Tosoma Co., Ltd.

Tosoma Co., Ltd. (トソーマ株式会社) is a Japanese marketing company that focuses on customer acquisition (集客) for businesses in the exterior wall painting and roof renovation industry. The company was founded by Yasuhiro Okazaki, who worked as a craftsman on job sites and dealt directly with clients before launching Tosoma to apply marketing expertise specifically to the exterior painting sector. According to its official website, Tosoma has supported more than 500 exterior wall painting and roof renovation companies, accumulating extensive industry data and know-how. The company positions itself as a specialist agency that understands the real conditions of the painting and roofing trades, in contrast to general consulting firms or advertising agencies that lack industry knowledge. Its services center on digital customer acquisition methods such as listing ads (リスティング広告) on Google and Yahoo!, and the creation of landing pages (LP) rather than full websites, which it argues are more cost-effective and better at generating leads for these businesses. Tosoma also warns against common pitfalls such as low-cost LP production, long-term website contracts, and low-budget ad management that can lead to poor results. Tosoma claims a strong reputation, stating that over 95% of its Google Maps reviews are the highest rating as of May 2025, and that 20 out of 21 companies rated it the highest. The website features testimonials from clients such as Yamamoto-kun Co., Ltd. (operating the "Reform no Tora" chain), Nuriten-ya Kichi, and Takahashi Painting Co., Ltd., describing transformations from door-to-door sales to inbound marketing and significant sales increases. The company is led by representative director Yasuhiro Okazaki, who has appeared in over 100 YouTube videos on the industry portal "Exterior Painting Window" (外壁塗装の窓口) and helped a 1.5 billion yen door-to-door sales company shift to inbound marketing within two years, achieving record sales.

Tosoma Co., Ltd. was established by Yasuhiro Okazaki, who had prior experience as a craftsman working on-site and interacting directly with homeowners. Recognizing the marketing challenges faced by exterior wall painting and roof renovation companies, Okazaki founded Tosoma to provide specialized customer acquisition services for this industry. The company has grown to support over 500 such companies, according to its website. It has developed expertise in digital marketing methods tailored to the construction trades, including listing ads and landing pages. The company claims a high satisfaction rate, with over 95% of its Google Maps reviews being the highest rating as of May 2025. Tosoma continues to operate as a private marketing agency in Japan.

• Company founded by Yasuhiro Okazaki

• Supported over 500 exterior painting and roof renovation companies

• As of May 2025, over 95% of Google Maps reviews are highest rating

Specialist marketing agency for the exterior wall painting and roof renovation industry, claiming domestic No.1 in that niche.

• Listing ads management

  Management of text ads on Google and Yahoo! search results, claimed to be highly cost-effective for exterior painting and roof renovation companies.

• Landing page (LP) production

  Creation of single-page websites focused on lead generation, argued to be cheaper and more effective than full websites for these businesses.

1. 1Tosoma Co., Ltd. Official Websitetosoma.co.jp
2. 2Wikidata entry for Tosoma Co., Ltd.wikidata.org