Greenly, a company addressing the climate crisis through carbon accounting, has significantly enhanced its internal and external tool development by leveraging Retool, a platform that balances the flexibility of custom software with the efficiency of pre-built solutions. Initially adopted to build internal tools rapidly, Retool has enabled Greenly to save over 50 engineering hours monthly and streamline processes across various departments, such as creating custom solutions for sales teams and carbon calculators for climate experts. As the company expanded its use of Retool, it began developing tailored customer-facing applications, allowing for quick iterations and customized experiences across diverse industries like finance and food. These Retool-built apps are integrated into Greenly's customer portal, facilitating seamless data collection and analysis while maintaining stringent data security standards. Greenly's approach, championed by COO Matthieu Vegreville, empowers team members to contribute to product development, promoting a culture of innovation and efficiency while focusing on the core mission of reducing carbon emissions.