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We believe in stories that speak, connect and illuminate, transforming social and engineering feats into human-centric storytelling.

Reaktiv is a strategic communications company specialising in expert and impact communication. We help organisations turn complex knowledge, meaningful work and proven results into clear and engaging content.

Our work brings together strategic insight, subject-matter expertise and visual storytelling. We find the perspectives that make complex topics relevant and create communication that strengthens trust, engages the right audiences and supports business goals.

With roots in sustainability communication and experience across a range of industries, we understand how to communicate topics that require both clarity and credibility. We make organisations’ expertise, actions and wider impact easier to see, understand and value.

Featured Cases

  • Fortum PPA

    In collaboration with sakea we explored where real climate impact happens. As a leading Nordic low-carbon power supplier, Fortum powers heavy industries with fossil-free energy, enabling companies like Eesti Energia, Stegra, and Vargön Alloys to meet ambitious climate goals.

    Stegra, as a forerunner in green steel, is helping reshape an industry responsible for 7–9% of global CO₂ emissions. Valtteri & Co together with team Fortum scripted, produced, and executed a powerful, commercially driven video series—Showcasing Fortum's role in supporting industrial decarbonisation.

  • Arusha, Listen!

    Deaf children in Tanzania face severe marginalization, often denied education and a future. Through documentaries and video series, we made Arusha, Kuule! visible, amplifying their struggles and the life-changing work of Finnish Special Education Teachers in Africa. Our expertise helped bring their message to the Western world, making their work viable and impactful. Recognized as the most impactful NGO of 2024, Ego raised €500K—empowered by our storytelling.

  • Foilone

    Foilone is redefining emission-free boating. And we’re the ones amplifying their vision.

    As their marketing and content partner, we craft the narrative behind their groundbreaking technology, building a globally competitive brand. From brand films to a full-scale marketing toolkit, we help position Foilone’s innovation to transform the future of boating.

  • Transmeri Group

    Transmeri Group wanted to highlight the achievements of its 2020–2025 sustainability program as well as its future goals. We produced a package that included one long video and several short videos, each focusing on a specific theme of the sustainability program.

    The videos showcase the company’s sustainability journey, the concrete results achieved so far, and the direction of future development. The content was designed to work in both internal and external communications, strengthening Transmeri’s position as a responsible company.

  • Finnfoam

    Energy Performance of Buildings Directive

    Energy efficiency in buildings plays a key role in reducing emissions and building a sustainable future. The EPBD directive should guide us toward zero-emission buildings, and effective insulation is essential in achieving this goal.

    We produced a reportage for Finnfoam in which we explored how the Energy Performance of Buildings Directive will affect construction, and how it will steer the entire sector toward a more low-emission future.

  • Vaasan

    Vaasan wanted to make its sustainability report feel closer to everyday life and real people. Alongside the traditional report, we created a series of three videos where their sustainability work is shown through the real stories of Vaasan employees.

    Each video focuses on one theme: wellbeing, the environment, and people. They explain practical actions, real impact, and ongoing progress in a clear and simple way. The videos were designed to work both internally and externally, helping build transparency and making sustainability feel more relatable.

Our Services

Turning Expertise and Impact into Commercial Value.

Content built around your organisation’s expertise. We turn specialist knowledge, products, services and solutions into clear and engaging stories that strengthen your expert profile and help audiences understand their wider relevance.

Content that makes sustainability efforts, measurable impact and meaningful progress visible and understandable. Built on credible evidence such as sustainability reporting, climate action or wider societal initiatives, these stories communicate not only what has been achieved, but why it matters.

Journalistic content exploring the current topics, developments and wider phenomena shaping your industry. By combining expert perspectives, real-world environments and strong visual storytelling, we create stories that inform audiences, open new perspectives and move important conversations forward.

About

Our team
  • As an environmental economist with a holistic understanding of how to commercialize sustainability initiatives, Onni brings valuable expertise in helping businesses adapt to ever-evolving regulated markets. With a background in consulting, Onni has broad experience in helping companies develop sustainable business practices and seize the opportunities created by the transition to a low-carbon economy. Leveraging this experience, Onni can create compelling narratives from sustainability efforts that resonate with all stakeholders.

    M.Sc. in Environmental Economics
    Email LinkedIn
    Onni Hytti
    Co-Founder, CEO
  • The mind behind the comms impact. With experience crafting thousands of stories through video, Valtteri brings a broad understanding of nature, climate, and heavy industries. His expertise is turning real actions into tangible messages that resonate with stakeholders, investors, and consumers alike.

    M.Sc. in Forest Economics
    Email LinkedIn
    Valtteri Soilampi
    Co-Founder, Creative Lead
  • Jarno approaches the green transition through ecological economics and systems-level thinking to build meaningful impact. With roots in sustainability consulting, he brings sharp expertise in strategy work, carbon accounting, and reporting—especially within circular economy and climate agency—helping businesses navigate and lead meaningful change. He has worked across diverse projects, from crafting sustainability strategies for companies and the public sector to delivering regulation-aligned carbon accounting.

    M.Sc. in Environmental Economics
    Email LinkedIn
    Jarno Eriksson
    Co-Founder, New Customers

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