The Peoria Historical Society maintains a program to identify and honor central Illinois business, professional, and community organizations with a 100-year record of uninterrupted operation.  The honorees include for-profit and not-for-profit organizations, political entities, partnerships, corporations and branches of similar organizations with headquarters elsewhere but which have maintained uninterrupted operations in the Peoria are for at least 100 years.

The purpose of the Centenarian program is to recognize the strength and durability of the people of Peoria and the enterprises in which they have engaged as employers and employees and thus have contributed to the growth and stature of the city and service to its citizens.  We congratulate the following Peoria Historical Society Centenarians:

1825	County of Peoria
1837	Toledo, Peoria and Western Railroad
1840	Leisy Brewing Company
1840	Jubilee College State Historical Site
1842	Issac Walker Company
1845	City of Peoria
1847	Bourland and Company
1848	Peoria Medical Society
1848	Bel-Wood Nursing Home
1850	Cremer-Williamson, Roswell Bills Agency
1852	Weber Funeral Home
1853	Central Illinois Light Company
1854	John Merkle and Sons
1855	Peoria Public Schools, District 150
1856	Ideal Troy
1856	Triebel Monument Company
1857	A. Lucas and Sons
1859	Newman and Ullman, Inc.
1859	Hagerty Bros.
1861	Callendar and Company
1863	Commerce Bank
1864	Northwestern Mutual Life Insurance Company
1865	Westervelt, Johnson, Nicoll and Keller
1866	The Children's Home Association
1866	Meyer Heating and Air Conditioning
1867	Trefzger's Bakery
1869	Illinois American Water Company
1870	Peoria Board of Trade
1871	Summerfield Hardware
1872	Lutheran Cemetery
1873	First Financial Bank
1873	Hebrew Cemetery
1873	George Rothan Company
1875	Aimen's Marking Device
1876	St. Francis Medical Center
1879	Couch and Heyle
1879	Greater Peoria Family YMCA
1889	Edward Hine
1880	Peoria and Pekin Union Railway
1880	Szold's Inc.
1881	John Hancock Central Illinois Agency
1882	Proctor Hospital
1883	Kavanaugh, Scully, Sudow, White and Frederick, P.C.
1884	Nailon Corp.
1884	Wilton Mortuary, Inc.
1886	Salvation Army
1886	Peoria Women's Club
1887	Brass Foundry Company
1888	Baymiller and Radley
1888	Keystone Steel and Wire Company
1889	P.A. Bergner and Company
1890	Commercial National Realty Company
1890	Dooley Brothers
1890	Stein Hardware and Supply Company
1891	Bell Clothing and Shoe House
1891	Wahlfeld's
1892	St. Joseph's Home of Peoria
1892	Crittenton Care and Counseling
1892	Peoria Tent and Awning Company
1892	Illinois Cycle and Fitness
1893	Cummerford-Endsley Memorial Home
1893	Travelers Protection Association
1893	YWCA of Peoria
1894	Pleasure Driveway and Park District
1894	Creve Coeur Club of Peoria
1894	Catholic Women's League
1895	Pitsch's Sausage Shop
1896	Dixon Fisheries
1896	E.M. Smith
1896	Neighborhood House Association
1896	Labor Paper
1896	Peoria Chapter of the National Society of the Daughters of the American Revolution
1897	Bradley University
1897	Peoria Country Club
1898	Peoria Symphony Orchestra
1898	Dunlap Bank
1898	Village of Peoria Heights
1899	International Brotherhood of Electrical Workers Local 34
1900	Methodist Medical Center
1900	Carpenters Local 644
1900	Counseling and Family Services
1901	As You Like It Club
1902	The Orpheus Club
1902	Pekin Park District
1902	Uplands Neighborhood
1903	Visiting Nurse Association
1903	Morton Buildings
1904	Grainland Cooperative
1905	Amalgamated Transit Union Local 416
1905	Aupperle Construction Company
1905	Peoria Women's Civic Federation
1906	Proctor Endowment Home
1907	Peoria County Old Settlers' Association (1967)
1907	The Illinois Valley Yacht and Canoe Club
1908	Peoria Flag and Decorating