Jonas Software UK acquires, strengthens, supports, and grows industry-specific software companies

At a Glance

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Why Jonas Software?

We Are Family

Jonas is more than just a business, we take care of our brands, together we learn from each other's successes and failures, and have fun! Learn more here.


We motivate and empower our employees to grow through professional development and training opportunities, with a promotion from within mentality. Read more here.


With our parent company CSI, we have the backing, creditability, security, and reliability to invest and maintain our acquisitions with our buy and hold forever ethos. Find out more..


Having over 95 businesses worldwide, not only can you increase your connections and clients but also share in our ever-evolving best practices. View our businesses here.

Best Practice

We have the expertise and best practices to help nurture and grow your company, sharing our best practice playbook continually learning new things from each acquisition. Learn our approach here.

Our Background

We have a stronghold in the British Isles and ROI with over 30 companies joining our family since 2010, which is ever-expanding, growing our presence both in the UK & Europe. See our history timeline here.

Growing Great Companies Together

We believe that acquiring businesses is about more than just buying the company. It is about investing in the people and customers, doing what it takes to help manage and grow a business for life. To accomplish this, we operate with a decentralised model pushing decision making down to the front lines where the people who know the industry and products are best placed to make decisions for their clients. It is important to us that we honour each business's unique legacy, maintaining their individual brand, culture, products, loyal customers, and most importantly, employees. With our buy and hold forever strategy (yes - we never sell a business once acquired), we have grown to operate over 95 companies in over 25 vertical markets around the globe.

Planting and nurturing those all important seeds.
Together reaching higher heights

Enabling Each Business to Succeed

We promote corporate-wide sharing of best practices and our playbook supports managers in achieving accelerated growth and scalability, with sustainable returns inside their business. We host functional summits, quarterly strategy meetings, and annual academies to exchange experiences and proven practices with peers across other Jonas and CSI companies.

At Jonas Software, we have long realised that our greatest asset is our employee base. As such we strive to provide our teams with fantastic working environments and an enriching career, which we know will translate into world-class service to our valued clients. This allows Jonas Software to maintain and extend our lead as the premier software and services provider in each of our markets, attracting and retaining great talent.

Great People Make Great Companies

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