Meet anew Medfiles USA.
Established in 1984, DZS Clinical Services (now Medfiles USA) has been providing Clinical development, Clinical operations and Data analytics services for many years since its inception, supporting numerous clinical development projects in the US, China, and the Middle East and North Africa regions. After joining the WDB Holdings Co., Ltd., in 2018, DZS has continued to grow further through synergies with Medfiles, which operates primarily in the EU within the same group. As of January 2023, the company will be integrated with Medfiles and will aim for further growth and expansion as Medfiles USA, especially by strengthening its Regulatory affairs and Pharmacovigilance services.

Medfiles services include pharmaceutical development and analytical services, phase I–IV drug studies (in humans and animals), medical device investigations, food and nutrition studies, regulatory affairs related to human and veterinary medicines, medical devices and IVDs, food and nutrition, health economics/market access, and pharmacovigilance. Additionally, we offer services in preparation of pharmaceutical documentation, medical and regulatory writing, translations, Qualified Person (QP) activities, and pharmaceutical wholesaling. We also provide consultation on all of the above-mentioned subject areas. We are happy to help you starting from small tasks to extensive long-term projects.​

All this culminates in our “one-stop-shop” service package which offers you a rapid, fluent and cost-effective way of outsourcing your activities. For detailed information, please have a look at the Services descriptions of Medfiles and contact directly.

Medfiles – a unique outsourcing company with a mutually profitable range of services to pharmaceutical, medical device and food, nutrition and cosmetic companies, as well as other clients in health care and related industries. Medfiles follows quality standards and procedures and is being continually audited by regulatory authorities and clients.​



New Jersey
1100 Cornwall Rd, Suite 211,
Monmouth Junction,
NJ 08852
Tel. +1 732 764 6970


Tel. +358 20 7446 800

Kuopio (Headquarters)
Volttikatu 5, P.O.Box 1450
FI-70700 Kuopio, Finland

Hermiankatu 6-8 H, 2nd Floor
FI-33720 Tampere, Finland

Street address: Rajatorpantie 41 B
Postal address: Rajatorpantie 41 C
FI-01640 Vantaa, Finland


Kastani 42
EE-50410 Tartu
Tel. +372 7305 400


Cesu iela 31 k-2
LV-1012 Riga
Tel. +371 67 370 250


Laisves pr. 3
LT-04215 Vilnius
Tel. +370 52 461 640


Yusen Building 2F, 2-3-2 Marunouchi,
Chiyoda-ku, Tokyo 100-0005
Tel. +81 3 6270 5210​