Meet the team

Learn about some of the people you will be working with if you choose Contigo.

Simon Wheeler

Chief Executive Officer – Energy One (Europe)

 LinkedIn  +44 (0)845 838 6848

As European CEO, Simon is responsible for overseeing operations at Contigo Software Limited in the UK, eZ-nergy in France and EGSSIS in Belgium. Combined, the three Business Units form the European division of the Energy One Group. Simon has in-depth knowledge and experience of the energy, software and technology industries and has been part of the Energy One Group for over 3 years.

I help Contigo, eZ-nergy and EGSSIS to grow their client bases and their reputations as reliable, independent suppliers of energy trading software and services. Being part of the Energy One Group strengthens each company’s position as a prominent vendor thanks to the combination of experience and opportunities to collaborate, develop and deliver the very best systems and services to our clients. The future is exciting for Energy One as we strengthen an already impressive portfolio and cement our position as a global software and service provider.


Katie Claridge

Chief Operations Officer

 LinkedIn  +44 (0)845 838 6848

Katie heads Finance, Legal and HR and has been responsible for establishing the business’s financial reporting processes and financial integration with its parent company. Katie has delivered a number of strategic projects and is accountable for financial business planning to support strategic decision making and aid the company’s significant growth across Europe. A qualified accountant, prior to joining Contigo, Katie was responsible for designing and implementing simplified business processes for a global manufacturing company.

It has been exciting to witness Contigo’s growth in Europe and the expansion of our customer base. Having the benefit of resources and industry expertise from our parent company, whilst continuing to operate as a flexible and dynamic independent business unit, provides an advantageous combination to service our customers.


Sunny Tiwana

Chief Executive Officer – Energy One UK (Contigo Software Limited)

 LinkedIn  +44 (0)845 838 6848

Sunny has been part of the Contigo/Energy One team for over 10 years, working across the business largely focused on the technical delivery for our products and clients. Customer-focus is key and Sunny takes great pride in supporting our clients’ journeys with our products in a dynamic market. Prior to becoming CEO, Sunny was Chief Information Officer, where the key responsibilities were to steer the organisation’s software delivery across the technology team from development lifecycles to end client support including our hosting management services.

As a company, we pride ourselves on building exceptional relationships and understanding on how our systems are used by the industry and our client base. We understand that customers demand high quality ETRM products, providing accurate data that informs and supports their business. This is especially important with a fast changing market and the more recent volatility periods. As part of the Energy One Group, this is an exciting time to offer the industry a strong product portfolio offering that helps us work in a collaborative manner and be recognised as the market leader in ETRM software services.


Karen Sanders

Chief Customer Officer

 LinkedIn  +44 (0)845 838 6848

Karen heads teams responsible for customer-related activities through analysing clients’ requirements, supplying and implementing products to help them manage their businesses more effectively and easily. A utilities sector Business Analyst before joining Contigo, her role also includes consultancy, sales, marketing and account management functions. She supports the future of our products by overseeing the development of core and bespoke functionalities/capabilities, as well as ensuring implementations run smoothly.

For me, the most rewarding aspect of my work is being able to build great relationships with clients. These come from understanding their business needs and then being able to turn this ‘brief’ into a solution that makes a real difference to the way they manage their business.


Andy Talliss

Programme Manager

 LinkedIn  +44 (0)845 838 6848

Andy heads up the Programme Delivery team, which is the division of Contigo that coordinates the scheduling of new product and functionality requirements for our customers. Andy leads the project management department and is responsible for overseeing the process of welcoming and acquainting new clients to the business. He also manages the delivery of additional product functionality to existing clients. Having worked at Contigo for over four years, Andy has established collaborative working practices to ensure we deliver the best possible service and products to our customers.

I really like liaising with our customers to deliver smart solutions that will meet their business needs, both now and in the future. The process of onboarding a new client is well-structured and comprehensive. We work collaboratively throughout the entire lifecycle to effectively deliver our software solutions, from inception to full implementation and use.


Martin Thomas

Product Manager

 LinkedIn  +44 (0)845 838 6848

As Product Manager, Martin is responsible for driving the strategic direction of Contigo’s business and products in alignment with the evolving expectations of our clients. Martin brings to Contigo over 20 years of experience of retail and wholesale operations in UK and European energy markets, alongside extensive knowledge of the systems and technologies used to support these operations. He joined Contigo’s product management team in 2021, during a time of sustained growth. He brings a wealth of industry insights and experience that will be invaluable as the company continues to focus on helping its clients manage their energy portfolio with innovative and accessible software.

I really enjoy working with the talented team here to maximise the value for our customers from the existing product set and also to design and build the next generation of ETRM applications to meet all future challenges in our rapidly changing market. My focus is on developing our product capabilities and roadmap to ensure we are delivering smart ETRM solutions that accurately reflect client and industry needs.


Matt Spence

Head of Service Delivery

 LinkedIn  +44 (0)845 838 6848

Matt manages the Service Delivery Function within Contigo which encompasses the IT Operations Team and Application Support Team in the UK. He is responsible for managing Contigo’s SaaS Platform (CMS) and all UK Internal IT Infrastructure. Matt is also responsible for the Application Support team in the UK which support customers post go live with any queries or problems they might have with the applications whether deployed on their own systems or hosted on Contigo’s SaaS platform. As part of this role Matt designed and implemented the SaaS Platform (CMS) and continues to actively work on improvements on the platform.

I come from a technical background so really enjoy the technical aspects of my role, from solution design through to solving technical problems. I have a real passion for the industry, the products we sell, and most importantly, our customers! I enjoy working with our customers and ensuring we provide excellent products, platforms and services for clients to use.


James Ducker

Project Manager

 LinkedIn  +44 (0)845 838 6848

James works within Contigo’s Project Delivery team managing the delivery of new products and services to new and existing energy clients. As a project manager, he responds to changes within our customers’ businesses and offers tailored solutions to meet their evolving needs. James is responsible for the complete implementation lifecycle for Contigo clients, from conception and design, through to analysis, training, data migration, testing and completion. With over 14 years of project management experience, and having worked for Contigo since 2016, James is highly motivated to ensure that customers are happy with the products, modules and functionality Contigo provides.

There are many things I enjoy about my role, from meeting new clients and understanding their businesses within the industry, to providing effective and valuable solutions that will handle their requirements. I get great satisfaction from achieving the best possible outcomes for our customers when projects go live.

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