GMCS on Facebook

2 months ago

We hope you are having a great 4th of July with friends and family! If you see GMCS staff out working at your local fireworks, or parade be sure to say hello! ... See MoreSee Less

3 months ago


Come on down to 25 Wentworth Drive, Williston, VT!

We will be holding a job fair until 5pm TODAY!

Come learn more about a great job at GMCS, enjoy some snacks, and meet our great team!

Same day hiring for qualified candidates!
... See MoreSee Less

3 months ago

We here at GMCS would like to take a moment on this Memorial Day to remember all those who have made the ultimate sacrifice for our freedoms. ... See MoreSee Less

3 months ago

Job Fair - May 30th - 9am to 5pm
25 Wentworth Drive, Williston, VT

Green Mountain Flagging and GMCS will be hiring traffic control and security professionals on site.

Job fair open to the public; snacks and drinks available all day.

Come by to learn more or join our
... See MoreSee Less

Security & Crowd Management SpecialistsTM!

For nearly two decades we have specialized in providing unarmed, physical security solutions to high-profile special events, venues, and educational institutions. GMCS has a successful reputation for helping clients create an exceptional experience for their guests, and for providing added value to event management. We believe that our training and our ongoing coaching and supervision are the most important ingredients to why GMCS provides the best service in the industry. GMCS provides safety and security solutions for more than a thousand events annually and is setting the standard for quality security professionals.

Upcoming Events

GMCS Subsidiaries:


The Northeast Safety & Security Training Academy (NESSTA) is the leading resource for safety and security training. Founded in 2012, NESSTA’s goal is to help individuals and corporations find quality safety and security training solutions.

Green Mountain Flagging

Since 2004, Green Mountain Flagging, LLC (GMF) has been providing total traffic control management solutions. Our services include, but are not limited to: trained and certified flagging crews; equipment rentals; traffic control plan writing; work zone safety consulting; and training.

↑ Top of Page