Contact

Please contact us through our inquiry form or by phone.

Call Us

+81-98-897-6781

Business Hours: 8:00 AM – 5:00 PM (Closed on weekends and holidays)

OKINAWA HEAD OFFICE
901-2223
7-11-47 Oyama, Ginowan-shi, Okinawa
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Company

Mission

Bridging global expansion,building a better future.

Vision

Pioneering global comfort from Okinawa.

At American Engineering Corporation (AEC), our vision is “Pioneering global comfort from Okinawa.”
We strive to be a company that provides the highest standard of engineering, construction, and maintenance services to clients operating across borders.

Message

Established in 1964 and registered in the state of Delaware, USA, American Engineering Corporation (AEC) began operations in Okinawa, Japan, where it quickly became a strong presence. Starting with just 20 employees, AEC has since grown into a globally recognized construction firm, employing over 1,100 people in 2025 with 11 locations across Japan and beyond. Our steady growth is a result of our ability to adapt to technological advancements and evolving market needs.

Today, AEC holds the largest market share in U.S. military base construction projects in Okinawa, while also serving the private sector with diverse construction solutions. Our Mainland Japan Operations Headquarters leads a variety of initiatives, including the development and installation of advanced security systems for major corporations. With a proven track record in both infrastructure and cutting-edge technologies, AEC has earned a reputation for reliability, excellence, and dedication, driven by the expertise and hard work of our employees.

As the demand for infrastructure and environmental adaptation continues to grow, we are committed to building a sustainable future. Safety, quality, and service excellence remain our top priorities as we seek to enhance our offerings. At the same time, we prioritize creating a supportive work environment where our employees can thrive, grow, and innovate. Cultivating a strong corporate culture and nurturing the next generation of leaders are central to our long-term success.

In 2024, we celebrated our 60th anniversary and reaffirmed our position as Okinawa’s leading general contractor. With an eye on the future, we are expanding our presence into Asia and the Pacific, focusing on regions with U.S. military installations. As we look toward the next 100 years, we are committed to continued growth and value creation through innovation and adaptability.

President
Kenneth Mark Exsterstein

Kenneth Mark Exsterstein

Company Info

Company Name
American Engineering Corporation
Est.
13 April 1964
President
Kenneth Mark Exsterstein
Areas of Service
1. Civil engineering, construction and architecture, electrical engineering, plumbing, installation of machinery, fire protection devices, demolition works, designing/ contracting/ implementing/ managing other related works
2. Maintenance, security and cleaning services for buildings, facilities and machineries
3. Selling and leasing machinery, hardware, equipment and building materials
4. Telecommunication business in accordance with Japan’s Telecommunication Businesses Act
5. Industrial Waste Disposal
6. Business of every kind in relation to the above
Head Office
7-11-47 Oyama, Ginowan-shi, Okinawa, 901-2223 Japan
Construction License
(TOKU-3)No. 24146 Issued by Minister of Land, Infrastructure, Transport and Tourism

History

1964年 米国デラウエア州に会社設立。沖縄本社開設
1964
Company established in Delaware, USA
Established Okinawa Head Office
1972年 先代と社員の集合写真
1972
Founding team — group photo of the founder and early employees
1973年 野嵩本社前の会社の看板
1973
Company signage at the Nodake headquarters (former head office)
1979年 野嵩本社
1979
Nodake headquarters (former head office)
1982年 野嵩本社 集合写真
1982
Group photo at the Nodake headquarters (former head office)
1995
Established Misawa Office
2003
Established Tokyo Branch Office
2009
Established Iwakuni Office
2012
Established Sasebo Office
2017
Became a group company of BREXA Holdings Inc.
2019
Acquired ORION Construction Corporation as a subsidiary
2021
Acquired California Pacific Technical Services LLC as a subsidiary Established Osaka Office
March 2023
"Okinawa SDGs Partner" Certification
Okinawa SDGs Partner Certification
June 2023
"Okinawa Prefecture Work-Life Balance Company" Certification
Okinawa Prefecture Work-Life Balance Company Certification
November 2023
"Okinawa Prefecture Income Enhancement Support Company" Certification
Okinawa Prefecture Income Enhancement Support Company Certification
April 2024
We revised our Japanese company name to "アメリカンエンジニアリングコーポレーション"
April 2024
Relocated new Head Office
April 13th 2024
60th Anniversary
November 2024
"Okinawa human resource development enterprise authentication system" Certification
December 2024
Relocated new Iwakuni Office
March 2025
"KENKO Investment for Health (KIH) 2025" Certification
KENKO Investment for Health (KIH) 2025 Certification

Access

OKINAWA HEAD OFFICE

901-2223
7-11-47 Oyama, Ginowan-shi, Okinawa

TEL
+81-98-897-6781
FAX
+81-98-897-1086

MAINLAND JAPAN OPERATIONS HEADQUARTERS

252-0303
3F. Chuo-Sogyo Bldg. 3-20-1 Sagamiono, Minami-ku, Sagamihara-shi, Kanagawa

TEL
+81-42-701-8472
FAX
+81-42-701-8473

MISAWA OFFICE

033-0033
1-2-5, Minohara, Misawa-shi, Aomori

TEL
+81-176-57-3800
FAX
+81-176-58-7553

YOKOTA OFFICE

197-0013
1-9-2, Musashinodai, Fussa-shi, Tokyo

TEL
+81-42-513-0706
FAX
+81-42-701-8473

YOKOSUKA OFFICE

238-0004
105 Fudo Yokosuka Mikasa Heights, 23-1, Ogawa-cho, Yokosuka-shi, Kanagawa

TEL
+81-46-874-9965
FAX
+81-42-701-8473

OSAKA OFFICE

533-0031#501 Shin Osaka A-zu Bldg. 1-1-32, Nishiawaji, Higashiyodogawa-ku, Osaka-shi, Osaka

TEL
+81-66-195-5610
FAX
+81-42-701-8473

IWAKUNI OFFICE

740-0024
3-3-31, Asahi-machi, Iwakuni-shi, Yamaguchi

TEL
+81-827-28-4273
FAX
+81-827-28-4274

SASEBO OFFICE

857-0832
1-9, Fujiwara-cho, Sasebo-shi, Nagasaki

TEL
+81-956-20-8092
FAX
+81-956-20-8093

Group Companies

AEC is part of the BREXA Holdings group.
For the latest information on group companies, please visit the official BREXA Holdings website.