Services

Clients

Trades

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Let's Get Started

Services

Clients

Trades

Resources

Let's Get Started

Meet some of our creative team

Meet the visionary executive team that made this application a reality.

Colin Calder

Co-founder and CEO
colin.calder@digitalbuildings.co.uk
Proven entrepreneur with 40 years of experience in technology. Held senior executive positions in technology before becoming a serial entrepreneur.
Proven entrepreneur with 40 years of experience in technology. Held senior executive positions in technology before becoming a serial entrepreneur.

Experience

2021

Setup Digital Buildings Limited to address an unfulfilled need in a rapidly expanding sector of the carbon abatement market.

2008

Established PassivSystems a multi-award winning company. Developed world’s #1 smart thermostat.

2000

Sold Paragon to Phone.com for landmark price

1999

Won coveted EY Entrepreneur of the Year

1996

Established Paragon Software and developed the #1 data synchronisation platform for the mobile phone industry.

Katharine Harrison

Co-founder and VP Platform Services
katharine.harrison@digitalbuildings.co.uk
Katharine has seven years of managerial experience in the low carbon technology space and brings 12 years of customer service experience, having previously worked in customer-facing roles for Morgan Stanley and Credit Suisse.
Katharine has seven years of managerial experience in the low carbon technology space and brings 12 years of customer service experience, having previously worked in customer-facing roles for Morgan Stanley and Credit Suisse.

Experience

During her time at PassivSystems she was instrumental in expanding support capabilities, effecting process improvements and driving operational efficiency and governance. She has a wealth of hands-on experience and she brings a disciplined and methodical approach to the way new propositions and services are designed.

Upperwood, Pottery Lane, Inkpen, RG17 9QA

Company Number: 13605846

©2024 Digital Buildings Limited.

Retrogreen is a wholly owned subsidiary company of Digital Buildings Limited

Upperwood, Pottery Lane, Inkpen, RG17 9QA

Company Number: 13605846

©2024 Digital Buildings Limited.

Retrogreen is a wholly owned subsidiary company of Digital Buildings Limited

Upperwood, Pottery Lane, Inkpen, RG17 9QA

Company Number: 13605846

©2024 Digital Buildings Limited.

Retrogreen is a wholly owned subsidiary company of Digital Buildings Limited