Our team

Terry Doherty founded the company in September 1991, starting in a serviced office with the aim of building a managed services business.

Terry is the Founder and Chief Executive Officer of Doherty Associates. Now in its 27th year, the organisation has multi-country presence, a global client base and a team of more than 80 people working round the clock.

The business initially specialised in providing IT to cruise ships in the 1990s where remote technology support was a novel concept. He then applied these learnings to other industries operating in inaccessible locations, such as mining and oil and gas companies. Under Terry’s leadership, the company’s cloud customer portfolio has quadrupled in the last three years and now spans across most industries and includes purely cloud and hybrid solutions.

Terry is known in the industry for his entrepreneurial nature, as acknowledged in the UK Technology Parliamentary Review published by the UK Government last year. True to his style, he was one of the early adopters to set up a Microsoft Cloud practice, and the company is now in its 15th year as a Microsoft Certified Gold Partner. Terry is a keen photographer and golfer. He lives in Chiswick, London, and has two children.

Doherty Team-Terry Doherty

Doherty Team-Owen Morris

Owen Morris – Operations Director

Owen Morris is the Operations Director at Doherty Associates, responsible for achieving and maintaining the company’s ISO9001 and 270001 certifications and owner of the company’s processes overall.  He is also responsible for the project management discipline and the cloud applications and data team within Doherty Associates with staff based in Cardiff, Leeds and Richmond.   He has a wide range of experience covering consultancy, development, the Microsoft cloud, project management and delivery. With over 15 years’ experience in IT, prior to joining Doherty Associates in 2014, Owen was a transition manager at Logica and Capgemini.  

He holds master’s degrees in chemical engineering and Computer Science. Outside work Owen is a keen runner and when he gets the time, home brewer.

Doherty Team-Caleb Mills

Caleb Mills – Chief Technical Officer

Caleb is the Chief Technical Officer at Doherty Associates. With over 20 years’ experience in the industry, Caleb ensures DA choose and develop the best products and solutions in which to specialise and recommend. Caleb joined DA in 2007 and comes from a background as a field engineer and consultant. He has always had a focus on business outcomes and user adoption, and Caleb has driven adoption of cloud and hybrid solutions at Doherty Associates both internally and throughout the customer base. He continues to work closely with Doherty Associates’ customers to help them leverage the capabilities of new technologies as they emerge.

In his spare time, Caleb enjoys golf, playing guitar, and spending time with his two young children.

Doherty Team-James Mitchell

James Mitchell - Account Director

James is the Account Director at Doherty Associates. Having been with the company from year one, James has overseen a phenomenal transition in the industry and in our business, and is proud to still look after some of the clients who have been with us from the beginning. 

James seeks to understand the inner workings of his customers, focusing on real business issues rather than explaining different parts of technology. He understands that organisations want IT to work and be an enabler for them, and he knows that understanding the goals and processes of our customers is key to making this happen.


Ian Thorne – Service Delivery Director

Ian is the Service Delivery Director at Doherty Associates and is responsible for overseeing the London and Kuala Lumpur-based service desk and 24/7 support and directing operations at Doherty.

Ian brings a wealth of expertise gained at senior level, with over 20 years’ experience in the managed services industry, holding several senior service delivery related roles to public and private sector clients within large organisations.

Most recently he was at Capita where he was responsible for the operational delivery of IT managed services to a large local authority in Greater London.


Lee Gilland - Project Management Office Manager

Lee is the PMO Manager at Doherty Associates, responsible for the overall delivery and governance of client projects.

Formerly the PMO Manager at Moore Stephens LLP. Lee is PRINCE2 qualified and has worked in IT for several years. He also has project management experience in the Finance and Construction industries as well as a Chartered Institute of Bankers qualification in Financial Planning.

Outside of work, Lee is a keen cyclist and football fan, as well as a member of MENSA. He lives in Berkshire with his fiancée and two dogs.

Mandeep updated

Mandeep Deu – Management Accountant

Mandeep Deu is the Management Accountant at Doherty Associates, he is responsible for providing the Doherty’s senior management team with detailed financial reports which facilitates key decisions within the business. He is also responsible for producing all monthly and annual accounts. Mandeep started at Doherty Associates in 2014 as an Assistant Accountant and has since progressed into the company’s Management Accountant, alongside attaining his ACCA qualification (Association of Chartered Certified Accountants). With over 8 years’ experience working within various finance functions, Mandeep has been able to draw upon his acquired skills & knowledge to help the finance department continually adapt to the changing needs of both the business and UK GAAP.

Outside of work Mandeep is a keen footballer and loves to travel the world with his wife. He has explored Maldives, South Africa, Thailand, Singapore and Bali to name a few.

Learn more about our Kuala Lumpur team

han how sim

Han How Sim - Regional Director

Han How is the Service Desk Manager in Kuala Lumpur. Han How works to ensure that our out of hours support offering is meeting and exceeding our customers’ demands.

Han How is also responsible for the technical management and client systems monitoring in our 24/7 Network Operations Centre.

"We have been a customer of Doherty for over 6 years and on the technical side have always received a notably swift and efficient service from the helpdesk and engineers, both as regards business-critical issues and more everyday questions and requests for assistance. In addition, our account manager has proved invaluable with advice and assistance on our infrastructure and planning and has helped us to introduce several improvements to our system and network over the years."

Jamie - Financial Services

Why Doherty?

Microsoft specialist

Doherty became a Microsoft Partner in 1999. From the beginning, it was a perfect match: our commitment to client service and their game-changing technology.

We became a Microsoft Gold Partner in 2004.

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Seven years ago, we took a bold leap and began our journey towards the cloud with Microsoft.

Why? Because we knew it would become a secure, innovative and powerful business enabler.

Today, like Microsoft, we embrace the cloud and we’re using that to help businesses boost productivity, empower employees and cut costs.


5 gold competencies

Doherty Associates are one of a few UK partners our size to have five gold competencies, mainly around our expertise in cloud services. Our competencies include:

GOLD - Datacenter
GOLD - Cloud Productivity
GOLD - Cloud Platform
GOLD - Small and Midmarket Cloud Solutions
GOLD - Collaboration and Content
SILVER - Application Development


Technical certifications

Microsoft has also recognised our expertise with numerous technical certifications, including:

  • CSP Licensing
  • Networking Infrastructure Solutions
  • Advanced Infrastructure Solutions
  • Mobility Solutions
  • Unified Communications Solutions
  • Information Worker Solutions 

Microsoft and you

Our clients trust us to deliver 24/7 support, no-jargon IT services and the best of Microsoft and cloud technology.

We have already moved more than 20,000 users to the cloud with Office 365.


Partnership with industry leaders

We are also the proud partners of:

Mimecast security and archiving for Microsoft Exchange

  • Mimecast Certified Partner
  • Fortinet Silver partner
  • HP Certified Reseller, offering a full range of HP products
  • CISCO Select Certified Partner
  • Layer2 offering Microsoft SharePoint and Office 365 apps
  • Sharegate simplifying management for SharePoint, Office 365 and OneDrive for Business.
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"Your staff really had their work cut out with this problem, but they ensured we were all up and running again and kept us informed of what would happen next at all times. They have been a calming influence for us when we really couldn’t see a light at the end of the tunnel. Thanks!!"

Lisa, Legal

"Your staff quickly identified that there was an issue with one of the devices in our regional office. After a quick update everything was working correctly. Many thanks."

Matt, Private Equity

"The Helpdesk came up with creative solutions and were able to assist us quickly and efficiently. They also followed up with all parties involved making sure that the solution was effective. Thanks."

Sabine, Property Development

"I am writing to say a very big thank you to you and your team for the forward initiative in addressing our storage issue with Microsoft Exchange. The Team in KL kept me informed every step of the way (which allowed me to sleep better) and delivered as promised more storage on our Exchange server. As you know, I work very closely with your support teams and they are always very helpful and committed to assisting me with my issue."

Bernard, Legal

"Just to say a thank you to yourself and Cathy for arranging the recent work at this office. Another big thank you to your three consultants, who carried out the job with speed, efficiency and unfailing politeness at all times!! Another load off our shoulders…"

Marian, Financial Services

"Just wanted to say thank you on behalf of the London office for the smooth transition of the new PCs. It was a pleasure having your consultant in the office; he put up with us very well the three days he was here (the chocolates were also well appreciated!)."

Josie, Business Services