July 24, 2025

Two nuclear vendors combine as RSI buys Sigma Science

By ExchangeMonitor
RSI EnTech, based in Oak Ridge, Tenn., has acquired Albuquerque-based Sigma Science, another well-known small contractor with the Department of Energy nuclear complex, the companies announced recently.  RSI EnTech, which is part of Arctic Slope Regional Corporation…
Thank you for visiting
Weapons Complex Monitor!

You must be logged in as a subscriber to view this page.

Not a subscriber? Click here to sign up for a FREE six-week trial and receive access to this article, along with our entire archives.

LOGIN

Please contact [email protected] if you are unable to login.

Weapons Complex Monitor
Weapons Complex Monitor brings you first-hand reports from Washington, the major DOE sites and national laboratories, interviews with top-level officials, and predictions for upcoming moves that will affect your business strategy.
Subscribe
Read Issue
Partner Content
Social Feed

EM Publications Follow

Publications focused on cleanup of U.S. Cold War nuclear-weapon sites, active U.S. nuclear weapons programs and the commercial radioactive waste industry.

EMPublications
Retweet on Twitter EM Publications Retweeted
benjaminsweiss Benjamin S. Weiss @benjaminsweiss ·
10 Dec 2022

NEW: Via public records request, I’ve been able to confirm reporting today that a warrant has been issued for DOE deputy asst. secretary of spent fuel and waste disposition Sam Brinton for another luggage theft, this time at Las Vegas’s Harry Reid airport. (cc: @EMPublications)

Reply on Twitter 1601382361488592896 Retweet on Twitter 1601382361488592896 3 Like on Twitter 1601382361488592896 8 Twitter 1601382361488592896
empublications EM Publications @empublications ·
10 Dec 2022

DOE spent fuel lead Brinton accused of second luggage theft.



by @BenjaminSWeiss, confirming today's reports with warrant from Las Vegas Metro PD.

Reply on Twitter 1601413600475742213 Retweet on Twitter 1601413600475742213 1 Like on Twitter 1601413600475742213 Twitter 1601413600475742213
Retweet on Twitter EM Publications Retweeted
wippnews DOE WIPP @wippnews ·
6 Dec 2022

Waste has been Emplaced! 🚮

We have finally begun emplacing defense-related transuranic (TRU) waste in Panel 8 of #WIPP.

Read more about the waste emplacement here: https://wipp.energy.gov/wipp_news_20221123-2.asp

Reply on Twitter 1600139767999451137 Retweet on Twitter 1600139767999451137 5 Like on Twitter 1600139767999451137 6 Twitter 1600139767999451137
Load More