“I first started working with Mark in July 2009, and have just interviewed him for my new book on the UK’s best accounting practices. Mark and his firm ISIS will definitely be featuring in it! What they do is simply incredible. He is determined to leave a real legacy by making a big difference to his clients and community. And I can tell you that he already is doing exactly that!”
Steve Pipe, Founder and Head of Research, AVN

“Mark Hollyman and ISIS Business Solutions have proved excellent for tax services as well as business consulting/accounting purposes. Mark is great to work with, has detailed knowledge of his industry and is easily able to make tax less taxing. I would recommend his services without a second thought.”
Samantha Jones, Client

“Mark worked as our company accountant for many years during which time he provided our business with excellent support and expertise not only in an accounting capacity but also on overall support for a fledgling business. His work was a major factor in our business success. I can confidently recommend Mark as a solid and reliable accountant who is an expert in his field.”
Shirlee Reason, Client

“One expects any specialist provider to know their stuff, Mark adds significant value over and above his specialisation in his detailed understanding of business and practicle, personable approach.”
Simon Toseland, Client

“Mark really does dispel the myth that accountants are stuffy and boring, as one look at his suits will tell you 🙂 He has always provided an excellent service and really strives to add value beyond what I would normally expect of an accountant. Always helpful and with an ability to have some fun along the way, Mark is also backed up by an excellent team. I have recommended Mark to a number of associates and they have also been more than happy with his service.”
Iain McKenna, Client

“I have been using Mark and the Isis team as my accountants for nearly 8 years. The thing that sets Isis apart from many other accountants is their ability to think and work outside the box. In a market that is always changing to hit the SME’s in the pocket Mark stays one step ahead. A refferal i gave him last month led to my client being shown a saving over £100k in tax for the year. Thank you Regards Mark Adams SGL Telecom Plus PLC.”
Mark Adams, Client

“Having worked with Mark for a number of years we have always found him to be Reliable and trustworthy. A fantastic sounding board offering constructive advice. I would have no hesitation in recommending him and often do. Mike Mackley Rapid Vehicle Repairs Limited.”
Mick Mackley, Client

“Mark, through his firm, has provided quality service and his team reflect his commitment to excellence.”
Chris Nichols, Client

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