These monitoring centers are designated as TMA Five Diamond for May 1, 2023 – April 30, 2024.

a.p.i. Alarm Inc.
Denver, CO
www.apialarm.com
Full Service Monitoring
Designated since 01/2023

a.p.i. Alarm Inc.
Toronto, ON
www.apialarm.com
Full Service Monitoring
Designated since 01/2023

Acadian Monitoring Services, LLC
Lafayette, LA
www.acadianmonitoringservices.com
Wholesale Monitoring
Designated since 01/2005

ADT 
Knoxville, TN
www.adt.com
Full Service Monitoring
Designated since 4/2024

ADT Commercial LLC (formerly Protection One)
Irving, TX
www.adt.com
Full Service Monitoring
Designated since 10/2014

ADT by Telus
Calgary, AB
www.telus.com
Full Service & Wholesale Monitoring
Designated since 12/2020

ADT by Telus
Saint Leonard, QC
www.telus.com
Full Service
Designated since 08/2007

Affiliated Monitoring
Union, NJ
www.affiliated.com
Wholesale Monitoring
Designated since 09/2005

Affiliated Monitoring
Houston, TX
www.affiliated.com
Wholesale Monitoring
Designated since 05/2022

Alarm Detection Systems, Inc.
Aurora, IL
www.adsalarm.com
Full Service Monitoring
Designated since 08/2003

Alarm Detection Systems, Inc. (formerly Safe Systems)
Louisville, CO
www.adsalarm.com
Full Service Monitoring
Designated since 08/2004

Alarmco, Inc.
Las Vegas, NV
www.alarmco.com
Full Service Monitoring
Designated since 06/2006

Alarme Sentinelle / Sentinel Alarm
Montreal, QC
www.sentinelalarm.com
Full Service Monitoring – Canada
Designated since 12/2010

Alert 360
Tulsa, OK
www.alert360.com
Full Service Monitoring
Designated since 08/2018

Allied Universal Technology Services
Richardson, TX
www.aus.com
Full Service Monitoring
Designated since 07/2013

Allied Universal Technology Services
Wyoming, MI
www.aus.com
Full Service Monitoring
Designated since 06/2021

Allstate Security Industries, Inc
Amarillo, TX
www.allstatesecurity.com
Full Service Monitoring
Designated since 9/2006

American Alarm and Communications, Inc.
Arlington, MA
www.americanalarm.com
Full Service Monitoring
Designated since 04/2004

American Burglary & Fire
Fenton, MI
www.abfsecurity.com
Full Service Monitoring
Designated since 11/2005
Returning in 2023!

American Electric Power
Columbus, OH
www.aep.com
GSOC Monitoring
Designated since 11/2020

Amherst Alarm Inc.
Amherst, NY
www.amherstalarm.com
Full Service Monitoring
Designated since 03/2004

Audeamus DBA Corp
Kerman, CA
www.sebastiancorp.com
Full Service Monitoring
Designated since 01/2024

AvantGuard Monitoring Centers
Cedar City, UT
www.agmonitoring.com
Wholesale Monitoring
Designated since 05/2023
New in 2023!

AvantGuard Monitoring Centers
Ogden, UT
www.agmonitoring.com
Wholesale Monitoring
Designated since 01/2007

AvantGuard Monitoring Centers
Rexburg, ID
www.agmonitoring.com
Wholesale Monitoring
Designated since 08/2016

Barcom Security, Inc.
Swansea, IL
www.barcomsecurity.com
Full Service Monitoring
Designated since 11/2007

Bay Alarm Company
Concord, CA
www.bayalarm.com
Full Service Monitoring
Designated since 01/2006

Bell Canada
Toronto, ON
www.bell.ca/smart-home
Full Service Monitoring – Canada
Designated since 04/2015

Bell Canada
Winnipeg, MB
www.bell.ca/smart-home
Full Service Monitoring – Canada
Designated since 04/2020

Blackline Safety
Calgary, AB
www.blacklinesafety.com
Full Service Monitoring – Canada
Designated since 04/2018

Blue Ridge Monitoring (BRM)
Anderson, SC
www.blueridgemonitoring.com
Wholesale Monitoring
Designated since 07/2018

Brightspeed Security Systems (formerly CenturyLink Security)
Monroe, LA
www.brightspeedsecurity.biz
Full Service Monitoring
Designated since 02/2005

Brinks Home™ (formerly Monitronics International)
Farmers Branch, TX
www.brinkshome.com
Wholesale Monitoring
Designated since 02/2005

Centra-Larm Monitoring Inc.
Manchester, NH
www.centra-larm.com
Wholesale Monitoring
Designated since 06/2009

Central Monitoring and Dispatch, Inc.
Pittsburgh, PA
www.cmdispatch.com
Full Service Monitoring
Designated since 02/2022

Central Security Systems, Inc.
Fishers, IN
www.central-security.com
Full Service Monitoring
Designated since 08/2013
Returning in 2023!

Clearview Securities, Inc.
Knoxville, TN
www.clearviewtn.com
Full Service Monitoring
Designated since 05/2023
New in 2023!

Comporium SMA Solutions Inc.
Rock Hill, SC
www.comporiumsma.com
Full Service Monitoring
Designated since 04/2012

Cooperative Response Center, Inc. (CRC)
Austin, MN
www.crc.coop
Wholesale Monitoring
Designated since 03/2011

COPS Monitoring
Boca Raton, FL
www.copsmonitoring.com
Wholesale Monitoring
Designated since 04/2014

COPS Monitoring
Lewisville, TX
www.copsmonitoring.com
Wholesale Monitoring
Designated since 06/2014

COPS Monitoring
Williamstown, NJ
www.copsmonitoring.com
Wholesale Monitoring
Designated since 05/2014

CPI Security Systems
Charlotte, NC
www.cpisecurity.com
Full Service Monitoring
Designated since 08/2009

Damar Security Systems
Sarnia, ON
https://damarsecuritysystems.com/
Full Service Monitoring – Canada
Designated since 11/2012

DGA Security Systems, Inc.
New York, NY
www.DGA.com
Designated since 02/2005

DMC Security Services, Inc.
Midlothian, IL
www.dmsecurity.com
Designated since 09/2005

Dynamark Monitoring, Inc.
Hagerstown, MD
www.dynamarkmonitoring.com
Wholesale Monitoring
Designated since 02/2012

ECAM Secure
Long Beach, CA
www.ecamsecure.com
Full Service Monitoring
Designated since 06/2010
Returning in 2023!

Electronix Systems Central Station Alarms, Inc.
Huntington Station, NY
www.electronixsystems.com
Full Service Monitoring
Designated since 06/2005

Ellijay Telephone Company
Ellijay, GA
www.etcbusiness.com
Full Service Monitoring
Designated since 04/2015

Engineered Protection Systems, Inc. (EPS Security)
Grand Rapids, MI
www.epssecurity.com
Full Service Monitoring
Designated since 06/2004

ESC Central LLC
Birmingham, AL
www.epssecurity.com
Wholesale Monitoring
Designated since 12/10/2023

Federal Response Center
Springfield, MO
www.federalprotection.com
Wholesale Monitoring
Designated since 01/2006

Fire Monitoring of Canada, Inc.
St. Catharines, ON
www.fire-monitoring.com
Full Service Monitoring – Canada
Designated since 05/2009

Gillmore Security Systems Inc.
Cleveland, OH
www.gillmoresecurity.com
Full Service Monitoring
Designated since 01/2009

GM Security Technologies
San Juan, PR
www.gmsectec.com
Wholesale Monitoring
Designated since 10/2011

Guardian Alarm
Southfield, MI
www.guardianalarm.com
Full Service Monitoring
Designated since 03/2024

Guardian Protection Services Inc.
Butler, PA
www.guardianprotection.com
Full Service Monitoring
Designated since 06/2020

Guardian Protection Services Inc.
Warrendale, PA
www.guardianprotection.com
Full Service Monitoring
Designated since 09/2006

Holmes Security Systems
Fayetteville, NC
www.holmeselectricsecurity.com
Full Service Monitoring
Designated since 12/2017

Huronia Alarm & Fire Security, Inc.
Midland, ON
www.huroniaalarms.com
Full Service Monitoring – Canada
Designated since 06/2013

Interface Systems
Earth City, MO
www.interfacesystems.com
Full Service Monitoring
Designated since 08/2004

Interface Systems
Plano, TX
www.interfacesystems.com
Full Service Monitoring
Designated since 11/2012

iWatch Communications
Beaverton, OR
www.iwatchcomm.com
Full Service Monitoring
Designated since 01/2008

Kastle Systems
Falls Church, VA
www.kastle.com
Full Service Monitoring
Designated since 06/2014

Kroger Central Alarm Control
Portland, OR
www.kroger.com
GSOC
New in 2023!

Life Alert Emergency Response, Inc.
Encino, CA
www.lifealert.com
Full Service Monitoring
Designated since 11/2014

Life Safety Monitoring, LLC
Munhall, PA
www.mylifesafetymonitoring.com
Wholesale Monitoring
Designated since 01/2018

Metrodial Corporation, Inc.
Hicksville, NY
www.metrodial.com
Full Service Monitoring
Designated since 11/2004

National Monitoring Center
Irving, TX
www.nmccentral.com
Wholesale Monitoring
Designated since 06/2016

National Monitoring Center
Lake Forest, CA
www.nmccentral.com
Wholesale Monitoring
Designated since 06/2016

Nationwide Central Station Monitoring Corp.
Freeport, NY
www.nationwidedigital.com
Full Service Monitoring
Designated since 04/2007

NextEra Energy, Inc.
Juno Beach, FL
www.nexteraenergy.com
GSOC Monitoring
Designated since 12/2022

Northern911
Sudbury, ON
www.northern911.com
Full Service Monitoring – Canada
Designated since 05/2014

Northwest Alarm Monitoring
Seattle, WA
www.nwalarm.com
Wholesale Monitoring
Designated since 08/2024

Operational Intelligence Center
Indianapolis, IN
Full Service Monitoring
Designated since 01/2020

Paladin Technologies
Victoria, BC
www.paladinsecurity.com
Full Service Monitoring
Designated since 6/2016

Peak Alarm Company, Inc.
Salt Lake City, UT
www.peakalarm.com
Full Service Monitoring
Designated since 02/2006

Per Mar Security Services
Davenport, IA
www.permarsecurity.com
Full Service Monitoring
Designated since 06/2005

Pro-Vigil, Inc.
San Antonio, TX
www.pro-vigil.com
Full Service Monitoring
Designated since 01/2024

Quick Response
Cleveland, OH
www.quickresponse.net
Wholesale Monitoring
Designated since 10/2005

Retail Business Services (MD) (formerly Ahold USA)
Columbia, MD
www.aholddelhaize.com
Proprietary Monitoring
Designated since 02/2012

Securitas Electronic Security, Inc.
Honolulu, HI
www.securitases.com
Full Service Monitoring
Designated since 12/2003

Securitas Electronic Security, Inc.
Charlotte, NC
www.securitases.com
Full Service Monitoring
Designated since 03/2022

Securitas Electronic Security, Inc.
Uniontown, OH
www.securitases.com
Full Service Monitoring
Designated since 11/2003

Security Alarm Corporation
Port Charlotte, FL
www.securityalarmcorp.com
Full Service Monitoring
Designated since 06/2012

Security Central
Statesville, NC
www.security-Central.com
Wholesale Monitoring
Designated since 06/2016

Security Equipment, Inc. (SEI)
Omaha, NE
www.sei-security.com
Full Service Monitoring
Designated since 07/2004

SecurTek Monitoring Solutions, Inc.
Winnipeg, MB
www.securtek.com
Full Service Monitoring – Canada
Designated since 05/2022

SecurTek Monitoring Solutions, Inc.
Yorkton, SK
www.securtek.com
Full Service Monitoring – Canada
Designated since 05/2010

Siemens Industry, Inc.
Irving, TX
www.siemens.com
Full Service Monitoring
Designated since 03/2004

Sonitrol Great Lakes
Grand Blanc, MI
www.sonitrolverified.com
Full Service Monitoring
Designated since 02/2022

Statewide Central Station
Tampa, FL
www.statewidecs.com
Wholesale Monitoring
Designated since 5/2023
New in 2023!

Superior Central Station, Inc.
McAllen, TX
www.superiorcentral.com
Full Service Monitoring
Designated since 06/2007

Tech Systems Inc.
Buford, GA
www.techsystemsinc.com
Wholesale Monitoring
Designated since 12/2019

Telsco Security Systems
Edmonton, AB
www.telsco.com
Full Service Monitoring – CA
Designated since 02/2016

The Church of Jesus Christ of Latter-day Saints
Salt Lake City
http://churchofjesuschrist.org
GSOC Monitoring
Designated since 05/2012

The Las Colinas Association
Irving, TX
www.lascolinas.org
GSOC Monitoring
Designated since 11/2021

The Watchlight Corporation
El Cajon, CA
www.watchlight.com
Full Service Monitoring
Designated since 03/2014

Titan Protection
Overland Park, KS
www.tpcsecurity.com
Full Service & Wholesale Monitoring
Designated since 10/2022

U.S. Monitoring, Inc.
Oklahoma City, OK
www.usm-ok.com
Wholesale Monitoring
Designated since 08/2018

United Central Control
San Antonio, TX
www.teamucc.com
Wholesale Monitoring
Designated since 08/2004

Universal Atlantic Systems (UAS)
Paoli, PA
www.uas.com
Full Service Monitoring
Designated since 04/2004

United Monitoring Services, Inc.
Columbus, GA
www.ums247.com
Full Service Monitoring
Designated since 04/2004

Valley Security and Alarm
Fresno, CA
www.valleysecurityandalarm.com
Full Service Monitoring
Designated since 10/2017

Vancouver Fire & Security
Richmond, BC
www.radiussecurity.ca
Wholesale Monitoring – Canada
Designated since 07/2012

Vector (East)
Plymouth Meeting, PA
www.vectorsecurity.com
Full Service Monitoring
Designated since 08/2003

Vector (West)
Warrendale, PA
www.vectorsecurity.com
Full Service Monitoring
Designated since 08/2003

Vigilante Security, Inc.
Troy, MI
www.vigilantesecurity.com
Full Service Monitoring
Designated since 05/2016

Vivint Inc. – MN
Eagan, MN
www.vivint.com
Full Service Monitoring
Designated since 03/2014

Vivint Inc. – UT
Provo, UT
www.vivint.com
Full Service Monitoring
Designated since 03/2014

Viiz Communications 
Anniston, AL
www.viiz.com
Video Monitoring
Designated since 10/2024

Vyanet Operating Group, Inc.
Bend, OR
www.vyanet.com
Full Service Monitoring
Designated since 12/2014

Washington Alarm
Seattle, WA
www.washingtonalarm.com
Full Service Monitoring
Designated since 12/2006

Wayne Alarm Systems, Inc.
Lynn, MA
www.waynealarm.com
Full Service Monitoring
Designated since 11/2003

Wegmans Food Markets, Inc.
Rochester, NY
www.wegmans.com
GSOC Monitoring
Designated since 04/2008

WH International Response Center
Rockford, MN
www.whirc.com
Wholesale Monitoring
Designated since 12/2004