ASEI on NASDAQ

American Science and Engineering

Logo: Kristel Boardman, CC0, via Wikimedia Commons3

American x-ray equipment manufacturer

American Science and Engineering Inc., (AS&E) is an American manufacturer of advanced X-ray equipment and related technologies, founded in 1958 by Martin Annis, Ph.D. Annis asked George W. Clark to join him in starting his company. Their primary work in the beginning was as a developer for NASA. Annis brought on as Chairman of the Board of Directors, Bruno Rossi, Ph.D., of MIT to help guide their efforts.2 Its shares trade on NASDAQ under the symbol ASEI.1 Wikipedia text CC BY-SA 4.0

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Last updated Oct 21, 2026.

Overview

1958Founded1

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American Science and Engineering Inc., (AS&E) is an American manufacturer of advanced X-ray equipment and related technologies, founded in 1958 by Martin Annis, Ph.D. Annis asked George W. Clark to join him in starting his company. Their primary work in the beginning was as a developer for NASA. Annis brought on as Chairman of the Board of Directors, Bruno Rossi, Ph.D., of MIT to help guide their efforts. Rossi had earlier confirmed the existence of cosmic rays, and postulated that black holes would emit tremendous bursts of cosmic radiation as they swallowed celestial objects. At the urging of Rossi, Annis brought on board Riccardo Giacconi, from Italy, to work on the effort to develop a detector. As a consultant to American Science and Engineering, Inc., Rossi initiated the rocket experiments that discovered the first extra-solar source of X-rays, Scorpius X-1. Despite Rossi's pivotal discoveries and work in this area, in 2002 Richardo Giacconi alone won the Nobel Prize for its discovery and invention Nobel Prize in Physics. The AS&E team made possible the Einstein Observatory (equipped with the first full imaging X-ray telescope on board a satellite, launched in 1978). Throughout his tenure as president of AS&E (from its inception in 1958 until he left in 1993), Annis was a leading inventor/scientist for the company, including inventing the backscatter technology, which enabled the detection of plastic explosives, he also invented the body scanner, originally developed as a machine to detect contraband in/on people for prisons, but later adopted for use in airports. Body scanners are now standard as part of pre-boarding security screenings in airports around the world. AS&E also produced the first 4th generation CT scanner for commercial use in 1976. [1]2

Corporate structure

American Science and Engineering is part of a group headed by OSI Systems. 72 entities, 30 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • OSI Systems Hawthorne, California, United States
    • American Science and Engineering Billerica
    • Altaflex Subsidiary · California, United States
    • American Science and Engineering Global de Mexico S. de R.L. de C.V. Subsidiary · Mexico
    • AS&E Global, Inc. Subsidiary · Massachusetts, United States
    • Aviation Security Management, LLC Subsidiary · Florida, United States
    • Chassis Engineering Limited Subsidiary · United Kingdom
    • Continental Electronics Corporation Subsidiary · Nevada, United States
    • Control de Accessos y Seguridad Privada Gatekeeper, S. de R.L. de C.V. Subsidiary · Mexico
    • Control Insights, LLC Subsidiary · California, United States
    • CXR Limited Subsidiary · United Kingdom
    • ECIL-Rapiscan Security Products Limited Subsidiary · India
    • Gatekeeper Inc. Subsidiary · Delaware, United States
    • Gatekeeper Inspection Technologies LLC Subsidiary · Virginia, United States
    • Gatekeeper Security Middle East FTZ Subsidiary · United Arab Emirates
    • Global International Holding, Inc. Subsidiary · Delaware, United States
    • Lenview Limited Subsidiary · United Kingdom
    • Lenview Property Development (Biddulph) Limited Subsidiary · United Kingdom
    • OSI (Holdings) Company Limited Subsidiary · United Kingdom
    • OSI Billerica Holdings, LLC Subsidiary · Massachusetts, United States
    • OSI Electronics (UK) Ltd. Subsidiary · United Kingdom
    • OSI Electronics de Mexico, S.A. de C.V. Subsidiary · Mexico
    • OSI Electronics Pte Ltd. Subsidiary · Singapore
    • OSI Electronics Sdh. Bhd. Subsidiary · Malaysia
    • OSI Investment Egypt For Trading LLC Subsidiary · Egypt
    • OSI Optoelectronics Sdn. Bhd. Subsidiary · Malaysia
    • and 46 more

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

Timeline

  1. 1958Founded Founded1

Funding

Where the company's money came from, by calendar year: private offerings filed with the SEC, federal grants, loans, contracts and other assistance from USAspending.gov, and PPP loans from the SBA. Each bar links to the records below.

Money received by year$1.2B 2008–2026
Figures by year
YearFederal contractsTotal
2026$334.7K$334.7K
2024$11.9M$11.9M
2023$41.7M$41.7M
2022$36.6M$36.6M
2021$33.9M$33.9M
2020$49.8M$49.8M
2019$55.0M$55.0M
2018$128.0M$128.0M
2017$86.2M$86.2M
2016$68.1M$68.1M
2015$31.9M$31.9M
2014$16.7M$16.7M
2013$16.5M$16.5M
2012$72.4M$72.4M
2011$93.8M$93.8M
2010$223.2M$223.2M
2009$147.2M$147.2M
2008$96.0M$96.0M

Federal awards

Obligated amounts from USAspending.gov4, by calendar year, 2008–2026, for its registration. Obligations are what agencies committed, not always what was paid out. Contracts pay for goods and services; grants, loans and direct payments are assistance. Loans are charted at the face value of the loans listed here. An award’s amount below is its lifetime total, and some began before the years charted.

Largest contracts

  1. Aug 31, 2006$68.6M from Defense Contract Management Agency: Commanding general american science and engineeri middlesex tpke billerica ma billerica middlesex mass rdte/services-demo/valid services not5 To AMERICAN SCIENCE & ENGINEERING INC Award M6785406C5163
  2. Sep 28, 2018$63.6M from U.S. Customs and Border Protection: Lep6 To AMERICAN SCIENCE & ENGINEERING INC Award 70B03C18F00000721
  3. Sep 15, 2009$58.5M from Department of State: Installation of border security equipment on the gaza/egypt border.7 To AMERICAN SCIENCE & ENGINEERING INC Award SAQMMA09C0194
  4. Sep 12, 2006$56.6M from Department of the Army: Z backscatter van8 To AMERICAN SCIENCE & ENGINEERING INC Award W9124Q06F1250
  5. Jul 1, 2023$46.8M from U.S. Customs and Border Protection: Large and small scale non-intrusive equipment9 To AMERICAN SCIENCE & ENGINEERING INC Award 70B04C23F00000620