I have worked with Jon for over three years and his ability to deliver exemplary service to the contractors I work with, has helped to forge the close working relationship we have. Jon is a very knowledgeable individual and has helped us at SEC on numerous occasions, even providing support and guidance to our clients on the nuances of contractor compliance. Compliance is an important way in which we distinguish ourselves from our competitors at SEC and we cannot deliver on our success without people like Jon supporting us and always available to give their input. I couldn’t recommend him highly enough.

Duchesse KALA-KALA – Sales Manager – SEC Recruitment

Duchesse KALA-KALA, Sales Manager, SEC Recruitment

I would highly recommend Jon and 6CATSPRO. Given the levels of compliance needed to operate in parts of Europe, we have found their expertise invaluable. The dedication Jon has shown to advise on the best solutions for contractor engagements or consultancy/statement of work models has been excellent.

Glenn Norris – Director – X4 Group

Glenn Norris, Director, X4 Group

ProClinical have maintained a great working relationship with 6CATSPRO, and particularly Jon Clarke, for many years. When it came to selecting a partner to assist us with obtaining our AUG labour leasing licence in Germany, we didn’t think twice on who to reach out to.


Jon’s expert knowledge, continued patience and speedy responses enabled us to successfully gain our AUG license in no time at all. Further to this, Jon carried out engaging and robust training workshops for all of our employees to ensure that our teams remain compliant and confident in using our AUG licence in Germany as we continue to expand our service offering in the DACH region.


Working with Jon is always a pleasure. He really does support businesses with expert end-to-end guidance and we are thrilled to be able to continue our working relationship

Jade Kinsella – Group Head of HR – ProClinical

Jade Kinsella, Group Head of HR, ProClinical

I have worked in the Recruitment Industry for over 15 years, Jon is still the first person I contact and recommend when anyone wants to know about new Territories or solutions. Jon not only is incredibly knowledgeable but he always delivers advice quickly whilst bearing in mind commerciality; and most all he is genuinely a nice guy

Richard Leese, General Counsel (solicitor), Morson

Setting up of a recruitment company isn’t easy, especially one in a different country! Jon and the team have supported us from start to finish and have enabled us to open up a branch of our recruitment company in Dusseldorf.

Jon ensured this process was smooth, quick and seamless. His vast knowledge ensured we were fully compliant and everything was in order for the set-up to take place.

If you have any questions on international expansion or compliance, then I highly recommend Jon and his team!

Holly Langley, Business Operations Manager, Simply Commerce Recruitment

As Finance Director of X4 Group I have found Jon to be a trusted adviser and partner to our company. His insight and commercial advice along with his knowledge of the international contractor scene is proving to be extremely beneficial to our team as we further our reach beyond the UK into Europe and beyond. He is both personable and professional, sees the bigger picture and helps drive forward action and progress in a supportive manner. In an area full of potential risk it is reassuring that we have partnered with a true expert who is so approachable and practical in their advice.

Jonathan Richardson – Finance Director – X4 Group

Jonathan Richardson, Finance Director, X4 Group

I can’t speak highly enough about Jon and 6CATSPRO! The knowledge provided around operating and  maintaining high standards of compliance in Europe has been priceless. The help and support given by Jon  has been superb, with him often coming back to any questions instantly and always with a friendly and approachable attitude . Brilliant company with brilliant service.

Sian Wills – Operations Manager – Revoco Talent

Sian Wills, Operations Manager, Revoco Talent

CCS had a really useful and highly enjoyable day’s tutorial by 6CATSPRO on the subject of placing contractors with Clients in Germany. Post the course Jon kindly gave us some additional help reviewing documents to get our ducks in a row with our German Clients. Jon really knows his stuff and is extremely accessible and quick to respond. Would not hesitate to recommend and will definitely use again.

Theresa Spencer-Brown – Co-Founder at CCS Business

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Jonathan and 6CATSPRO are experts when it comes to explaining how recruitment interacts with rules and regulations on a country-specific level. They have first-hand experience on how to onboard contractors compliantly. As (international) recruitment is getting more and more regulated (e.g. CFA 2017, GDPR, IR35, AUG, ) and as the rules become more and more complex, recruiters and their back-office teams (including myself) need a sounding board to understand how to manoeuvre through the compliance landscape without necessarily saying NO to business. Jon has furthermore done a fantastic job of showing how recruiters can use their knowledge about compliance to demonstrate their expertise to their stakeholders and develop commercially sound MSP/ workforce solutions for their clients. I look forward to having more insightful conversations Jon!

David Korthals – Head of European Compliance – Investigo


David Korthals, Head of European Compliance, Investigo

I highly recommend Jon and the team at 6CATS. Their insights, advice and practical assistance has been of huge value to our European operations

Ben Carter-Fraser – Head of European Recruitment – Barclay Simpson