Who we are

Meet the team

At Openframe, we are a team of diverse professionals working towards one common goal: to make sustainability in construction accessible and simple.

We are all super dedicated and the team ranges from creative architects and communicators to innovative engineers and system developers.

Jesper Ring

CEO & Co-Founder

Jesper is Openframe’s CEO and as a dedicated visionary in sustainability in construction, it is Jesper’s ambition to make sustainability concrete and accessible to everyone. Jesper is a civil engineer and has many years of experience in sustainability from his roles as a client advisor and project manager. Jesper helped develop the idea and vision for Openframe.

Andrés Angulo


Andrés is Openframe’s CTO and a seasoned software engineer with over two decades of experience designing, developing and maintaining complex software applications. He has a wide range of skills in technology, platforms and programming languages. Andrés has held many different roles, from CTO and co-founder of startups to senior/lead software engineer in various industries.

Marianne Gulløv

Communications & Marketing Manager

As Communications & Marketing Manager, Marianne is passionate about communicating Openframe’s unique qualities and values. With her many years of experience in communications, marketing, PR and CSR, she confidently manages the external communication and branding of Openframe


Katrine Lehmann

Account Executive

Katrine’s strong customer orientation, commercial mindset and more than 14 years of experience in selling complex solutions to companies make her highly competent in the role of Account Executive. Her unique ability to create deep and lasting customer relationships, combined with a solution-oriented and structured approach, contributes to Katrine’s positive results and makes her highly valued by customers.


Alexander Siegfried

Product Specialist

As a Product Specialist at Openframe, Alexander acts as the link between the users and the product’s design. With his background in techno-anthropology from Aalborg University, he employs participatory design methods to enhance user engagement. At Openframe, he leverages his broad experience and deep understanding of ESG to introduce innovative solutions to the users of our platform.


Allan Larsen

Product Owner

Allan Larsen is a Product Owner at Openframe with a Master’s degree in Digital Design from IT University. His broad experience in the SaaS industry and as an entrepreneur has sharpened his skills in developing user-friendly, scalable digital solutions. Allan is passionate about creating harmony between technology, design, and user interaction, always prioritizing customer needs. As the advocate for users and through his close collaboration with the development team, he is a pivotal figure in the design of Openframe platforms.


Emil Bonne Kristiansen

Full-Stack Developer

Emil is our Full-Stack Developer and Software Engineer from DTU – Technical University of Denmark, with extensive expertise in modern web development tools such as TypeScript, React, and Next.js. He combines a passion for cutting-edge technologies and sustainable tech solutions with a commitment to creating efficient, performance-driven applications for Openframe and our users.

Daniel Starck Lorenzen

Student assistant

Daniel is the Product Development and Design department’s talented and creative student assistant. His main areas of work include testing functionality and new features, performing technical analysis and managing data. In addition to this, he also contributes his graphic expertise to our videos and user guides and helps with content and setup in WordPress.

Frederik Petersen

Business Developer & Co-Founder

With many years of experience as an innovation and strategy consultant, Frederik is dedicated to optimizing the radically changed business conditions that digital developments have brought to the construction industry.