Masaru Corporation (1795.T) engages primarily in construction activities in Japan, specializing in building repair, renovation, and maintenance works. The company provides large-scale building repair and renovation services; condominium and building renewal works; skyscraper sealing and waterproofing works; new waterproofing works; decoration works; direct ordering construction works; and equipment construction including air-conditioning, cooling and heating, and water supply and drainage systems. It operates through two main segments, Construction and Equipment Construction, targeting high-rise office buildings, apartments, and condominiums with a focus on long-term asset preservation, functionality maintenance, cost reduction, and asset value enhancement for property owners and residents. Founded in 1955 and headquartered in Tokyo, Japan, Masaru Corporation maintains operations exclusively within Japan, employing approximately 165 people and emphasizing safety, quality control, and post-completion aftercare services. Recent IR releases in November 2025 cover financial and investor information, while the company continues to leverage over 60 years of expertise in super high-rise waterproofing—covering about 70% of Tokyo's high-rises—and renewal technologies without reported major acquisitions, partnerships, or strategic shifts in the past 1-2 years.