Building Relationships is the Core of Our Business


“Tri-Asia was founded with a shared vision—to deliver exceptional hospitality experiences while fostering meaningful relationships with our clients. We are a family-run, boutique hospitality management company, and our goal has always been to provide personalized, hands-on service that truly makes an impact.

With decades of experience between us, we’ve had the opportunity to manage and develop some of Thailand’s most distinguished resorts and luxury villas. Our combined expertise in hospitality management, sales, marketing, construction, and operations means we can oversee every aspect of a project—from the first plans to ensuring operational success. Throughout it all, trust, transparency, and long-term partnerships remain at the core of what we do.

At Tri-Asia, we treat our clients like family. We believe that building strong relationships leads to trust, lifelong friendships, and, ultimately, exceptional results. Whether we’re managing properties, handling sales, or developing new projects, our focus is always the same: to exceed expectations and provide not just quality service, but an unforgettable experience.”

— Lars & Boom Ydmark

Lars Ydmark, Founder & Managing Director

Lars Ydmark, a Swedish national, has over 30 years of senior experience in hospitality and real estate management, primarily in Thailand. His career began with key roles in international hotels, including Sheraton and Shangri-La, where he managed large-scale operations across Asia and beyond. Notably, Lars was instrumental in the opening of several high-profile properties, including Novotel Phuket Resort, where he served as General Manager, and the Shangri-La Jakarta, where he coordinated operational issues during its construction​.

Lars's expertise spans all areas of hotel and resort operations, including project management, sales, marketing, finance, and human resources. He has successfully overseen the development and management of multiple luxury properties in Phuket, such as Grove Gardens, Dewa Phuket, and the Coastal Escape villas. His deep understanding of local customs and business laws, combined with his leadership and entrepreneurial skills, have earned him a reputation for excellence and integrity in the industry​. Lars continues to focus on expanding Tri-Asia's hospitality management, real estate development, and sales services, while fostering long-term partnerships built on trust and transparency.

Boom, Co-Founder & Guest Services Director

Boom, originally from Bangkok, has an extensive background in guest relations, which forms the cornerstone of her role at Tri-Asia. Her career began at Club Med Phuket as a Gentile Organiser (GO), followed by roles at Le Meridien Phuket and Amanpuri, where she focused on guest services and relations​(Boom). Her experience in high-end guest care and service excellence is critical to Tri-Asia’s operations, ensuring that every client and guest receives the highest level of personalized service.

As a co-founder of Tri-Asia, Boom has been integral to the company’s success, overseeing daily operations and ensuring that Tri-Asia delivers not only operational excellence but also a warm, personal touch.

Her ability to build lasting relationships with clients has helped establish Tri-Asia as a trusted boutique hospitality management company​. Boom’s focus on client satisfaction, combined with her industry experience, drives the company’s reputation for exceptional service.

Carl Ydmark, Head of Marketing

Originally from Phuket, Carl studied at the British International School of Phuket. He then relocated to Helsingborg, Sweden, to pursue his International Baccalaureate diploma. Shortly after, through his internships in Bangkok and Dubai, he gained valuable insights into the hospitality industry. Upon completing his internships, Carl later moved to the Netherlands to attend the University of Amsterdam, where he majored in Media and Information studies. Following his graduation, he began his career in the tech sector as a recruiter before moving into a role as a Customer Success Associate at an electric vehicle solutions provider. Carl is now heading the ongoing management and growth through Marketing related areas in Tri-Asia

Rae Ann Collier, Head of Sustainability & ESG

Rae Ann is originally from Los Angeles, and moved to the Netherlands to study International and European Law at The Hague University, specializing in Environmental Law and Trade Law. Her commitment to sustainability grew during an internship at Damen Shipyards, where she measured the circularity of one of Damen’s electric vessels, gaining insights into sustainable shipbuilding practices.


After graduation, Rae Ann became Damen’s Group Environmental Coordinator, developing an environmental program focused on compliance with new regulations like the EU Corporate Sustainability Reporting Directive (CSRD). Later, she joined Seavents, a Dutch startup specializing in sustainable waste management for large music festivals such as Tomorrowland in Belgium. Rae Ann’s journey reflects her dedication to impactful sustainability across various sectors.

Fabian Ydmark, Head of Innovation & Growth

Originally from Göteborg and Phuket, Fabian studied Business Administration at Regent’s University and Stockholm University. Fabian started his career with business development and logistics in the IT infrastructure scene of Stockholm in 2013. Since then he has been Sales Director for Wiget Media, at the time one of the largest ad networks. He then started his own consultancy business, focusing on producing digital strategy, content and campaigns as well as developing funnels and creating communication platforms for startups and early stage companies wanting to get their voice heard in an otherwise saturated market. Since 2017, Fabian has also been involved in the blockchain industry, He co-founded the worlds largest filtering service for crypto exchanges. Fabian was recently the CCO for one of the largest blockchain games on the Polygon blockchain, called Planet IX. At Tri-Asia, Fabian will oversee Innovation and growth.