• Plumis team

Meet the team

  • Plumis Founder William Makant

    William Makant

    Managing Director

    William is an experienced Mechanical Engineer and Product Developer with a family background in the fire protection industry. He led multiple engine development projects at the Ford Motor Company in Brazil, Germany and the UK before joining Plumis. William holds an MBA from Imperial College, London. He likes to cycle and has a keen interest in motorbikes.

  • Plumis Founder Yusuf Muhammad

    Yusuf Muhammad

    Design Director

    Yusuf is a co-inventor of Automist. He’s a multi-award winning industrial designer with an Honours Masters degree in Engineering and a double Masters in Innovation Design Engineering. Yusuf has experience working with P&G, The Department of Health and Research in Motion. Yusuf appeared in Big Life Fix, a science series following a group of tech experts as they tried to come up with innovative interventions to transform the lives of people all over the UK.

  • Plumis Executive Anderson Horst

    Anderson Horst

    Product Manager

    With a degree in Mechanical Engineering and over 10 years experience working in the Automotive industry, Anderson is a key player in the continued development of Plumis and our products. His experience ranges from multi-variable experiment design analysis to managing a team of engineers. Anderson speaks English, Portuguese and German, has a passion for good food and enjoys rock climbing.

  • Plumis Director Suezann Holmes

    Suezann Holmes

    Finance Director

    Suezann holds an MA in International Relations, an MBA in Finance and a BPA. As former CFO for Moo.com and with experience working for Virgin Media and other commercially known companies, Suezann brings a skill set well versed in profit improvement, cost reduction, mergers, divestitures, acquisitions and budgets. Suezann enjoys cycling in her spare time and takes every opportunity to go sightseeing in London.

  • Plumis NED Peter Cowley

    Peter Cowley

    Non Executive Director

    Peter is a Cambridge University Engineering and Computing graduate and fellow of the Judge Business School. He’s run technology and construction businesses for over three decades and is involved in charity and social enterprise governance, as chair and treasurer, on many trustee boards. Peter founded and runs the Martlet start-up investment fund in Cambridge and has invested in over 30 start-ups. He is on the board of seven of these, including Plumis. Peter enjoys fine dining.

  • Plumis Staff Charmaine Waller

    Glynn McCabe

    Senior Embedded Systems Engineer

    Glynn is an Electronics Engineer from the land of the long white cloud, Aoteroa. He has a passion for writing elegant code for embedded systems and is a connoisseur of fried chicken. In his downtime you might find him enjoying a craft beer while reading from one of his many leather bound books.

  • Plumis Founder Dr Alan Hart

    Dr Alan Hart

    Non Executive Director

    Alan is a Plumis Founder and has an MA and PhD in Physics from Cambridge, and an MBA from Imperial College, London. A passionate physicist, he spent 11 years in innovation consulting, bringing science and technology to new consumer products. He’s a named inventor on one granted patent, with two patents pending. Alan enjoys snowboarding and is a third wave coffee enthusiast, preferring artisan, organic, responsibly sourced beans.

  • Plumis Staff Max Bye

    Max Bye

    Software Engineer

    Max is a physics graduate, experienced website and app developer with a background in video game design. He has worked with a number of big commercial tech companies like Mozilla, Facebook, ASOS and M&C Saatchi. He's run a number of start-ups, won a number of hackathons and loves working/playing/breaking state of the art technology. He's also a mindfulness teacher, plays in a band and blogs about the brain.

  • Plumis Staff Dijon Valentim

    Dijon Valentim

    Product Engineer

    Dijon is a Chartered Mechanical Engineer, with experience working in the Automotive Industry for McLaren Automotive Ltd and Group Lotus plc. He has expertise in Supplier Quality Assurance and New Product Introduction. Dijon is bilingual (English & Portuguese), loves to travel and is a keen skier.

  • Plumis Staff Matt schwarzkopf

    Matt Schwartzkopf

    Business Development Manager

    Matthew has over 10 years of experience in marketing and account management. Specializing in the home remodeling industry and large retail distribution centres. He has in depth knowledge of the needs of clients and consumers with the ability to identify opportunities and risks. As Business Development Manager he works with large firms to help them incorporate Automist into their properties. Matthew also has a keen interest in rare beer, weight lifting and spoiling his two dogs.

  • Plumis Staff Caroline Abbiati

    Caroline Abbiati

    Office Manager

    Caroline has a 9 year background in the banking sector, encompassing everything from administration to customer service, and even asset analysis. She holds a bachelor’s degree in business and speaks 3 languages proficiently. In her spare time she enjoys reading and the occasional movie.

  • Plumis Staff Egli Dede

    Egli Dede

    Technical Support & Applications Engineer

    Egli has 15 years’ experience in the building industry. He is a qualified installation electrician with a current 17th edition from JIB. He has a keen interest in product design and spends most of his spare time doting over his young son and family, enjoys football, great food and entertaining.

  • Plumis Staff Robert Wilczynski

    Robert Wilczynski

    Assembly Technician

    Robert has 10 years of management experience in photo industry, maintaining machinery and IT. Robert is a skillful dancer (folk & ballet) - frequently performing in UK and abroad, hobbyist DJ and composer, neuroscience reader.

  • Plumis Staff Przemek Wilczynski

    Przemek Wilczynski

    Assembly Technician

    Previously a store manager of a leading DIY store, Przemek has factory experience of production lines, producing wood laminates for kitchen units and cabinetry. In his spare time he can be found moving across the floor as a semi-professional dancer and loves long distance cycling.

  • Plumis Director David Leigh

    David Leigh

    Commercial Director

    David has over 25 years experience in the Fire industry, including Director positions with Thorn Security (ADT), Kidde Fire and BRK Brands Europe. In 1998 he founded Leigh-Anderson Associates, a multi-discipline marketing & business development agency, specialising in the Fire Industry, and has managed the Plumis-Automist Accredited Reseller Network, PR, and advertising since 2012. David is a keen sailing enthusiast, enjoys Rugby Union, real ale and fine wines.

  • Plumis Career Plumis Stormtrooper

    Plumis Stormtrooper

    Top talent

    We’re always on the lookout for outstanding and unique individuals who share our values. Being a part of Plumis requires an independent streak and creative collaboration skills to help us make our products the best they can be. We want to find the best and we move fast, so if this sounds like you, send your CV to recruitment@plumis.co.uk

  • Plumis Advisor Paul Anson

    Paul Anson


    Paul Anson was co-founder and COO of Inca Digital Printers where he created and grew a manufacturing and customer service operation turning over £25M. Backed by two prominent VC’s, Inca was acquired in 2005 by Dainippon Screen providing a good return for investors and founders. Prior to that, Paul was with Cambridge Consultants, Michelin Tyre plc and Argo Cars.

  • Plumis Advisor Tony Greenwood

    Tony Greenwood


    Tony Greenwood was born in 1958 and lives in Surrey. He has been a Management Accountant throughout his career and has held a number of financial controller roles in SME's. He has been a Plumis shareholder since the first round of external investment.