American Security & Investigations has provided security and investigative services throughout the upper midwest since 1959. We are now the largest independently owned, full-service security agency in the region, providing both technology and security personnel solutions to clients in the commercial & residential real estate, healthcare, education, corporate complex, manufacturing, industrial and government verticals.

Our uniformed security division provides highly trained security professionals to a broad range of facilities. We uniquely design and tailor each of our clients'​ security programs and security officer’s competencies to address your specific needs. Additionally, our 1,200+ employees enable us to provide for emergency staffing and temporary coverage or special events in all of the markets we serve.

Beyond our static on-site security officers, we have the ability to remotely manage video and alarm response technologies through our own internal SOC (Security Operations Center). Through our vetted manufacturing partners, we can advise you as your security partner, helping implement all video and access control projects.

Our investigative services division can provide a full range of investigative services including; background checks and pre-employment screening, surveillance, legal assistance, risk management, workman’s compensation investigations and workplace safety investigations.

As a part of the Marsden Holdings umbrella, ASI belongs to a larger network of total Facilities Management Providers. As such, we may be able to provide you and your facility with operational and budgetary efficiencies by bundling your janitorial, HVAC, security and other services together as one.

Operating out of our corporate headquarters in Saint Paul, Minnesota, American Security & Investigations currently has offices in Madison & Milwaukee, WI - Des Moines, Iowa & Omaha, Nebraska - Phoenix, Arizona.

Commercial Real Estate

Education

Government

Health Care

Security

American Security & Investigations

American Security & Investigations' headquarters in St. Paul, MN, United States

Frank Flores

Alex Chorewycz

Jacob Hughes

Timothy Bloemker

Matthew Rice

Amanda Michels

Nate Zoellner

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Alex Chorewycz

Nate Zoellner

Chris Kenealy

T.j. Williams Msis

Joel Thurber

Anton Petranovich (Tony)

Antwan Boone

Bashi Farah

Candy Wright

Eric Powell

Matt Thorstad

Ross G.

Serge Mutombo

Amanda Michels

Angel Swartz

Angie Bredemus

Tim Alber

Brent Kraabel

Joe Gillen

Lisa Cole

Svetlana Traun

Matthew Rice

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