Constructor is a software company based in the United States, founded in 2015, with a focus on customer relationship management (CRM) software, building materials in the construction sector, and general real estate applications. With an employee count between 201 and 500, the company reported revenue of approximately $42.6 million. Constructor's published document, titled "2026 Building Blocks Volume 1," serves as a guide on personalization strategies within the retail sector. It discusses the evolution of personalization technology, emphasizing the transition from basic rule-based targeting to advanced, adaptive solutions that enhance customer experiences. The document outlines the Personalization Maturity Curve, providing insights into the varying stages of personalization adoption among retailers and the challenges they face in delivering tailored experiences. Constructor's expertise appears to lie in leveraging technology to improve customer interactions and optimize marketing strategies, addressing common pitfalls in the personalization journey and offering a self-assessment tool for organizations to gauge their current maturity level in this area.