--- title: Interim Sales Consultant | Tania Sierra Measures description: Find experienced interim sales consultants to help grow your business. Our consultants offer strategic solutions and expertise tailored to your needs. Contact us for more information. --- [Skip to content](https://interimsalesconsultant.co.uk#main-content) [![ISC-2018-Grey-Logo-Final-Colour](https://interimsalesconsultant.co.uk/hs-fs/hubfs/ISC-2018-Grey-Logo-Final-Colour.png?width=465&height=130&name=ISC-2018-Grey-Logo-Final-Colour.png)](https://interimsalesconsultant.co.uk/?hsLang=en) - [Revenue Shared Agreements](https://interimsalesconsultant.co.uk/revenue-shared-agreements) - [Interim Management](https://interimsalesconsultant.co.uk/interim-management) - [Strategic Consultancy](https://interimsalesconsultant.co.uk/strategic-consultancy) Open main navigation Close main navigation - [Revenue Shared Agreements](https://interimsalesconsultant.co.uk/revenue-shared-agreements) - [Interim Management](https://interimsalesconsultant.co.uk/interim-management) - [Strategic Consultancy](https://interimsalesconsultant.co.uk/strategic-consultancy) - [Contact us](https://interimsalesconsultant.co.uk/contact-us) [Contact us](https://interimsalesconsultant.co.uk/contact-us?hsLang=en) **Home** # Looking for an Interim Sales Consultant? [Get in touch](https://interimsalesconsultant.co.uk/contact-us?hsLang=en) ![Ferrero](https://interimsalesconsultant.co.uk/hs-fs/hubfs/Ferrero.jpg?width=110&height=90&name=Ferrero.jpg) ![Nestle](https://interimsalesconsultant.co.uk/hs-fs/hubfs/Nestle.jpg?width=110&height=90&name=Nestle.jpg) ![GSK](https://interimsalesconsultant.co.uk/hs-fs/hubfs/GSK.jpg?width=110&height=90&name=GSK.jpg) ![Aryzta](https://interimsalesconsultant.co.uk/hs-fs/hubfs/Aryzta.jpg?width=110&height=90&name=Aryzta.jpg) ![Emmi-Group](https://interimsalesconsultant.co.uk/hs-fs/hubfs/Emmi-Group.jpg?width=110&height=90&name=Emmi-Group.jpg) ![team of successful business people having a meeting in executive sunlit office](https://interimsalesconsultant.co.uk/hubfs/team%20of%20successful%20business%20people%20having%20a%20meeting%20in%20executive%20sunlit%20office.jpeg "team of successful business people having a meeting in executive sunlit office") **Providing what you need** ## We develop effective strategies and design high quality scalable solutions. ##### We create tailored strategies and deliver scalable solutions to help your business grow. As UK-based Interim Sales Consultants, we offer a full range of consulting services with the tools and knowledge you need to thrive. From brainstorming new ideas to refining your strategy, we work closely with you every step of the way. In 2025, we’re excited to launch our own product line in support of UK charities—starting with the Brain Tumour Society (Registered Charity no. 1150054, SC045081). Do get in contact to discuss:    - Revenue Shared Agreements - Interim Management - Strategic Consultancy **services** ## Revenue Share Agreements     [Learn more](https://interimsalesconsultant.co.uk/revenue-shared-agreements?hsLang=en) ![Portrait of a cheerful businesswoman sitting at the table in office and looking at camera](https://interimsalesconsultant.co.uk/hubfs/Portrait%20of%20a%20cheerful%20businesswoman%20sitting%20at%20the%20table%20in%20office%20and%20looking%20at%20camera.jpeg "Portrait of a cheerful businesswoman sitting at the table in office and looking at camera") ## An Interim Manager can replace a senior person very quickly or provide cover for maternity or sickness. Alternatively, be a qualified specialist to manage a particular project be it sales strategy or sales optimisation. ![business documents on office table with smart phone and laptop computer and graph financial with social network diagram and three colleagues discussing data in the background](https://interimsalesconsultant.co.uk/hubfs/business%20documents%20on%20office%20table%20with%20smart%20phone%20and%20laptop%20computer%20and%20graph%20financial%20with%20social%20network%20diagram%20and%20three%20colleagues%20discussing%20data%20in%20the%20background.jpeg "business documents on office table with smart phone and laptop computer and graph financial with social network diagram and three colleagues discussing data in the background") **services** ## Interim Management   [Learn more](https://interimsalesconsultant.co.uk/interim-management?hsLang=en) **services** ## Strategic Consultancy   [Learn more](https://interimsalesconsultant.co.uk/strategic-consultancy?hsLang=en) ![Close up Two Happy Young Businesswomen at the Office Talking About Business Report on Paper.](https://interimsalesconsultant.co.uk/hubfs/Close%20up%20Two%20Happy%20Young%20Businesswomen%20at%20the%20Office%20Talking%20About%20Business%20Report%20on%20Paper..jpeg "Close up Two Happy Young Businesswomen at the Office Talking About Business Report on Paper.") ## Testimonials Responsive Testimonial Slider ##### Montezuma's Chocolates Role: Head of Sales: Daisy Silvey, Commercial Development Manager, Montezuma's Chocolates “I have really enjoyed working with Tania over the last 6 months at Montezuma’s, she has been a great Leader for the sales team, understands the bigger picture and is great at prioritising work loads. Her energy and determination shines through which has been very motivating and she has been great at giving open and honest feedback on the go which has been really useful for personal development. Although she was interim, it felt like she was here for the long term as she adapted to the Montezuma’s culture really well and made decisions for the longevity of the company, I would definitely recommend Tania and wish you all the best for the future!I have really enjoyed working with Tania over the last 6 months at Montezuma’s, she has been a great Leader for the sales team, understands the bigger picture and is great at prioritising work loads. Her energy and determination shines through which has been very motivating and she has been great at giving open and honest feedback on the go which has been really useful for personal development. Although she was interim, it felt like she was here for the long term as she adapted to the Montezuma’s culture really well and made decisions for the longevity of the company, I would definitely recommend Tania and wish you all the best for the future!” 2022 ##### Inverleith LLP Role: Interim Sales Director: Michael Atkinson, Senior Investment Director, Inverleith LLP “Tania was a delight to work with. We required an Interim Sales Director who could hit the ground running, who could implement structure and processes that could be successfully and productively maintained post the interim period, someone who could help train a wider sales team and an individual who was a consummate professional in terms of managing key accounts. With Tania, we got all of this, combined with a very transparent, as well as fun, approach.” 2022 ##### Montezuma's Chocolates Role: Head of Sales: Bruce Alexander, Managing Director, Montezuma's Chocolates “Tania joined at a challenging time when customer relationships were fragile and some recent delistings. Tania quickly stabilised the situation and over the course of the year rebuilt many customer partnerships and gained incremental business. She has excellent technical skills which she used to build capability and confidence in the sales team and they have flourished as a result. She is not afraid to voice her opinion which was always constructive and considered and she was also respectful of others and worked well in the Executive team. Having worked with interims in the past, some are only there to provide services and take a pay cheque while others truly integrate themselves into the business and take a long term view with decison-making. Tania definitely fits into the latter category and I wouldn't hesitate to employ her again or recommend her to others.” 2022 ##### GSK Role: Customer Business Manager: Tracey Campbell, Account Manager, GlaxoSmithKline “Tania is a pleasure to work with. An organised, competent individual who would be a benefit to any organisation or client.” 2012 ##### GSK Role: Customer Business Controller. John Whitfield; Global Head of Marketing, Skins “I worked with Tania across multiple projects she is a Tania is a star performer. She was instrumental in developing category, sales and brand driven solutions for her accounts. She is universally liked, a clear communicator and the type of person you wish to be working with in either account facing teams or cross functional teams. I recommend her unreservedly.” ##### Sodexho Daniel Corlett; Global Product Manager - Sodexho “Tania is highly driven individual with a can-do attitude. A real team player with bags of enthusiasm, brilliant sense of humour and great fun!” ##### GSK Role: Customer Business Manager: Testimonial given by: Marc Herbison; Customer Development Manager, GlaxoSmithKline “Tania was my direct line manager for around a year, where we jointly managed Bestway / Batleys and Landmark Wholesale. She was a huge support to me during this time, creating stretching yet achievable goals and targets and driving my personal development plan. She is extremely detailed and committed in everything she does and faces up to issues and adversity head on, whilst keeping a tremendously commercial attitude. It is no coincidence that Tania has progressed as quickly as she has. It was a joy working with her, and I would like to do so again at some point in the future.” ##### Hasbro Malcolm Ottley; Sales Director, Hasbro “Tania is a very structured, analytical and competent person. She also has good people management skills and I would gladly recommend her.” 2012. ##### GSK Role, Customer Business Manager, Testimonial given by: Gregor Thain; Senior Sales Capability Manager, GlaxoSmithKline “Tania is a very commercially savvy consultant, who is excellent at driving results whilst bringing a great sense of humour to her work.” ##### GSK Role: Customer Business Manager: Kate Philpot (nee Apenteng); Field Sales Director, GlaxoSmithKline “Tania is a dedicated, focused, results-driven manager with a great passion for the performance and the development of the people she manages. She brings great energy, enthusiasm and good humour to everything she does and was a pleasure to have in my team. I wouldn’t hesitate to recommend her to others” 2012. ##### GSK Role; Customer Business Manager: Richard Bothams; HR Director, GlaxoSmithKline “Tania is a goal focused person. She has good commercial acumen coupled with excellent communication skills. And a sense of humour!” ##### GSK Role: Customer Business Controller ( employee) Malcolm Ottley; Grocery and Impulse Controller ISC has a very structured, analytical and competent person. She also has good people management skills and I would gladly recommend her. ##### Aryzta Rob Cooper; Supply Chain Manager “Our ISC contact built a strong reputation in a very short time as someone who is dedicated, ambitious, result driven leader and thoughtful individual. If you ever need someone to deliver under pressure, no slip-ups, just results, our ISC contact will be the right person for you! She is great in dealing with difficult situations and a fantastic problem solver. I have no hesitation in recommending her to anyone looking for someone who gets things done!” ##### Aryzta Testimonial from Des Bell;- Sales Director, “I’d recommend ISC following an assignment as a ‘de facto’ Account Director. During the assignment ISC added significant value through achieving the commercial development objectives” ##### Aryzta Assignment: Account Director, Testimonial from Simon Atwell; Channel Business Manager, Aryzta “I worked with ISC on a number of projects while at Aryzta. Our contact was extremely self motivated and has a can do attitude to pursuing goals. I can recommend her without hesitation to help drive your business forward.” ##### Proximo Spirits Assignment: Head of Retail. Testimonial given by Andrew Clifton, General Manager, Proximo Spirits, UK & Ireland ISC has an experienced sales professional who brings with her a wealth of experiences from a wider range of large and small consumer goods companies that can add value to a commercial business structure. During our time working together our contact has improved our sales capability and expertly, and sustainably, managed our retail business, enhancing our processes and providing a steady influence the way we go to market in the off trade arena. As a professional interim consultant she has introduced new structures and ways of working, gained from her vast and varied experiences. I am happy to recommend ISC to any large or small business that is looking for an interim colleague that can adapt to their specific industry and share knowledge and learnings with existing employees across the organisation. ##### Emmi Gruppe Assignment: Convenience strategy UK, Retail controller for ASDA/Morrisons, Retail controller for Tesco/Sainsburys. Testimonial given by Ben Sproson, Head of Sales ISC has been a great asset to Emmi Uk, directly managing some of our largest major multiple customers, and taking the lead in creating and implementing a UK specific convenience strategy. ISC has a high energy approach to work, and with the drive to succeed ISC has delivered some great results which will have longevity for Emmi Uk and our customers. ##### Emmi Gruppe Assignments: Convenience strategy UK, Retail controller for ASDA/Morrisons, Retail controller for Tesco/Sainsburys. Testimonial given by Julie Plant, MD, UK Tania has worked on several assignments for us at Emmi UK. She is a highly motivated sales professional with experience relevant to any FMCG business operating with the UK Grocery market. She has proven the return on our investment in utilising her consultancy and I would thoroughly recommend her. ##### Ferrero UK Assignment: Retail controller for Convenience and New Business. Testimonial given by Anna Remington , UK convenience controller Our contract was a positive, motivated, self-starter, quick thinker and process driven sales manager. Leaving my newly formed team whilst on maternity leave for six months in her capable hands, was reassuring and ensured the new business achieved was maintained and developed. If you want someone to be dropped in and hit the ground running, ISC's the right company for you! ##### Nestle UK Assignment: Account Director Retail ( RSV £100m) Testimonial from: eCommerce Category Manager at Nestlé Purina North America From the first day that ISC joined our team you could tell our contract was there to get stuff done and make an impact. During her brief time at Purina she displayed a real determination to get results in a collaborative and sustainable way. Working with a challenging customer she established great rapport with them strengthening the relationship and went on to build an effective partnership with the retailers buying team within a short timeframe.
She led the account team with energy and enthusiasm building great engagement across the team and creating a strong team spirit. She also had a great attention for detail especially when leading the preparation for key customer presentations.
Finally she wasn't one to shy away from challenging the internal ways of working demonstrating real courage. It was a pleasure working with her and hope we get the chance to work together again at some point in the future. [Interested in working with us?](https://interimsalesconsultant.co.uk/contact-us?hsLang=en) [![Interim Sales Consultants Ltd](https://interimsalesconsultant.co.uk/hs-fs/hubfs/ISC-2018-Grey-Logo-Final-Colour.png?width=465&height=130&name=ISC-2018-Grey-Logo-Final-Colour.png "Interim Sales Consultants Ltd")](https://interimsalesconsultant.co.uk/?hsLang=en) Interim Consultants offers a wide range of consulting services with necessary tools and expertise to help grow your business. We partner with our clients from start to finish, focusing on their needs while producing new ideas, developing effective strategies and designing high quality and scalable solutions. [linkedin-in icon](https://www.linkedin.com/in/taniasierrameasures/) **Get in touch with us**   **Email** info@interimsalesconsultant.co.uk   **Phone** +44 7540815628 Copyright © 2026, Interim Sales Consultants Ltd Interim Sales Consultants Ltd (trading as Clever Tails) Company Number: 08306768 VAT Registration Number: GB164757380