HR Outsourcing Services
Provider behind a leading IT company’s success for over 30 years


International Tech-foundation Partner Specialized in Human and Technology


“One Step Ahead Human & Technology Solution”


Art of Human

 • Compassionate Solution 

Always have intensive human understanding to provide most insightful solution for all

 • One Step Ahead Knowledge

Put knowledge as priority for all to create constant improvement and one-step-ahead progress beyond market


Science of Technology

 • One Step Ahead Technology Adoption 

Always adopt customer-centric technology to provide one-step-ahead tech solution for all clients

 • International Standard Technology Service

Progressively certified by international standard and license in technology to ensure perfect professionality

Our Journey

Professional One has been an HR Outsourcing Services specialist for over 30 years. Our journey began in electronic typewriter repair and maintenance services, and expanded to IT personnel outsourcing when a leading international IT company adopted an outsourcing strategy in its Thailand business management in 1990. Professional One was the first and only trusted local provider to provide HR Outsourcing Services to the company. Based on our expertise in IT personnel recruitment, payroll management with 100% on-time proven record, long-term employee relations management, comprehension in IT resources nature, knowledge in the Thai Labour Protection Act and related laws, and awareness of end-result which will impact our clients, Professional One’s Outsourcing Services has been trusted by the international IT company ever since and we were selected to be a Skilled IT Resource Service Provider in 1997. We continue to improve our work process and HR technology and assure our clients in our services with quality management standard ISO 9001.

Professional One did not stop our journey at IT personnel outsourcing. We recognized that our clients need technology to help compete in the market. That’s when we expanded our IT capability by establishing Pro One IT Company Limited in 2012 to provide IT Services covering IT infrastructure services and IT solutions. View Pro One IT’s services here.

Professional One has been recognized by Manage HR Magazine
as one of the Best Top 10 PEOs in APAC 2021.


ISO 9001​​

To ensure our clients receive impressive services, Professional One’s quality management system is ISO 9001 certified. We continue to thrive through annual customer satisfaction surveys which allow us to create systematic continuous improvement plan.

ISO 27001

Professional One is aware of important information protection, maintenance, and availability in the business. Our information system conforms to Information Security Management Systems ISO 27001. Clients can be assured that we can provide continuous services with our Business Continuity in place.

Our Services

HR Outsourcing

One-top HR Outsourcing Services
in recruitment, payrolling, and benefits
management complying with
the Thai Labor Protection Act

Visa &
Work Permit

Visa and Work Permit Services for
expatriate personnel, serviced
by consultants who can speak
both Thai and English.

Secondment Employment

Significantly minimise your operating cost
with Secondment Services. The best
option for clients without an entity in
Thailand to temporarily employ local
and expatriate employees in Thailand or
while establishing your entity in Thailand.