Why Whelan?

A Timeline of Our History

The following timeline provides just a glimpse of our historical growth and development. Click on a year below for more information about Whelan Security during that time period.

  • Whelan Named Top Employer for Military for 2016

    For the fifth consecutive year, Whelan Security is named to the CivilianJobs.com list of Most Valuable Employers (MVE) for Military.

  • Jason Gonzalez | Whelan Security

    Jason Gonzalez, current Vice President, joins Whelan Security.

  • 2014-(civilianjobs)

    For the third consecutive year, Whelan Security is named to the CivilianJobs.com list of Most Valuable Employers (MVE) for Military.

  • 2014-Luke-Hutsell-Whelan-Security

    Luke Hutsell, CPP, SPHR, current Vice President, joins Whelan Security.

  • 2014 -(robert Langrel)

    Robert Langrel, current Vice President, joins Whelan Security.

  • 2014 - (SteveSomers)

    Steve Somers, CPP, CHS-V, current Vice President, joins Whelan Security.

  • 2013-(civilianjobs)

    For the second consecutive year, Whelan Security is named to the CivilianJobs.com list of Most Valuable Employers (MVE) for Military.

  • Jack Serpas | Whelan Security

    Jack Serpas, CPP, current Vice President, joins Whelan Security.

  • 2013-(Inc5000)

    For the sixth consecutive year, Whelan Security is named to the Inc. 5000 list of America’s Fastest Growing Companies.

  • 2012-(civilianjobs)

    Whelan Security is named to the CivilianJobs.com list of Most Valuable Employers (MVE) for Military.

  • 2012 - 1 (Inc)

    For the fifth consecutive year, Whelan Security is named to the Inc. 5000 list of America’s Fastest Growing Companies.

  • 2013 - 2 (Top 10)

    Whelan Security is ranked within the Top 10 contract security companies operating within the United States.

  • 2011 - 1 (Inc)

    For the fourth consecutive year, Whelan Security is named to the Inc. 5000 list of America’s Fastest Growing Companies.

  • 2011 - 1 (Guy Stiebing)

    Guy Stiebing, current Senior Vice President, joins Whelan Security.

  • whelan-security-begins-operating-in-georgia

    Whelan Security begins operating in Georgia.

  • whelan-security-begins-operating-in-florida

    Whelan Security begins operating in Florida.

  • whelan-security-begins-operating-in-nevada

    Whelan Security begins operating in Nevada.

  • 2010 - 1 (Inc)

    For the third consecutive year, Whelan Security is named to the Inc. 5000 list of America’s Fastest Growing Companies.

  • whelan-security-begins-operating-in-oregon

    Whelan Security begins operating in Oregon.

  • 2010 - 3 (Washington)

    Whelan Security begins operating in Washington.

  • 2010 - 2 (Ohio)

    Whelan Security begins operating in Ohio.

  • 2010 - 1 (Kentucky)

    Whelan Security begins operating in Kentucky.

  • 2009 - 1 (Inc)

    For the second consecutive year, Whelan Security is named to the Inc. 5000 list of America’s Fastest Growing Companies.

  • 2009 - 4 (Mike Basler)

    Michael Basler, current Chief Financial Officer and Senior Vice President – Finance & Administration, joins Whelan Security.

  • 2009-event-services

    Whelan Security launches Special Services Division.

  • 2009 - 3 (Arizona)

    Whelan Security opens office in Arizona.

  • 2009 - 2 (California)

    Whelan Security opens offices in California.

  • 2008 - 1 (Inc)

    Whelan Security is named to the Inc. 5000 list of America’s Fastest Growing Companies.

  • 2008 - 1 (Top 15)

    Whelan Security is ranked within the Top 15 contract security companies operating within the United States.

  • Mark Porterfield | Whelan Security

    Mark Porterfield, CPP, CHS-III, current Senior Vice President of Human Capital & Field Support Services, joins Whelan Security.

  • 2008 - 2 (Wisconsin)

    Whelan Security opens office in Wisconsin.

  • 2008-pennsylvania

    Whelan Security begins operating in Pennsylvania.

  • 2007 - 5 (Denver)

    Whelan Security opens office in Denver.

  • Detroit, Michigan

    Whelan Security opens office in Detroit.

  • Albuquerque skyline and mountains

    Whelan Security opens office in Albuquerque.

  • 2007-oklahoma

    Whelan Security begins operating in Tulsa and Oklahoma City.

  • 2007-little-rock

    Whelan Security opens office in Little Rock.

  • top20

    Whelan Security is ranked within the Top 20 contract security companies operating in the United States.

  • 2005-tsa

    Whelan Security is approved by the Department of Homeland Security and TSA as a qualified vendor in the Screening Partnership Program.

  • whelan-security-begins-operating-in-iowa

    Whelan Security begins operating in Iowa.

  • whelan-security-begins-operating-in-tennessee

    Whelan Security begins operating in Tennessee.

  • 2006 - 1 (Minneapolis)

    Whelan Security opens office in Minneapolis-St Paul.

  • 2005 - 2 (Mississippi)

    Whelan Security begins operating in Mississippi.

  • 2005-whelan-sfi

    Whelan Security partners with Security Forces, Inc. and invests in the formation of Whelan SFI, a joint venture company operating in the Mid-Atlantic. Whelan SFI opens an office in Washington DC and begins operating in Washington DC, Maryland, Delaware, and Northern Virginia.

  • 2004 - 1 (Chicago)

    Whelan Security opens office in Chicago.

  • 1989 - 1 (Greg T)

    Greg Twardowski is appointed President of Whelan Security.

  • 2003 - 2 (Prentice Robertson)

    Prentice Robertson, Principal and Chief Operating Officer, joins Whelan Security.

  • 2003-truth-report

    Whelan Security introduces the Truth Report and Whelan Warranty Program.

  • 2001 - 1 (James Schwartz)

    James Schwartz, current Vice President, joins Whelan Security.

  • 2000 - 1 (Topeka)

    Whelan Security begins operating in Wichita and Topeka, Kansas.

  • 1997-nsg

    Whelan Security invests in the establishment of TransNational Security Group LLC, a national partnership of leading regional security companies combined to form one of the top five contract security companies operating in the United States.

  • 1993-houston

    Whelan Security opens office in Houston.

  • 1993 - 3 (Baton Rouge)

    Whelan Security opens office in Baton Rouge.

  • 1993-dallas

    Whelan Security opens office in Dallas.

  • Dan Twardowski | Whelan Security

    Dan Twardowski, current Principal and Vice President, joins Whelan Security.

  • 1990 - 1 (Kansas City)

    Whelan Security opens office in Kansas City.

  • 1989 - 1 (Greg T)

    Greg Twardowski, current President, joins Whelan Security.

  • 1978 - 1 (Pat T)

    Patrick Twardowski is elected President of Whelan Security.

  • 1969 - 1 (Pat T)

    Patrick Twardowski joins Whelan Security at the request of Mrs. Whelan upon the death of James T. Whelan. Twardowski invests in the company and assumes management responsibility.

  • Image

    Whelan Security is founded in St. Louis, Missouri by James T. Whelan, uncle of current Chairman, Patrick Twardowski.