Testimonials

At DEV-XL we’re committed to delivering exceptional service and tailored solutions that meet the unique needs of every client. But don’t just take our word for it - read what our clients have to say about their experiences working with us. These testimonials reflect the quality, reliability, and results that define our approach to every project.

"Phil Deverick was a long-standing and highly valued member of our team for 20 years. During that time, he built an outstanding reputation for his expertise in Excel and his ability to deliver spreadsheet solutions that made a real difference to the way we operated.

Phil’s work went far beyond basic spreadsheets. He developed complex, scalable models using advanced Excel functions including formulas, pivot tables, dynamic named ranges, power query, data validation, and VBA automation. Some of his most significant contributions included the creation of the official price book for a global manufacturer following their acquisition of our company, and a detailed manufacturer price comparison workbook that brought clarity and control to complex pricing decisions. These business-critical tools automated pricing structures, embedded margin controls, and ensured data consistency - all within secure, user-friendly interfaces.

Phil consistently delivered his work in a timely and efficient manner. He was highly organised, responsive, and able to prioritise effectively - even under tight deadlines or shifting business demands. His solutions were not only technically sound but also carefully thought through, ensuring they were easy to use, maintain, and scale. This reliability made him a go-to person for everything from quick-turnaround tasks to large, high-stakes projects.

Phil had a unique ability to understand commercial requirements and translate them into Excel-driven tools that added immediate value. His spreadsheets were not just technically impressive - they solved real business problems and improved efficiency across multiple areas of the business.

Although his experience with us was in the HVAC sector, Phil’s skillset is highly transferable. Any business needing advanced Excel solutions - whether for small day-to-day tasks or large, strategic projects - would benefit greatly from working with him. I unreservedly recommend Phil and DEV-XL"

Polly McConachie (Managing Director) - Formerly of AMP Air Conditioning (now Panasonic Heating & Ventilation Air Conditioning UK) 

"Dev-XL demonstrated exceptional expertise in Excel, effortlessly navigating intricate data sets and complex calculations to deliver precise and actionable insights. Their mastery of advanced Excel functions, pivot tables, and data visualisation tools enabled us to uncover hidden trends and optimize the techno-economic models we were after. What impressed us most was their ability to distil complex data into clear, concise, and actionable recommendations that drove tangible solution outcomes.

Their work ethic is equally impressive, consistently meeting deadlines and exceeding expectations. Dev-XL are strategic thinkers who proactively identifies opportunities for improvement and implements innovative solutions. Their dedication to delivering high-quality results and their passion for data analysis make them an invaluable asset to any team. I wholeheartedly recommend Dev-XL for any Excel-related tasks, data analysis projects, or business intelligence initiatives.."

Michael Moggeridge - Managing Director - Qvantum Solution Designs

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Ian Carroll - Deputy Chief Executive Officer - Fujitsu General Air Conditioning UK Ltd

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