Our Leadership Team

Peter Sporen - Chairman

Born in the Netherlands, Medical background. Started his career at Stopler Medical BV in surgery equipments, extended his career international and became the Executive for the USA Candela Inc as Executive in Europe, Africa and the MEA.


He has jointed a number of international companies with a global reputation. He has more then 30 years of global business experience. 


Pachata Butrsrimongkol - CEO

Pachata is the founder of InControl Company, as a Managing Director, he is for the Company Performance, Operation, Strategic Planning and Execution.


He has more than 20 years professional experience in Management, Engineering, Project Engineering, Project Management and Project Development. Having worked for Shell and Chevron. Montri brings unique Operating Company Experience to InControl.


Dr. h.c. Richard Ruijgrok, LL.M. - DCEO


Robert Knobler - Strategic Management Director

He grew up in LIma, Peru where he graduated from the American School of LIma, Peru. He then moved to New York City

where he registered in a combined BA/BS 5 year program at Columbia University. Thus,  he graduated from Columbia College with the degree of Bachelor of arts.

He then finished his studies at the Columbia School of Enginnering and Applied Science in Industrial and Management Engineering with a bachelor of Science degree.

In between he worked as a consultant for Roland J. Kalb and Associates in New York where we did a number of projects for major institutions

such as the Montefiore Hospital in the City of New York, Long Island Jewish and others.

Following he was accepted at the Vienna University School of Medicine  where ge graduated with an MD degree and then proceeded to do his specialty in Dermatology

and Venereology with a 2 year visiting scientist fellowship (May Kade Foundation) position at the Columbia College of Physicians and Surgeons, department of Dermatology

again in New York.  There he still have the function of a visiting professor and a member of the facultly.

While at Columbia he was in  involved in  the development of extracorporeal photopheris and took it to Europe where it has found a major use in the areas of cutaneous T-Cell Lymphoma,

Control of Lung Transplant Rejection, Heart Transplant Rejection as well as allogeneic Bone Marrow Transplant Rejection etc.  As director of the center in Austria we managed to put up the largest program

in Europe and still are. Published in over 275 peer reviewed journal papers, member of numerous societies etc. etc. etc.

Boonlawat Homvisest - Scientific Advisory Board Member


Assistant professor Boonlawat graduated medical degree at Siriraj hospital, Mahidol University, Thailand with first-class honors in 2000. He then finished general surgery and cardiothoracic surgery training from the same institute in 2008 and became consultant for cardiothoracic surgery at Thammasat university hospital.

In 2015, he went to Cambridge, United Kingdom and worked at Transplant unit, Papworth hospital as a clinical fellow in Heart and Lung transplantation for 2 years.

He is an expert in minimally invasive cardiac surgery, minimally invasive thoracic surgery, heart/lung transplantation and mechanical circulatory support. He currently has experience in performing surgery more than of 2000 cardiac cases and also 2000 lung cases. He is well known Thai’s cardiac surgeon and recognized as a authority in the field of minimally cardiothoracic surgery.

Boonying Siribumrungwong - Scientific Advisory Board Member


Associated Professor Doctor Boonying graduated medicine from Chulalongkorn University, first degree honor in 2001 then started his surgical residency training at Chonburi provincial hospital for 4 years. After that he work at Thammasat University Hospital as a general surgeon and a lecturer. He interested in varicose vein, vascular access, peripheral arterial occlusive disease and aneurysmal surgery for both open and endovascular approach. He got Diploma Thai Subspecialty Board of Vascular Surgery  in 2016 and PhD in clinical epidemiology in 2017. He also had a chance to do clinical training of vascular and endovascular procedures at Nippon Medical School, Tokyo, Japan in 2018.


His current positions are

·       Associated Professor of Surgery

·       Head of Division of Vascular and Endovascular Surgery, Department           of Surgery, Faculty of Medicine, Thammasat University Hospital

·       Assisted Director of Thammasat University Hospital

·       Committee of Thai Venous Forum of Thai Vascular Association