About Us


We are truly passionate about supporting the growth of small and medium sized businesses
(we do after all make up approximately 95% of the WORLDS businesses!)

At MOMENTUM Business Support Ltd we are passionate about driving the growth and success of small and medium sized businesses.

Founded in 2013 by Mikki Harris. We started out providing administration support services and have grown over the years to offer almost all of the back office ‘teams’ you need to successfully run your business.

Our core service offerings are admin support, virtual assistants, research, digital marketing, social media management, accounts, bookkeeping and credit control, HR and recruitment, project and event management, and we also offer a unique and personal call answering service. We work with a variety of businesses in a number of sectors and our combined experience and flexible approach mean that we can work with any company in any industry.

We like to practice what we preach and encourage the same flexibility with our people as we do with our clients. We don’t have offices (we don’t need them and we’re very eco conscious!) and we aren’t driven by set working patterns. We all work virtually from home offices or shared working spaces, giving us the ability to work with all time zones and business schedules. We understand that your needs go beyond the boundaries of good old fashioned 9-5. (And all this also means there’s no need for you to find extra space, desks or equipment!)

We are truly passionate about supporting the growth of small and medium sized businesses (we do after all make up approximately 95% of the WORLDS businesses!) and all of our internal improvements and developments are focussed on how we can serve you better.

If you’d like to find out more about us and how we can help you, get in touch now and make it happen..


  • Provide exceptional customer centric services of the highest quality, exceeding expectations.
  • Value all of our internal and external relationships, past, present and future, individually and equally.
  • Keep our promises, honouring all of our agreements – we believe in trust.
  • Are simple and easy to use – our people and our services.
  • Stay respectful and supportive being flexible and understanding in our approach.
  • Remain committed to integrity – honest, trustworthy, loyal and fair.
  • Provide clear and simple pricing structures ensuring excellent value for money.
  • Take confidentiality seriously, adhering to the Data Protection act.
A notebook with the words CORE VALUES written on the front with a pen and red teacup next to it
An outline of seven people contrasting against a sunset view


  • Always encourage free thinking and idea generation.
  • Value initiative and support self-development.
  • Regularly review performance and provide appropriate training and support.
  • Continually track time, monitoring and constantly evolving our approach.
  • Make well informed and efficient decisions.
  • Communicate openly and honestly in a constructive and professional manner.
  • Support each other fully, in all areas.


  • Support our clients with their business visions and goals and do everything we can to help them make it happen..
  • Always listen and work with our clients to understand their needs, providing expert advice and opinions that count.
  • Be flexible in our approach to charges, fees and retainers. Providing the best support tailored to each individual client.
  • Respect the ownership of all intellectual copyright vested in our clients’ intellectual property.
  • Are committed to continuous improvement and development of our team and services, anticipating the changing needs of our clients and their sectors.
A man an woman smiling while sitting at a desk using a mobile phone and reading a document
rocks stacked on top of eachother in a tall structure on the edge of a lake


  • Comply with all applicable laws and internal guidelines.
  • Help employees realise and develop their potential, starting with a strong recruitment process – hiring based on attitude, skills and expertise.
  • Protect the interests of our People, Clients and Company with unbiased, clear and fair contracts.
  • Grow through continuous improvement.
  • Are committed to providing an environment free from discrimination, or inappropriate behaviour.
  • Value equality and providing a healthy, motivated, positive work environment.


"We used MOMENTUM to manage our Social media accounts, I was very happy with the service they provided. Amelia was very good at researching topics to post, and created some fantastic design creatives that were really visually appealing and helped push the messaging out effectively. I would highly recommend Mikki and MOMENTUM for your business needs." - Justin Howard, Blue Billboard

"Kristina and MOMENTUM have been providing all our admin needs now since 2017, the business runs smoothly and efficiently and we have been able to grow the business knowing that all back office jobs are in hand. 
We also have access to expert HR and business advice as and when we need it. The service is second to none and we would recommend using MOMENTUM for all office needs." - Dean Goff, Arun Drying Solutions Ltd

"Your service is amazing! Such a reassurance." - Lou Bruce, Melrose Care

"I have worked with MOMENTUM for the past couple of years, and during this time I have found their organisational and business strategy skills very motivating. I loved talking through my ideas, which they expertly put into a yearly goal plan that I could follow week by week. Being at the end of the phone was a great support and really did help me to 'make it happen'. I feel my business has since grown." - Helen Tinner, Helen Tinner Photography

"Mikki and her team take all the stress away from the everyday running of the business" - Kev Pearce, Cedar Garage

"I’ve known and been friends with Mikki at MOMENTUM Business Support Ltd for many years and she’s always been super helpful/ resourceful for my business. However, summer 2019 was the first time I actually hired her to help with building out my Fitness business website. 

I asked her for help after spending months either procrastinating about putting the work in myself or pulling my hair out because I couldn’t understand half of it. So her taking the time and stress out of it was perfect so I could focus on running the parts of my business that I’m actually good at. 

From start to finish she was professional, proactive and did exactly what she said she would, when she said she would do it by. We experienced multiple bumps in the road (mostly due to my site hosts) and Mikki couldn’t have done more to quickly resolve the issues. 

She is still doing ongoing work on my website to help further develop it, and I’m sure it won’t be long before her and her team are helping with other aspects of my business also. 

I can’t recommend Mikki and MOMENTUM enough." - James Heybourn, James Heybourn Fitness

"We used Momentum to help us through GDPR when it was coming into force. We now use them for our Social Media marketing and their friendly, consistent approach is really helpful. It’s good to have someone you can rely on!" - Vicki Banks, The Claremont Hotel Hove


“The relationship with Liz and the MOMENTUM team has achieved exactly what I wanted, its freed up my time to focus on more strategic components of the business, which should enable us to achieve our growth plans.”  - Paul Varley, Navigate Commercial Finance Ltd

"Kristina from MOMENTUM has been with me from the start of setting up my limited business, she has put all admin procedures in place and I now have an efficient and streamlined virtual office that I do not need to worry about, this leaves me free to get on with my work and expand the business further.
The bonus with MOMENTUM is that I also have access to expert business advice and HR as and when I need them. An all round service that I would be lost without!" - Karl Tandy, KT Building Ltd

"Amelia and Mikki have been expertly managing our social media channels since 2017, understanding exactly what we need and implementing a sensitive yet creative approach in line with our services. I would highly recommend MOMENTUM. Their understanding, flexibility and expertise are second to none." - Max Webber, HD Tribe

"Mikki and the MOMENTUM team are absolutely fantastic. They are quick to respond and quick to work out solutions and implement them. They are professional and friendly, knowledgable and very helpful. Mikki is also happy to take on board our ideas or advise us when we have questions. We very much recommend Mikki and her team!" - Meg Fenn

"I recently had a one month contract that Mikki and her team took on for me.  MOMENTUM Business Support provided amazing results for me.  I have recommended MOMENTUM to a few contacts and I will continue to do so, great success deserves word of mouth marketing." - Alan Richardson, Federation of Small Businesses

“On behalf of the organising committee, please accept our sincere thanks for your support as our social media Partner this year.  We have thoroughly enjoyed working with you again and the #AWBAwards campaign and the coverage provided have been amazing and very much appreciated by us all.” - Nicky Dumbleton, Adur & Worthing Business Awards

"MOMENTUM has been a key part in helping us to build and drive our business forward. Everything from helping us develop our systems, to managing finance, HR and our basic administration. Always available to help no matter the challenge. Absolutely invaluable support for us. Thank you so much guys." - Joseph Duncan, Ethica Properties

"I have been using MOMENTUM Business Support for a year now. Mikki helped me set my business up from the beginning and gave me loads to think about, asking all the right questions to help me along my journey and offering very strong support throughout. MOMENTUM have since gone on to help me with setting up contracts and organising my admin." - Claire Bassett, Spring Hair Boutique

"We went to Mikki with a specific issue which required a very professional but friendly approach, and Mikki’s team delivered... And the end goal was easily achieved. I would have no hesitation in recommending them and using them again in the future!" - Shayne Cuthbert, Alverstone Autos Ltd

"I started my removal company last year and needed help with increasing my exposure on social media. Having got in contact with Mikki Harris, via a recommendation, I found her and her colleagues to be extremely helpful and knowledgeable. Within a short space of time Mikki got my Facebook and Twitter account up and running with a schedule of content which is updated daily. Having not a lot of experience myself in this field I have found it invaluable to have this professional and experienced team supporting me." -Nathaniel Scott, Bennetts Removals and Deliveries South Ltd

“Having great people invest and engage themselves, along with all their expertise to promote my book has been fantastic. The vision, quality of the product produced and the care shown has surpassed my wildest dreams and made it a truly exciting and enjoyable experience. The professionalism of the posts created by Amelia and the MOMENTUM team have already received great comments and engagement and even produced a work opportunity, all within the first week!” - David Howell, Author Of Speak Up, Listen Down

“The MOMENTUM team are amazing! It seems like there's nothing they can't do, and they are so supportive and reliable. It feels like they really care about our business and, as a small start-up, it makes such a difference having a multi-skilled team that we can call on for varied types of support. I don't know what we'd do without them!” - Watch This Sp_ce

"MOMENTUM has been a huge support to my business removing the burden of administration from my shoulders so that I can focus on running my business. They act as a seamless part of my company that I can use as and when I need to, this flexibility is key for an SME business. Mikki is also a pleasure to deal with, highly professional, efficient and a lovely person too! I wouldn't hesitate to recommend them to anyone who wants to grow their company, they're the perfect ally." - Natalie Montagnani, Page Marketing

"Mikki and her team have been a great help to my business over the past couple of years. Particularly in regards to helping me with my apprentice. We are a small carpentry and cabinetry company and as such found it hard to have the time to liaise with the college and apply for funding through the CITB. MOMENTUM really helped us with this and then went on to set up things like PAYE which I didn’t have any idea about. They’ve been a fantastic help and it’s really allowed me to focus on what I do best." - Louis Meredith, Louis Meredith Carpentry

"We have been working with Mikki and her team at MOMENTUM Business Support since May 2014 and she has been an incredible resource for us. Mikki has helped us in one way or another with every element of running our business, providing excellent organisational and administration services and PA support. She has helped to streamline a number of processes and supported us with many changes. We are currently in the process of creating a new business in a totally unrelated market to our current business and MOMENTUM has been an integral part of this new venture. Without Mikki's help, support and knowledge we may not have had the time or indeed the confidence to take on such a challenge. I would highly recommend MOMENTUM to anyone looking to organise, grow and develop their business." - Paul & Abbie Duvall, Tide Solutions Ltd

"We use MOMENTUM to do our regular weekly reports on outstanding payments among a whole host of other administrative tasks.

It lightens the load for us and is often done far quicker, to a higher standard and much more efficiently, allowing us to concentrate on the core parts of running our business.

Highly recommended." - Luke Brice, Clean Cut Gardening

"I have only recently started using MOMENTUM and am already extremely impressed with the level of service provided. Kristina has been fantastic; no job is too big or small and is dealt with in a professional and timely manner.  

Finally, my to-do list is going down! 

I also took advantage of the new call answering service provided which has been a great help. 

The best all-round service and cannot recommend highly enough."

- Jordan Haye-Ellis, JHE Construction Ltd

“Would highly recommend the MOMENTUM team and their call answering service. It has revolutionised our processes, giving me significantly more hours to focus on the business, and their personal approach means I know our clients are getting a great service too. I couldn’t be happier with their support and service levels.”

- James Brock, James & James Estate Agents Ltd