Member companies are ordered by zip code.
| Company Name | Street | Suite | City | ST | Zip | Country | Phone | Fax | Website | |
| Spaulding Security Inc | 64 Old South Rd | South Berwick | ME | 03908 | (207) 384-2420 | (207) 384-2420 | ||||
| Digital Sky | PO Box 757 | Biddeford | ME | 04005 | (207) 571-8156 | (207) 571-8599 | www.digitalsky.us.com | |||
| Maine State Security Services | 98 Company Rd | Dayton | ME | 04005 | (207) 247-4371 | (207) 929-8484 | www.mainestatesecurity.com | |||
| ADT Security Services Inc - Scarborough ME | 15 Pleasant Hill Rd | Scarborough | ME | 04070 | (800) 238-2727 | www.adt.com | ||||
| CU Security Systems Inc | PO Box 1105 | Sanford | ME | 04073 | (207) 490-2526 | (207) 490-3556 | www.cusecuritiy.com | |||
| Cunningham Security Systems Inc | 10 Princes Point Rd | Yarmouth | ME | 04096 | (207) 846-3350 | (207) 846-6080 | www.cunninghamsecurity.com | |||
| Protection One Alarm Monitoring Inc - Portland ME | 10 Manuel Dr | Portland | ME | 04103 | (207) 772-1171 | (207) 772-7355 | ||||
| Protection Professionals | 217 Read St | Portland | ME | 04103 | (207) 775-5755 | (207) 775-1895 | ||||
| Northstar Protection LLC | 7 Calvin Ct | Brewer | ME | 04412 | (207) 989-1006 | (800) 419-2833 | ||||
| Northeast Security Systems Inc | PO Box 1556 | Wiscasset | ME | 04578 | (207) 882-9531 | (207) 882-9562 | www.northeast-security.com | |||
| Seacoast Security Inc | PO Box A | West Rockport | ME | 04865 |