# SPEC Toolbox

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/spec-toolbox

- Industry: Software
- Headquarters: Melbourne, Australia
- Website: www.spectoolbox.com
- Total disclosed funding: $1.5M
- Latest round: Seed (Oct 9, 2023)
- Investors on record: 6

## About

Based in Victoria, Australia, and founded in 2023 by CEO Adam Jones and CCO Ringo Thomas, CLT Concepts Pty Ltd., doing business as CLT Toolbox, operates as a prop-tech company that develops structural design software and automated tools for structural engineers. In January 2026, CLT Toolbox raised USD 3 million in pre-series A funding co-led by Black Nova Group and Investible. The company provides engineering software that helps structural engineering teams by providing education, specifications, resources, computations, and design infrastructure. The software automates the design routines (eliminating the need to build spreadsheets) and offers educational features to provide content on design inputs. CLT Toolbox generates revenue from the subscription of its software package at AUD 600 per license per quarter.
The company will use the January 2026 funding to speed up its product roadmap, add more suppliers, and strengthen its technical platform to support wider adoption of its construction tools.

## Funding rounds

- Seed, Oct 9, 2023, $1.5M — Aconex, Archangel Ventures, Flying Fox Ventures, Gravel Road Ventures, BlueScope Steel Limited, Ecotone Partners

## Investors

- Aconex — Seed
- Archangel Ventures (https://capitalatlas.ai/funds/archangel-ventures) — Seed
- Flying Fox Ventures (https://capitalatlas.ai/funds/flying-fox-ventures) — Seed
- Gravel Road Ventures (https://capitalatlas.ai/funds/gravel-road-ventures) — Seed
- BlueScope Steel Limited — Seed
- Ecotone Partners (https://capitalatlas.ai/funds/ecotone-partners) — Seed