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Tell us your challenge and we'll take it from there. Whether you're exploring a new project or just want a sparring partner, drop us a note.

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Brighten Oy
Pohjoisranta 14
00170 Helsinki

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The team

We're senior strategists who dive in, move fast, and stay curious.

Mona Berg

Mona Berg

Co-founder, Senior Advisor, Fractional CMO

Mona has +20 years of experience in marketing and communications, with a particular focus on helping deep tech and B2B companies make complex expertise easier to understand, trust and buy.

She works with founders and leadership teams on positioning, go-to-market, demand generation and thought leadership, often in Fractional marketing roles that connect business strategy with marketing and activation.

Prior to co-founding Brighten, Mona led the marketing of digital technologies at VTT, one of Europe’s leading research institutions. Her earlier consulting and in-house roles include advising major Nordic B2B brands at Marketing Clinic and working with deep tech startups, scaleups and industry leaders.

Sanna Määttänen

Sanna Määttänen

Co-founder, Senior Advisor

Sanna is a strategic marketing and communications leader with 20 years of experience working with hundreds of B2B companies and brands.

She works with founders, leadership and marketing teams across a broad range of marketing and communications challenges, from strategic sparring to insight and capability building. Her strength lies in bringing together different perspectives, identifying what matters most and turning insights and ideas into clear strategies and actions.

Prior to co-founding Brighten, Sanna held leadership and partner roles at Marketing Clinic and Okimo Clinic. She later worked as Communications Manager at Mehiläinen, where she led social media and employer brand activation.

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