SPEC Toolbox Lands $2 Million to Simplify Sustainable Construction
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SPEC Toolbox Lands $2 Million to Simplify Sustainable Construction

The pre-Series A round, co-led by Black Nova and Investible, will fuel the platform's global expansion.

1/19/2026
Ali Abounasr El Alaoui
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Construction technology platform SPEC Toolbox has secured USD$2 million in a pre-Series A funding round to enhance its global expansion. Co-led by Black Nova and Investible, the investment will fuel the company's mission to simplify using innovative materials in building design. This capital injection validates the startup's approach to tackling the industry's pressing affordability and sustainability challenges.


From Niche Focus to Broader Horizons

Founded by structural engineers Adam Jones and Ringo Thomas, the company initially launched as CLT Toolbox. Its focus was on simplifying complex calculations for mass timber, a technically demanding field. The founders soon discovered that design bottlenecks were a universal problem stifling innovation across many modern building materials.

This realization prompted a rebranding to SPEC Toolbox, reflecting a broader mission to automate complex engineering tasks. The platform now serves as a critical bridge, connecting product suppliers with designers by removing technical barriers. This streamlined pathway empowers engineers to confidently select and implement modern materials that challenge traditional norms.

Fueling Global Expansion and Product Development

CEO Adam Jones stated the new funds are earmarked for significant platform enhancements and market penetration. The company plans to accelerate its product roadmap, onboard new suppliers, and deepen its existing technical infrastructure. This strategic allocation of capital is designed to fast-track the platform's adoption on a global scale.

SPEC Toolbox has already demonstrated impressive momentum since its 2023 seed round. The platform has successfully expanded its reach into key international markets, including Europe, the United Kingdom, and North America. This growth is underscored by achieving over 6,000 user signups and partnering with more than 35 product suppliers.

Investor Confidence and Market Validation

Investors have expressed strong confidence in the company's vision and execution. Ben Lindsay of Investible highlighted the encouraging customer response and the team's expansion from a timber niche to the broader market. Matt Browne of Black Nova noted the platform effectively turns industry frustrations into a scalable solution.

This pre-Series A round builds upon approximately USD$1.6 million in prior funding, including a seed round led by Archangel Ventures. The continued financial backing from a syndicate of prominent venture firms validates the platform's clear product-market fit. This consistent support signals a strong belief in SPEC Toolbox's potential to reshape the specification process.

Addressing Industry-Wide Challenges

The platform directly addresses the construction sector's urgent need to reduce its significant carbon footprint. By making sustainable materials like mass timber more accessible, SPEC Toolbox provides alternatives to carbon-intensive products like concrete. This helps designers and engineers contribute to building a zero-embodied-carbon future for the built environment.

SPEC Toolbox also tackles a critical education gap, as university programs often prioritize traditional materials over modern innovations. The software provides essential digital infrastructure, equipping professionals with the tools needed to adopt sustainable solutions effectively. This empowers engineers to design with materials that university curriculums have yet to fully embrace.


With its latest $2 million in funding, SPEC Toolbox is positioned to accelerate its mission of making sustainable construction accessible and efficient. The investment validates the company's innovative approach and equips it to drive meaningful change across the global building industry. As the platform expands, it promises to be a vital tool for a more innovative and sustainable future.