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Top Security Company
Per Mar consistently receives industry recognition for depth and breadth of products and services, as well as our best-in-class customer service.
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Community Focused
Since 2001, we have donated more than $1.6 million through the Per Mar Charity Fund to community organizations within our service areas.
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Highly Trained Experts
From technicians to monitoring agents, our team is highly trained in securing homes and businesses just like yours.
About Us
Security you can trust since 1953
Led by the third generation of the Duffy family, Per Mar Security protects families and businesses with leading technology and a dedicated team.
Per Mar provides our customers with reliable security backed by the best customer service in the industry. We offer a full range of services, from home security and business security systems to in-person security guard services and corporate investigations. Keep up on the latest information and blogs from Per Mar Security Services!
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Giving Back
See HowPer Mar believes in giving back to the communities we serve by volunteering and giving monetary support to local organizations.
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History of Per Mar
See TimelinePer Mar was founded by John and Eleanor Duffy in Davenport, Iowa in 1953. We are now the largest family-owned, full-service security company in the Midwest.
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Locations
See LocationsWe are ready to secure your home or business. Find your nearest branch location to learn more!
ACQUISITIONS
2020 – Present
Walsh Door & Security
Des Moines, IA
April 1, 2020
GT Fire & Security, Inc.
Grand Island, NE
April 1, 2020
Cedar River Software LLC
Cedar Rapids, IA
April 23, 2020
Martin Security
Valparaiso/Griffith, IN
August 25, 2020
TED Systems, LLC
Lenexa/Kansas City, MO
October 1, 2020
Monument Electronics
Portage/Griffith, IN
November 19, 2020
Floyd Total Security
Bloomington/Twin Cities, MN
December 1, 2020
Armor Security
Minneapolis, MN
May 25, 2021
Jo Carroll Energy
Davenport, IA
December 1, 2021
Dream Systems IT
Rhinelander, WI
July 21, 2022
SPI
Butler, WI
October 1, 2013
Walser Electric
Fitchburg, WI
November 1, 2022
Herrick Services, Inc
Waverly, NE
July 1, 2023
Homeguard
Des Moines, IA
March 1, 2023
Nightwatch
Long Grove, IA
May 25, 2023
Wisconsin Security Systems
Wausau, WI
June 1, 2023
1st Class Security
Sergeant Bluff, IA
May 6, 2024
Global Security Group
Oakbrook Terrace, IL
December 1, 2023
Safety Systems
Jackson, MI
August 1, 2024
Accu-com
Oshkosh, WI
December 19, 2024
2010 – 2019
Indiana Security Systems, Inc
South Bend, IN
September 1, 2010
Digital Alarms
South Bend, IN
December 1, 2010
Guard Services
Peoria, IL
January 1, 2011
Employers Security
South Bend, IN
May 27, 2011
Streff Electric
Cedar Rapids, IA
October 31, 2012
OEI
Wausau, WI
December 1, 2012
Traum Security
Sioux City/Des Moines, IA
August 1, 2013
S & L Services, Inc
Walkerton/South Bend, IN
October 1, 2013
Centech Security Systems, Inc
Kouts/South Bend, IN
November 1, 2013
Alarm Specialist
Freeport/Rockford, IL
June 17, 2014
Rockford Tech
Rockford, IL
December 1, 2014
TruStop
Oshkosh/Wausau, WI
April 1, 2015
Selk Electronics
Chili/Wausau, WI
June 10, 2015
Security Alarm Systems
Hobart/South Bend, IN
August 1, 2015
KIPPS Investigations & Security LLC
Stillwater/Twin Cities, MN
September 27, 2015
Northern Safety & Security
Bemidji, MN
October 1, 2015
Northern Wisconsin Security & Sound
Arbor Vitae/Minocqua, WI
April 1, 2016
Neighborhood Patrol, Inc
Grimes/Des Moines, IA
July 1, 2016
Electric Specialties
Omaha, NE
August 1, 2016
Best Alarm
Milton/Madison, WI
May 16, 2017
Southlake Security Systems, Inc
Griffith/South Bend, IN
June 1, 2017
Realtek
Minocqua, WI
July 21, 2017
Assured Security Agency
Elkhart/South Bend, IN
September 1, 2017
ABC Burglar & Fire Alarm Corp.
Gary/Griffith, IN
November 1, 2018
Barone Security Solutions
Omaha, NE
December 18, 2018
Polk Burnett Security Services, Inc.
Eau Claire, WI
December 18, 2018
All Channel Inc
Madison, WI
January 15, 2019
American Pride Security Services
Bloomingdale/Chicago, IL
April 1, 2019
Calhoun County REC
Rockwell City, IA
June 1, 2019
Stearns Sound & Security
Waupaca/Wausau, WI
June 1, 2019
Northern Indiana Alarm Company
Merrillville/Griffith, IN
August 1, 2019
NECO, Inc.
Lincoln, NE
October 1, 2019
2000 – 2009
Underhoods
Davenport, IA
February 1, 2000
Complete Security
Wausau, WI
February 4, 2000
Mid-America, Triple A
Davenport, IA
July 1, 2000
Fenske Security Inc
Madison, WI
December 20, 2000
Rock River Service
Rockford, IL
February 1, 2001
SecurityPlus, Inc
Ft. Dodge/Des Moines, IA
November 1, 2001
Arrowhead
Duluth, MN
February 1, 2002
Nighthawk Security
Cedar Rapids, IA
August 15, 2003
Feel Safe
Des Moines, IA
December 1, 2003
American Security
Des Moines, IA
May 17, 2004
Norred Security
Green Bay/Madison/Wausau, WI
August 1, 2004
Lee Security
Des Moines, IA
December 20, 2004
Associated Security
Madison, WI
February 1, 2006
CentralCom
Wausau, WI
March 1, 2006
Olson Security
Maquoketa/Quad Cities, IA
October 1, 2006
Frederick’s Electronics
Hibbings/Duluth, MN
February 1, 2008
A-1 Security
Cedar Rapids, IA
May 1, 2008
Fast Alert Alarm
Eau Claire, WI
July 1, 2008
Alarm Co North
Wausau, WI
October 15, 2009
1990 – 1999
Foremost Security
Beloit/Rockford, IL
March 1, 1990
Bolt Security Corp
Ft Dodge/Des Moines, IA
April 1, 1990
Midwest Investors Inc (Knight Co.)
Burlington/Quad Cities, IA
June 1, 1990
Security Consultants
Des Moines, IA
September 1, 1990
O.S.S. Security
Dubuque, IA
March 1, 1991
Anderson Alarms
Ft Dodge/Des Moines, IA
April 1, 1991
Monaco Enterprises
Wisconsin-Minnesota
July 1, 1991
Guardian Alarm
Eau Claire, WI
February 1, 1992
M J Potterbaum
Dubuque, IA
September 1, 1992
Lola Focht
Des Moines, IA
October 1, 1992
O’Hara Security
Des Moines, IA
April 1, 1992
Select Security
Madison, WI
September 7, 1994
Tru-Lock & Security
Eau Claire, WI
October 3, 1994
United Security Association
La Crosse, WI
September 1, 1996
Rockford Alarm Company
Rockford, IL
October 1, 1996
Midland Security
Cedar Rapids, IA
August 1, 1997
Electroalarm
Janesville, WI
October 10, 1997
A-1 Security
Cedar Rapids, IA
December 1, 1997
Midwest Alarm Services
Des Moines, IA
January 1, 1998
Jessman Security
Davenport, IA
August 1, 1999
Pre-1990
Alarms by PDA
Des Moines
October 1, 1975
Mountain Security Services
Denver, CO
September 1, 1977
J. F. Bell
Phoenix, AZ
December 1, 1977
Night Watch Guard and Patrol
Rockford, IL
June 30, 1978
AAA Guard
Des Moines, IA
May 1, 1981
Karon Company
Quad Cities, IA
September 1, 1981
Magnum Security
Tucson, AZ
December 7, 1981
Quint City Safe, Lock and Alarm
Rock Island, IL
January 1, 1986
L & M Investigations
Des Moines, IA
February 1, 1987
Westmar Security Co
Des Moines, IA
June 1, 1987
Iowa City Security
Iowa City, IA
January 1, 1988
Surveillance Center
Quad Cities, IA
January 1, 1988
Merchants Police and Alarm
Rockford, IL
June 1, 1988
Guardian Alarm Systems, Inc.
Des Moines, IA
August 1, 1988
Central Iowa Security Systems
Des Moines, IA
August 1, 1988
IMR Systems, LTD
Des Moines, IA
May 1, 1989