Meet The Team - One Consulting Group

Jonathan Arnold

Company Director

Jonathan Arnold

Jonathan is the founder of OCG, and set up the company as a freelance contractor in May 2008. The company started to expand and grow in 2018 and now employs 30 staff, has annual turnover of circa £2.5m and delivers estate & facilities management, construction and IT projects. Jonathan’s background is public sector project management,…

Mark Norrell

Director

Building Consultancy

Mark Norrell

Mark has a wealth of public and private sector experience and has worked in senior management positions at London Borough of Sutton, London Borough of Croydon, and West Sussex County Council.

Claire Hannan

Consultant

Digital

Claire Hannan

Claire is an ICT consultant with strong business analysis and project management skills. A dedicated problem solver, Claire enjoys the process of stakeholder engagement to understand requirements and deliver solutions that promote collaboration across businesses.

Corrine Sinfield

Consultant

Estate Management and FM

Corrine Sinfield

Corrine is a new consultant of OCG coming with over 20 years’ experience as a Facilities Management professional. She has a strong background in hard and soft FM services including statutory compliance, service transformation and contract management. She comes with extensive experience within the public sector including with schools, corporate and housing estates. Corrine has…

Lindsay Payton

Consultant

Estate Management and FM

Lindsay Payton

Having worked in a variety of project management roles within the financial services industry, Lindsay is commercially and financially astute and has extensive experience of delivering complex projects and programmes whilst ensuring stakeholder relationship management is at the heart of everything she does. She has a ‘can do’ attitude and will throw herself into all her projects.

Teresa Hauptfleisch

Consultant

Digital

Teresa Hauptfleisch

Teresa (or Terri as most commonly known), has been working in ICT her entire career, specialising in Property Asset Management software for over 20 years. Software implementations are Terri’s focus, collaborating closely with clients on configuration, data collection and cleansing, process mapping and user acceptance testing.

Charlotte Crabbe

Senior Project Manager

Estate Management and FM

Charlotte Crabbe

Charlotte joined OCG in 2019 with 10 years’ experience in the Property industry, working in both the public and private sectors. Shortly after joining OCG, Charlotte became a registered Prince2 practitioner and in 2020 was promoted to Project Manager.

Ekaterina Panayi

Senior Project Manager

Building Consultancy

Ekaterina Panayi

Ekaterina (or better known as Kat, around here), is a passionate and experienced Senior Project Manager with a demonstrated history of working in operations, project, and asset management for over thirteen years in the private sector. Over the years of her career, she has formed into a strong, self-motivated professional who is not shy to pitch in where needed.

Harry Gravett

Senior Project Manager

Building Consultancy

Harry Gravett

Harry joined the company in 2024, as Senior Project Manager within the construction team and is based in our southern office. With vast experience working collaboratively with a multitude of stakeholders & clients, he has a track record of delivering construction projects in complex operational environments in the commercial, educational and residential sectors. With more…

Laura Chapman

Project Manager

Estate Management and FM

Laura Chapman

With a background in Psychology, as well as 11 years in the Fashion Industry and 2 years in Construction, Laura brings a range of skills including critical path management, organisation and communication with worldwide suppliers and stakeholders. She enjoys transferring these skills into her current role, meeting new clients, and working to a project plan.

Shelly Smith

Project Manager

Building Consultancy

Shelly Smith

Shelly is an experienced communications and project management professional with a proven history of developing and leading multi-faceted projects. Prior to joining One Consulting Group she spent 20 years project managing high-profile campaigns for one of the biggest brands on the British high-street. Shelly uses that unique experience to help our clients find the right solution to challenges and achieve key ambitions.

Ashley Chrysanthou

Project Assistant

Estate Management and FM

Ashley Chrysanthou

Ashley joined OCG in September 2023 after working as Senior Contracts Coordinator at Airswift, a global multi-million-dollar business for 8 years and has worked on various projects in the UK and abroad in the oil and gas sector. With a keen eye for detail, Ashley is used to working simultaneously on small and large projects,…

Irina Russu

Project Assistant

Building Consultancy

Irina Russu

Irina’s personal interest for Project Management can be traced to her pre-professional days, whether those were smaller scale group activity projects or organising higher level events for the entire school. After having worked for 12 years in a variety of different businesses and teams and having built a strong foundation in sales and account management as well as developing core skills in relationship management.

Limesh Joshi

Associate Consultant

Digital

Limesh Joshi

With a strategic and collaborative mindset, Limesh is adept at guiding organisations through complex transformation and change. This typically involves supporting organisations to embrace new ways of working, implementing innovative technologies, and coaching and developing teams. Limesh’s mantra is always to add value and leave the organisations he works for in a better position than what he found them in.

Michelle Allen

Operations Manager

Operations

Michelle Allen

Having 11 years’ experience in management of an Administration and Logistics Department for a multi-million-dollar, global business, Michelle thrives on using her problem solving and organisational skills to maximise departmental and procedural efficiency.

Vicky Tozer

Employee Relations Manager

Operations

Vicky Tozer

Vicky joined OCG in September 2023. With a wealth of experience in communications and employee relations Vicky began her role of Employee Relations Manager within the Operations department. Whilst regularly keeping herself up to date with employment law as well as key changes within Councils and the local government sector . Vicky is a trained…

Joanne Nasse

ISO & Performance Manager

Operations

Joanne Nasse

Joanne has over 20 years’ experience working in a range of client-driven, administrative, and secretarial roles within both the public and private sectors. Joanne began working for the company in 2018 as a Project Administrator but quickly identified the need for a back-office role to be created and so became the Business Administrator.

Karen Thompson

Assistant Finance Manager

Operations

Karen Thompson

Karen has worked within Finance & Administration for 25 years. She loves organising and tidying up those numbers. She enjoys the office environment and mingling with her colleagues. Always happy to help others.

Becky Herbert

Finance Administrator

Operations

Becky Herbert

Becky joined OCG in December 2024 as an Administrative Assistant, bringing over 25 years of experience in the financial and construction industries. Throughout her career, she has held various roles, from administration to managerial positions, developing a strong expertise in financial processes and project coordination. In her role at OCG, Becky is responsible for key…

Louise Chamberlain

Marketing Co-ordinator

Operations

Louise Chamberlain

Louise joined OCG in September 2023 in a newly created role for the company. She oversees all aspects of marketing, including print, digital, merchandise, and growing our presence across social media platforms. Louise works closely with the entire team to share up-to-date news and information about OCG, as well as updates from our external partners…

Jonathan Arnold

Jonathan Arnold

Mark Norrell

Mark Norrell

Claire Hannan

Claire Hannan

Corrine Sinfield

Corrine Sinfield

Lindsay Payton

Lindsay Payton

Teresa Hauptfleisch

Teresa Hauptfleisch

Charlotte Crabbe

Charlotte Crabbe

Ekaterina Panayi

Ekaterina Panayi

Harry Gravett

Harry Gravett

Laura Chapman

Laura Chapman

Shelly Smith

Shelly Smith

Ashley Chrysanthou

Ashley Chrysanthou

Irina Russu

Irina Russu

Limesh Joshi

Limesh Joshi

Michelle Allen

Michelle Allen

Vicky Tozer

Vicky Tozer

Joanne Nasse

Joanne Nasse

Karen Thompson

Karen Thompson

Becky Herbert

Becky Herbert

Louise Chamberlain

Louise Chamberlain

Let’s work together