewlis was really professional, knew her stuff and gave good feedback. This was the best experience I have ever had with a Recruitment Agency. Some agencies try to 'woo you in' but I felt it was really about getting the best candidate for the client.
Fantastic - couldn’t have been better. It was an extremely good process and I was particularly pleased as I had persisted in getting professional recruiters for the job. We hadn't done this before and I had some opposition initially but now we know we would want this for roles that may become vacant in the future. The process proved its worth and it was felt that this was value for money.
I was impressed that TGA didn't treat me like other recruitment agencies. A very good experience - very constructive, efficient and they got me to move jobs when I hadn't for 10 years - speaks for itself!
Overall, I thought this was excellent, bearing in mind that we had never used an agency before and so this was our first experience - I thought they were excellent.
Very satisfied and very pleased to work with them - so pleased they contacted me! A very positive experience - the recruitment process can sometimes be quite tricky, but TGA were very professional and made it easy.
Utterly professional, super helpful and very thorough - exactly what we needed.
Dealing with Sarah directly was very professional, open and honest, which I appreciated. She knew what IAPCO was looking for, which was very important when speaking with candidates and it was easy for me to have conversations with her as she had the answers - if she didn't know an answer, she got it from the Council.
I’ve applied for two roles through Thewlis Graham and in both cases the experience was extremely positive, not only did I get that real understanding of what I would be getting into but I was given really useful constructive feedback which will help me applying for other roles in the future.
I was really pleased and encouraged by my interactions with Rachel and Sarah. I particularly appreciated their professionalism and also kindness. Even though I wasn't successful at the client interview, Sarah's debrief was very detailed and thoughtful - which allowed me to have useful take away for future interviews. Thanks again!
I was impressed with the personal attention and advice I received, and the professional, straightforward and efficient way in which Thewlis Graham handled my application. It was particularly good that they spent time after I failed to land the role I was applying for telling me where I had fallen short and how to improve my chances next time round.
Giving confidence to all of those participating in the appointment process and building a sense of effective team collaboration, as well as attracting very strong candidates and a significant number of applications for each post.
We used Thewlis Graham to select a new board member/co-treasurer. This was a broad brief as our organisation has an international reputation and is active in many different areas including being a major think-tank. From the start the firm hit the ground running. They took the hard work away from us by helping us define our needs and then working with us to design the competence framework. They put forward an excellent and diverse Longlist allowing us to interview a very strong set of candidates. They stayed with us throughout this process and until the new candidate was in place. We have been greatly impressed with how they have handled every aspect of our assignment.

