1. HOME
  1. Greeting
  2. Our Motto
  3. Company Profile
  4. History
  5. Alignment
  6. Access


Since the foundation in 1994, NAVREX & Corp., as the specialist in marine surveys and inspections regarding accidents and casualties at sea, has provided high-quality and up-to-date services to the clients' satisfaction, through the long professional experience and the latest knowledge and expertise.

President  Sadao Hosotani

Our Motto

  • IMPROVEMENT:To keep seeking to improve our expertise and promote the ability of ourselves
  • QUICK-RESPONSE:To be always ready for quick-response, anytime, anywhere, and in whatever cases
  • SINCERITY:To win the public recognition as a leading company, and act with sincerity
  • STUDY:To study the background of various problems in the survey, and thereby produce the best results

Company Profile

Company Name Navrex & Corp.
Company Executive Sadao Hosotani, President
Foundation October 1994
Capital JPY3,000,000.-
Employees 12 (As of the end of June 2023)
TEL +81-(0)86-462-6262
FAX +81-(0)86-462-5679
Address of Head Office 2F NRX HOUSE Ⅱ, 460-2 Nishizaka , Kurashiki city, Okayama Pref., 710-0004

Group Companies

  • IBEX Marine Co., Ltd.
  • Reliable Marine Service (Qingdao) Ltd.


1994 Capt. Sadao Hosotani, the Executive, spent the first decade of his career as an officer on board various cargo vessels plying all over the world. He then participated in plant construction projects as the officer in charge of materials transportation, and served as a superintendent / port captain, and experienced cargo damage survey & appraisement services. Then he established NAVREX & Corp. and commenced marine survey and appraisement services at Ikusaka 2429-52, Kurashiki-city, Okayama- pref.
1995 NAVREX & Corp. (company limited) was incorporated as a corporation.
2001 NRX was registered as trademark at the Japan Patent Office.
2002 NAVREX office was newly located at Ikusaka 2429-73, Kurashiki-city, Okayama-pref.
2006 The corporate name was changed into "NAVREX & Corp.".
2010 Reliable Marine Service (Qingdao) Ltd. was jointly established with Standard Marine Surveyors & Adjusters Co., Ltd. (located in Qingdao), in Qingdao-city, Shandong Province, China
2011 Accredited ISO9001:2008, and JIS Q 9001:2008.
2016 New office building was built at 460-2 Nishizaka, Kurashiki City and moved. (3 minutes from Kurashiki IC on Sanyo Expressway)
2018 Withdrawn ISO9001:2008, JIS Q9001:2008


We are aligned with survey companies in China and Korea, thereby covering China, Korea and Japan.
Moreover, we have been in contact with leading survey companies in France, Singapore, Egypt, Chili and the Netherlands.


Access Map(PDF)

View Larger Map

return top