Our Team

Our dedicated team brings together over 63 years of combined experience in HR systems and strategies, individually selected for their diverse expertise and unwavering passion for the people profession.

Michael Halling, CEO and Founder of Vitro

Michael Halling

Founder & CEO

Michael, or Mike, is the CEO of Vitro and works closely with clients to discuss and define their current and future HR ambitions across the talent management spectrum. He knows that technology and process improvements are the greatest organisational enablers and understands systems and processes which can help an organisation meet their needs. 


Mike is great at helping clients break down large concepts into tailored projects, each fit for purpose and best delivered with a highly collaborative approach. He maintains an advisory role across our key service offerings and specialities including employee experience, change management, managed services, and programme management as well as other strategic initiatives.

Dieter Deuer, Head of Technology and Innovation

Dieter Deuer

Head of Technology & Innovation

Dieter is our Head of Technology and Innovation and a key member of our senior leadership team. With 20 years of experience, he has expertly used technology to advance learning in the Financial, Energy, and Sustainability sectors. Dieter excels in strategic leadership within HR and learning, successfully managing dedicated teams.


Dieter's past achievements include the successful implementation of comprehensive HR technology stacks, including social learning platforms, Learning Management Systems (through Cornerstone), and skills-based capability frameworks. His initiatives have enhanced several learning journeys and empowered users to work more efficiently and achieve greater results.



Tom Fisher, Head of Client Engagement

Tom Fisher

Head of Client Engagement

Tom is Head of Client Engagement at Vitro which covers two key aspects: focus on maintaining and developing client relationships and using his experience as an implementation Consultant to lead solution ideation. Tom was a client within the construction industry before joining the team in 2018 and appreciates the importance of Vitro being a trusted partner. 


Tom actively supports clients to achieve their goals, reviews Cornerstone’s latest developments and seeks out new initiatives for clients which add value, and make a real difference to their strategic operations.  With a CIPD qualification, Tom specialises in learning and development and enjoys delivering a first-class relationship service.

Jenny Cornforth, Head of Transformation Experience

Jenny Cornforth

Head of Transformation Experience 

Jenny is our Head of Transformation Experience. She joined Vitro in 2019, bringing with her a background in HR Technology from the financial services industry, where she successfully implemented and managed Cornerstone while obtaining CIPD certification. Jenny oversees our team of consultants, actively fostering a proactive approach to build confidence and resilience, and offering continuous support as needed.


Jenny is deeply passionate about harnessing technology's full potential. She excels at resolving challenges, all while remaining acutely aware of the change cycle. Her guidance empowers clients and project teams as they embark on their unique transformation journeys and embrace change.

Jamie Hammond, Transformation Experience Consultant

Jamie Hammond

Transformation Experience Consultant

As one of our Transformation Experience Consultants (TX), Jamie works within the transformation team to deliver process and systems design, configuration and implementation for our clients. 


Having joined Vitro in 2022, Jamie adds to the depth of technical knowledge on our team. A master of systems implementation, Jamie specialises in the full Cornerstone suite, and HiBob platform as well as introducing new modules, optimising existing processes and discussing best practice scenarios from a systems-agnostic perspective. Jamie’s background in client-side implementation means he understands the challenges clients may experience throughout delivery and helps them to navigate and mitigate those challenges.

Gillian Baird, Transformation Experience Consultant

Gillian Baird

Transformation Experience Consultant

Gillian is another one of our talented Transformation Experience Consultants (TX), and a key member of the transformation experience team. Gillian leads clients through process reviews, configuration designs and implementations of all systems but specialises in Cornerstone products. 


Gillian comes from a private and public sector background, with over 20 years’ experience in business support and analytical roles. Gillian has spent the last 15 years specifically in the HR sphere with an emphasis in learning technologies. She enjoys working with clients to identify business process improvements in conjunction with good systems governance helping them to reach their potential whilst supporting their strategic goals.



Rhianna Knight-McGrath, Marketing Assistant

Rhianna Knight-McGrath

Marketing Assistant

Rhianna is our dedicated Digital Marketing Assistant, responsible for managing all things marketing. She leads the company’s marketing communications strategy by planning, and implementing marketing campaigns that boost brand awareness and drive business growth.


Her experience is in driving results for B2B organisations, specialising in SEO marketing, social media management, design and content creation. Rhianna liaises closely with her Vitro colleagues to deliver valuable client insights, and support business delvelopment. 


Sarah Halling, Executive Officer

Sarah Halling

Executive Officer

Sarah joined Vitro from the regulatory healthcare and auditing sector where accountability and attention to detail were key measures.  


Working as an Executive Personal Assistant in a fast-paced and ever-changing environment has equipped Sarah with essential skills for organising and prioritising.  Time management and effective communication with Executives and stakeholders was essential for managing complex diaries and appointments and collating agendas, briefings and presentations.   


Sarah’s role involves supporting the CEO and Team with the day to day running of Vitro and with specific actions and projects. 

Mark Saxby, Technical Solutions Architect

Mark Saxby

Technical Solutions Architect

As Vitro's very own Technical Solutions Architect, Mark helps clients and their partners to formulate technical solutions to help meet their business needs. He provides guidance on talent management data to mobile applications and intranets, how best to integrate talent management systems via API’s/data extracts to data warehouses for insights gathering, and integrations with other third-party applications such as payroll.


Mark  also provides support for third party vendors working with clients who need to better understand the data and technical capabilities of their talent management systems.

Brian Jones, Senior Project Manager

Brian Jones

Senior Project Manager

As our Senior Project Manager, Brian works with our clients on a daily basis, from vendor selection, implementations and managed services, through short term projects and multi-year programmes.


Brian has a background in senior business analysis, software delivery, retail and supply chain, each helping him to evaluate, identify and create action-based task to ensure a successful delivery. 


Brian has worked with Mike since 2007. He is application and technology agnostic; with key focus on project delivery. This allows Brian to deliver Vitro services across Cornerstone, Content Management Systems (CMS) and new implementations and upgrades of Unit4 ERP projects.

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Contact us

Lygon House 

50 London Road 




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