Jens Karstoft

Angel investor, Entrepreneur, Board Member

📍 Frederiksberg, Capital Region, Denmark🔄 Updated September 2026💼 7 investments📅 11 years investing🗓 Last invested Jan 2024𝕏 @upgrade_to_unlock
VC🌍 Denmark
7
Total investments
2
Early stage
0
Mid stage
4
Late stage
11y
Years active

Portfolio

6 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Co-owner & Board Member
Jan 2024
Founded in 2015, Harba is an innovation-driven Danish company digitalising and connecting the world’s marinas and boaters. The company has developed an award-winning mobile app for boaters – HarbaApp, a simple to use marina management software for harbour masters – HarbaMaster, as well as various IoT hardware solutions to support both parties. Harba has a mission to make boating and running marinas a breeze.
Investor & Board Member
Sep 2023
At Develop Diverse, we strive to help companies build diverse and inclusive workplaces. We ensure they attract diverse talent and lay the foundation for a culture of inclusion and belonging. Our writing software supports bias-free writing by recognizing biased words and proposing inclusive alternatives.
Investor & board member
Sep 2022
Poster & Frame Art Group, also operating as Poster & Frame Inc., is a Scandinavian-based leader in the art and print industry, founded in 2016. Our mission is to connect high-quality art with the world through innovative solutions and sustainable practices. Under our umbrella, we house several distinctive brands, each with its own unique identity and contribution to the art world. Curated Copenhagen offers carefully selected art collections, blending contemporary and timeless designs. By collaborating with emerging artists, it provides exclusive pieces for those seeking sophistication and style in their homes and spaces. Poster & Frame is a global platform for art enthusiasts and collectors, seamlessly bridging B2B and B2C markets. We deliver original art and custom framing solutions, enabling anyone to bring creativity and inspiration into their lives. Posterland, Northern Europe’s largest poster business for over 45 years, boasts an unparalleled selection of over 3 million prints, ranging from vintage classics to modern designs. With new ownership, it steps into a promising future while honoring its rich heritage. Permild & Rosengreen stands as a symbol of artistry and tradition, renowned for collaborations with artists and exclusive licensed collections. The brand seamlessly merges historical depth with a modern edge, offering prints for every aesthetic. Citatplakat, a celebrated Danish poster brand from “Løvens Hule” (Shark Tank), connects with a broad audience through iconic quotes and a distinct design style, making it a favorite across demographics. Dialægt, also featured on “Løvens Hule,” celebrates local dialects with a patented design. Now expanding nationwide, it captures hearts and conversations with its unique charm. Together, we champion the values of real art, sustainable innovation, and strong partnerships, supporting artists and bringing their visions to life globally.
Board Member
Aug 2017
We are a software company specialized in B2B Sales Enablement. Our platform, Napp, supports all steps of the sales process from pitching to sealing the deal and turns client meetings into customers. Napp Sales Enablement empower sellers to support buyer’s journey at every stage of the process. Napp keeps marketing, excellence and sales aligned to meet increasing demands. ENABLE SALES Provide content, tools and information for sales to effectively support any buyer’s journey. ENGAGE BUYERS Present, address buyer’s needs, share the most relevant content with buyers and track their engagement. OPTIMIZE PERFORMANCE Analyze behavior, develop compelling content, drive alignment and improve win rates.
Board Member & Investor
Apr 2017
Your work. Your resources. Your finances. All connected. The ultimate upgrade to delivering projects on time and on budget. Forecast centralizes project management, resourcing, and financial data into one easy-to-use, native AI-powered platform. Integrating seamlessly with your existing technology stack, Forecast optimizes real-time planning, predictive analysis, and financial returns from your delivery teams and projects.
Advisory Board Member & Investor
Sep 2015
Roccamore makes comfortable high heels with insoles that shape your foot to walk as anatomically correct as possible. Scientifically validated and handmade in Italy, by some of the best shoemakers in the world, roccamore is on a mission of inspiring women to stand strong. #RoccamoreRebel
Experience · 15 entries
All (15)
Investments (6)
Founder (5)
Board (4)
2024
Co-owner & Board Member
Jan 2024
Founded in 2015, Harba is an innovation-driven Danish company digitalising and connecting the world’s marinas and boaters. The company has developed an award-winning mobile app for boaters – HarbaApp, a simple to use marina management software for harbour masters – HarbaMaster, as well as various IoT hardware solutions to support both parties. Harba has a mission to make boating and running marinas a breeze.
2023
Investor & Board Member
Sep 2023
At Develop Diverse, we strive to help companies build diverse and inclusive workplaces. We ensure they attract diverse talent and lay the foundation for a culture of inclusion and belonging. Our writing software supports bias-free writing by recognizing biased words and proposing inclusive alternatives.
2022
Investor & board member
Sep 2022
Poster & Frame Art Group, also operating as Poster & Frame Inc., is a Scandinavian-based leader in the art and print industry, founded in 2016. Our mission is to connect high-quality art with the world through innovative solutions and sustainable practices. Under our umbrella, we house several distinctive brands, each with its own unique identity and contribution to the art world. Curated Copenhagen offers carefully selected art collections, blending contemporary and timeless designs. By collaborating with emerging artists, it provides exclusive pieces for those seeking sophistication and style in their homes and spaces. Poster & Frame is a global platform for art enthusiasts and collectors, seamlessly bridging B2B and B2C markets. We deliver original art and custom framing solutions, enabling anyone to bring creativity and inspiration into their lives. Posterland, Northern Europe’s largest poster business for over 45 years, boasts an unparalleled selection of over 3 million prints, ranging from vintage classics to modern designs. With new ownership, it steps into a promising future while honoring its rich heritage. Permild & Rosengreen stands as a symbol of artistry and tradition, renowned for collaborations with artists and exclusive licensed collections. The brand seamlessly merges historical depth with a modern edge, offering prints for every aesthetic. Citatplakat, a celebrated Danish poster brand from “Løvens Hule” (Shark Tank), connects with a broad audience through iconic quotes and a distinct design style, making it a favorite across demographics. Dialægt, also featured on “Løvens Hule,” celebrates local dialects with a patented design. Now expanding nationwide, it captures hearts and conversations with its unique charm. Together, we champion the values of real art, sustainable innovation, and strong partnerships, supporting artists and bringing their visions to life globally.
2018
COO & Investor (acquired by Chaos)
Sep 2018
A world leader in design and visualization technology. Chaos develops technology for architecture, engineering, construction, product design, manufacturing, and media and entertainment. With our research and development, we are revolutionizing the creative process with our integrated end-to-end ecosystem. By streamlining and accelerating workflows, we empower our customers to enhance creativity and drive innovation. In 2022 Chaos merged with Enscape and acquired Cylindo. In 2023 Chaos acquired AXYZ design. In 2025 Chaos acquired EvolveLAB. Headquartered in Karlsruhe, Germany, Chaos has offices in 11 cities worldwide.
2017
Board Member
Aug 2017
We are a software company specialized in B2B Sales Enablement. Our platform, Napp, supports all steps of the sales process from pitching to sealing the deal and turns client meetings into customers. Napp Sales Enablement empower sellers to support buyer’s journey at every stage of the process. Napp keeps marketing, excellence and sales aligned to meet increasing demands. ENABLE SALES Provide content, tools and information for sales to effectively support any buyer’s journey. ENGAGE BUYERS Present, address buyer’s needs, share the most relevant content with buyers and track their engagement. OPTIMIZE PERFORMANCE Analyze behavior, develop compelling content, drive alignment and improve win rates.
Show all 15 entries ↓
Investment activity
2015–2024 · 7 investments
201512017220181202212023120241
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