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Asa Magnusson

I wouldn’t have known about Knack as an option if it wasn’t for Carl, and I was absolutely amazed at how quickly he was able to construct exactly what we needed – and not a single Excel formula in sight! We’re now looking forward to rolling out this directory across the entire organisation.

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Kris Mesner

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I chose to work with Carl Holmes, and I made the right choice. Carl lives in England; I live in the U.S., but that wasn’t a problem. Our deliberations on the project were effortless. We collaborated on what was needed and Carl built the app in stages, showing us videos of his progress and letting us test drive it throughout the process


Travis Spruit

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We contacted Carl after watching his superb YouTube videos and got him involved in our Knack project and was blown away by his knowledge and skill in the field. He was able to quickly understand the requirements of the project and provide effective solutions that helped us to go live with the database. In addition to his technical expertise, Carl is also a great communicator and was a pleasure to work with. I would highly recommend him for any project involving Knack. Honestly he has been incredible we really appreciate his help.

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Michelle Morris

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Carl is an excellent communicator. Always prompt with a very pleasant demeanour. He is always willing to assist and constantly updates his Knack knowledge so he can provide updates to our business critical Knack applications. This ensures they are all working efficiently. Both Knack and Carl are vital service. We wouldn't want to go back to pre-Knack days.

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Jason Oliver

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Carl has worked on building Databases for us for since 2016. He introduced us to Knack which has made a massive positive impact on our business. Carl has a vast knowledge of building within Knack and can quickly understand our needs prior to building the solution. We have introduced him to several other business' and would not hesitate to recommend him to others.

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Sofie Schenkel

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I was looking for someone who could support and mentor me without building the app for me. I wanted to learn it myself. I found Carl by submitting a request to the Knack Experts Network and it was just the perfect fit from the start! Carl was a real gamechanger for this project and I feel very lucky that I have met him. He is very committed and openly shares his deep knowledge of Knack


Ambrose Longy

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We came to Carl with a prickly pear because a lot of the scoping had already been done upstream and a good part of the app's schema and interface building had been started. With crystal clear explanations, detailed documentation and proper time spent on walkthroughs in the Knack builder and in our app, knowledge transfer is not just the handover of a finished job; it comes with a ton of tips and tricks on how Knack works so we also gain in our own autonomy.


Karie Shield

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The joy of Knack is being able to have all your data in one place, with bespoke views to access it easily and accurately in a way that makes sense for your business. The joy of working with Carl is that he listens, asks questions and uses his Knack knowledge to create what you and your business needs.

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François Leprêtre

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We approached Carl with a vague concept of what we wanted. He was able to quickly put things together and deliver a working beta within days. We were so impressed with the quality of his work and the look and feel of the application – A huge thanks to him and a big recommendation for anyone looking for this service.


Simon Gaunt

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I worked with Carl for over a year and during that time, he has taken an idea floating around my mind and transformed it into a fully functioning supplier database containing 1000s of pieces of key information on each of our contractors. 
The application constantly "grows arms and legs" with features added or removed as required and new ideas are constantly being developed. To such an extent that our simple database is now a fully functioning business tool utilised across our entire business.

Carl has the skills, knowledge, and a huge amount of patience. Without that we couldn’t have created the tool we have. 

If you have any need to have a system that automates your processes, streamlines your admin and makes you and your team ultimately more efficient than give Carl a call, he will be able to build you a database on Knack that will save you time and resource


Sean Stapleton


It’s been an honor and privilege to work with Carl. We were new to the Knack application and were looking for a Knack expert who could help us to understand the possibilities of Knack and then execute on our vision.

Carl is gifted at Knack design, but even more gifted at communication with folks at all levels of IT sophistication. We needed someone who could provide our team with a realistic view of what we could use Knack to do, and someone who could manage our project in a thorough and timely manner. Carl over delivered on all accounts.

Based on Carl’s guidance and support, we have an outstanding application that is comprehensive, intuitive and scalable.

It is an honor to provide my unequivocal recommendation of Carl. Whether you or your organization are just starting on your Knack application development journey or are looking to refine your current application – Carl is an outstanding resource and a person of the highest integrity. Thank you Carl. Your work was the foundation for what we are going to rely on as a company, hopefully for many years. We appreciate all you did for us. I wish you nothing but the best.


Steve Inglis


I reached out to Carl after enjoying his YouTube videos and having reached a brick wall with the creation of my new Knack Builder App. He kindly gave me some time to look at my App and took the time to understand what I was trying to achieve and expertly found a way to solve the issues I was facing. I am relatively confident in creating Knack Apps that function for my business but Carl's expertise was invaluable in creating the product that I need to help my business succeed.

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Chris Belcher

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Carl has been a valuable partner in helping us transition from another database app to Knack. As we are providing applications for blue chip companies the design and implementation has to be robust. Carl’s knowledge and vast experience helped us achieve our goal, in less time that we thought was possible. His attention to detail is excellent, and he is often several steps ahead in any design rational, anticipating what is needed, and then implementing the best scenario to suit the requirements of the project. Moreover, Carl explained clearly why he was doing things the way he does, which gave us a deeper understanding of what our app was capable of. I have no hesitation in recommending Carl, and we will certainly be using his excellent services in the future.

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Matthew Larkin


I discovered Carl's outstanding YouTube videos while working on launching our Knack project. His videos provided exceptional education and information in a clear and easy-to-follow format. Impressed by his expertise, I reached out directly to Carl for assistance. His guidance has been instrumental in transforming our Knack app into a polished product, addressing current needs and unlocking new possibilities for the future. Carl's forward-thinking approach and deep understanding of the software's capabilities allowed him to propose innovative solutions that were not initially considered. This proactive mindset has resulted in a software solution that not only meets requirements but also establishes a foundation for future growth and adaptability.

Knack Forum

A sample of some of the positive feedback from the Knack forum


International Sunday Times No.1 best-selling author. Helped hundreds of individuals to write, publish and sell their books. Described as 'One of the top 3 professional speakers in the world'. Works with individuals and organisations who have a desire to be brilliant.

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