NES is a safety company that specializes in traffic control and more importantly, assumes the responsibility and liability for your crews work zone. Over the past 12 years we have listened to our clients wants and we have tailored our service to fit their needs.

Green Mountain Flagging LLC (GMF) has been delivering superior, "best-in-safety" traffic control solutions throughout New England since 2004. We have recently opened a new location in Hermon, Maine. GMF is the leader in providing flexible traffic control solutions that meet your safety needs within your budget. Without exception our traffic control technicians are ATSSA and Vermont Work Zone certified; most are First Aide & CPR trained and certified as well. We pride ourselves on being professional and on-time so that our client's crews aren't standing around waiting for flaggers to protect the work zone. All GMF crews are fully equipped and come complete with ALL you need for a safe work zone that is OSHA and VOSHA compliant.