Alliance Building Services was founded in July 2006 by Gavin Yost in Bellevue, Washington, with the vision of delivering exceptional commercial janitorial services. Gavin, who had previously worked his way up from a janitorial supervisor to the Vice President of Operations at Allied Building Services over a span of 13 years, brought a wealth of industry experience to his new venture. A graduate of Central Washington University in 1992, Gavin’s deep understanding of the industry, coupled with a passion for excellence, laid the foundation for Alliance Building Services.

The company quickly found success, signing its first account within just 15 days of opening. This early success was a testament to Gavin’s expertise and his unwavering commitment to quality service. Alongside him in this venture was Scott Smith, who joined as Vice President and Principal in 2008. With over a decade of industry experience, Scott brought specialized knowledge in customer satisfaction and business development, areas that have been key to the company’s growth. Together, Gavin and Scott took hands-on roles in overseeing all aspects of operations, ensuring Alliance Building Services was set on a path of sustained success.

Over the course of the next 15 years, Alliance Building Services expanded significantly. The company has grown to employ over 500 team members and has had the privilege of servicing more than 300 accounts, specializing in commercial office spaces, technology companies, industrial facilities, professional medical offices, and retail establishments.

In June 2017, Brandon Burton joined the team as the General Manager of Operations. Brandon, with more than a decade of experience in the commercial janitorial field, played a pivotal role in enhancing the operational efficiency and service quality of the company.

In 2020, Alliance Building Services moved its headquarters to Renton, Washington, strategically positioning itself to better serve its growing customer base within the market area. The relocation marked another milestone in the company's evolution, as it worked to centralize operations and strengthen its service offerings.

Today, the company employs a dedicated team of six highly trained account managers, three day porter managers, and five night operations managers, many of whom have been with the company for years. The office staff has also grown substantially from an initial three-person office team to a full-time staff of 12. The janitorial team has similarly expanded to over 500 employees, all of whom share the company’s core values of professionalism, integrity, and quality service.

At the heart of Alliance Building Services' success is their commitment to excellent service, which is rooted in the belief that their employees and customers deserve to be treated with care and respect. This dedication has set them apart in the competitive janitorial industry, making them a trusted partner for businesses throughout the region.

From its humble beginnings to its current position as an industry leader, Alliance Building Services continues to uphold its founding principles, with a focus on quality, customer satisfaction, and the well-being of its employees. As the company moves forward, it remains focused on delivering exceptional cleaning services and maintaining its reputation as a reliable, customer-first provider.