About Constantia

Investment philosophy

What we stand for

Constantia is a family-owned investment company founded by Christian H. Thommessen in 1986.

From the outset, Constantia has been guided by a simple belief: attractive financial returns and positive societal impact can, and should, go hand in hand.

Rooted in a family heritage of social entrepreneurship and human development, we have sought to support people and build companies that create value by addressing some of the world's pressing challenges — including climate and social issues. Today, investments of this kind are commonly referred to as impact investments.

At the same time, Christian’s background from technology companies has always drawn us to major technological paradigm shifts and the opportunities they create. Throughout Constantia's history, this has included the emergence of the internet, the mobile revolution, the development of non-fossil energy industries such as solar, and, more recently, the rapid advances in artificial intelligence.

Building on our experience and realized gains from venture and growth investments, Constantia has for the past 20 years also engaged in real estate development, together with experienced industrial partners. Our activities have included residential development as well as the development of office space for, among others, several Norwegian government entities.

We also manage a diversified portfolio of stock funds and private equity funds, providing exposure to a broader range of companies, sectors and investment opportunities.

Our commitment to society extends beyond investments. True to our family heritage, we have also engaged in social entrepreneurship, co-founding, investing in, and contributing our time and experience to NGOs and foundations with a clear societal purpose.

We believe that ownership means more than providing capital. We seek to actively contribute to the development of the companies and organisations we engage with. Christian has served as Chair, Board Member and CEO of investee companies, as well as a coach and mentor to executive management teams, including CEOs. He has taken a similarly active role in foundation and social entrepreneurship initiatives. Nora and Annette have engaged in similar activities throughout their careers.

Entering its fifth decennium Constantia is executing a gradual generational transition. Nora and Annette have actively participated in our Board for the past 11 years. As our new CEO Nora will, building on her investment as well as industrial experience, over time build her own new portfolio of investments supported by the Board.

Why Constantia

The name Constantia is Latin, derived from constans, meaning steadfast, unwavering and enduring. Constantia expresses qualities such as steadfastness, perseverance, conviction and constancy.

For us, the name reflects a fundamental belief in long-term ownership. We seek to build lasting value through patience, conviction and active engagement rather than being driven by short-term considerations.

Constantia is therefore more than the name of an investment company. It expresses an approach to ownership:

Think long term. Act with conviction. Remain committed to creating
lasting value.

Our investment history reflects this philosophy. We have remained invested in a number of successful companies for 10, 15 years or more, supporting them through different stages of their development and, in many cases, through significant changes in their markets and industries.

The team

Who we are

Portrait of Nora Løke Thommessen

Nora Løke Thommessen

CEO and Board Member

Nora Løke Thommessen has been a board member of Constantia since 2015. In September 2026 she entered the role as CEO, and will be responsible for building a new portfolio of investments.

She has experience in leadership, business strategy, sustainability and marketing from roles in publicly listed companies, including management responsibility for teams and business areas.

She has been an active investor through WIN Ventures, with experience evaluating and investing in early-stage companies and private market opportunities. She was also part of the founding team of Pinecone Group, a Stockholm-based venture studio.

Nora holds a Bachelor in Economics, Management and Finance from Bocconi University and a Master of Science in Business and Global Development from Copenhagen Business School.

Nora Løke Thommessen on LinkedIn (opens in a new tab)
Portrait of Christian H. Thommessen

Christian H. Thommessen

Founder & Chair

Christian H. Thommessen founded Constantia AS in 1986 and is presently the company’s Chair.

Until the summer of 2026, he was solely responsible for Constantia’s activities and investments.

He brings extensive investment experience, alongside a long career as President & CEO and senior executive in Norway and internationally, including leadership roles at Norsk Hydro, IBM Europe, IBM Nordics & Norway, and Glamox ASA.

Christian has also held numerous board and chairmanship positions across companies in which Constantia has invested, as well as listed, large private and public organizations.

Christian holds a MSc in Economics & Business Administration from NHH (Norwegian School of Economics).

Christian H. Thommessen on LinkedIn (opens in a new tab)
Portrait of Annette Thommessen

Annette Thommessen

Board Member

Annette Thommessen has been a board member of Constantia since 2015.

She has more than a decade of experience in leadership, business development and commercial transformation, with a particular focus on adapting businesses to changing markets and customer needs.

She has held senior executive roles across several industries, with responsibility spanning strategy, sales, marketing, innovation and organizational change.

Annette has a Master of Science in Leadership and Organisational Psychology from BI Norwegian Business School and is a certified mental coach.

Annette Thommessen on LinkedIn (opens in a new tab)

Get in touch

What we primarily look for

  • Norwegian heritage / head office
  • Tech or innovation driven,
    preferably software
  • Mission alignment
    • Constantia skills & experience
    • Impact orientation preferably
  • Global scaleability
  • Seed → Series A range
  • Proven product / market fit
  • Post-revenue or (at minimum)
    early customer validation
  • Visible understanding of
    competetive landscape
  • Realistic route to profitability

A few things to note

Founders

We primarily invest in Norwegian companies. If you are a founder and would like us to explore a potential investment, please include a brief pitch deck with your initial email. This helps us to understand your business and consider how we might be able to add value.

Like-minded people

We actively pursue conversations with people across the investment and entrepreneurial ecosystem who share our long-term perspective.

Other inquiries

For all other inquiries, feel free to reach out using the address above.