Hence, more than ever, expert supervision is needed to provide the consumer with reliable kosher certification. The Union of Orthodox Jewish Congregations, The o-u (whose symbol is the letter "u" inside the letter "o") is the largest kashrut supervising organization in the United States.  The Orthodox Union is a non-profit service organization, that has been a leader in the field of kosher supervision, for more than 70 years.  Through their efforts, a range of products spanning the gamut of human needs, became accessible to the kosher consumer around the world.

The chart below displays a partial list of the Kashrut Supervising Authorities around the globe
Kosher Supervision Authorities - Kosher Symbols - USA
Kosher Supervision Authorities - Kosher Symbols - Israel
Kosher Supervision Authorities - Kosher Symbols - Canada
Kosher Supervision Authorities - Kosher Symbols - France
Kosher Supervision Authorities - Kosher Symbols - Great Britain/United Kingdom
Kosher Supervision Authorities - Kosher Symbols - Hong Kong
 

United States of America - Major Organizations
	The Union of Orthodox Jewish Congregations 333 Seventh Avenue New York, New York 10001 (212) 563-4000 Fax - (212) 564-9058 Rabbi Menachem Genack, Rabbinic Administrator
	The Organized Kashrus Laboratories 391 Troy Avenue Brooklyn, NY  11213   (718)756-7500 Fax - (718) 756-7503 Rabbi Don Yoel Levy, Kashrus Administrator
	KOF-K Kosher Supervision 201 The Plaza, Teaneck, NJ  07666  (201) 837-0500 Fax - (201) 837-0126 Rabbi Ahron Felder, Director of Kosher Standards
United States of America - Alphabetical by State
	Vaad Hakashrus of N CA, Kosher Food Council of Northern CA 2520 Warring St., Berkeley, California 94704 Rabbi L. Zirkind (510) 380-2295 1227 East Shepherd Ave, Fresno, CA, 93720 (559)-351-2222, Fax (559)-435-0554
	Orange-K, Rabbinical Council of Orange County & Long Beach 3505 Lime Avenue, Long Beach, California 90807. Rabbi Binyomin Fejnland Tel/Fax: (562) 426-4894
	THE HEART "K" Kehila Kosher, Igud Hakashrus of L.A. 186 N. Citrus Ave, Los Angeles, California. 90036 Rabbi Avraham Teichman 213-935-8383, 213-965-9020
	Kosher Supervision of America P.O. Box 35721, Los Angeles, California  90035  Rabbi Binyomin Lisbon, Kashrus Administrator (310) 282-0444 Fax - (310) 282-0505
	The "RCC" Community Kashrus Division of the Rabbinical Council of California                       Rabbi Nissim Davidi & Rabbi Avromon Union - Rabbinic Admin 617 South Olive St. #515,Los Angeles, California 90014 Phone: (213) 489-8080; Fax: (213) 489-8077
	Vaad Hakashrus of Northern California Sacramento Rabbinical Council, Sacramento, California Rabbi Yaron Z. Buki (916) 267-1821
	Sacramento Kosher Sacramento Rabbinical Council, Sacramento, California Rabbi Yaron Z. Buki (916) 267-1821
	Vaad Kashruth Delaware Washington Blvd & Torah Way, Wilmington, DE 19802 Rabbi Steven Saks, Rav HaMachshir (302)762-2705, (302)762-3236 Fax
	Tri-Sulom, Beis Medrash Kehilas Yaakov 295 S. Locust St, Denver, Colorado 80224 Rabbi Mordechai Twersky 303-377-1200, 303-355-6010
	The Vaad Hakashrus of Denver  1350 Vrain Street, Denver, Colorado  80204  Rabbi Y Feldberger, Rabbinic Administrator (303) 595-9349 Fax - (303) 629-5159
	Florida K and Florida Kashrus Services 642 Green Meadow Avenue, Maitland, Florida 32751 Rabbi Sholom B. Dubov (407) 644-2500
	Diamond K, Kosher Supervisory Srvc. 1425 SW 85th Ave, Miami, Florida 33144 Rabbi Zevulun Glixman 305-264-6488
	Chai Kosher Consultation 22040 Montebello Dr Boca Raton, Florida Rabbi Yisroel FInman (305) 304-0290
	KOSHER MIAMI, The Vaad HaKashrus of Miami-Dade PO Box 403225, Miami, FL 33140-1225 (786) 390-6620, Fax: (305) 437-8107
	KOSHER DAIRY MIAMI (Non-Chalav Yisrael) The Vaad HaKashrus of Miami-Dade PO Box 403225, Miami, FL 33140-1225 (786) 390-6620, Fax: (305) 437-8107
	Orthodox Rabbinical Board of Broward and Palm Beach Counties (ORB) POB 640326 Miami, FL 33164-032 Rabbi Pesach Weitz (305) 653-2110
	Orthodox Rabbinate of Dade (ORD) 1870 NE 187th St North Miami Beach, FL 33179 (305) 931-6204
	VAAD HARABONIM OF FLORIDA Orthodox Rabbinical Council of South Florida; Miami, Florida Rabbi Growner (305) 931-6204
	Atlanta Kashruth Commission  1855 La Vista Road, Atlanta, Georgia 30329   Rabbi Ilan Feldman, Dean (404) 634-4063  Fax - (404) 320-7912
	Chicago Rabbinical Council  3525 W. Peterson Avenue, Suite #315  Chicago, Illinois  60659 Rabbi Dovid Jenkins, Kashruth Administrator Phone: (773) 588-1600 Fax - (773) 588-2141
	Mid-Atlantic Orthodox Rabbis 1401 Arcola Ave, Silver Spring, Maryland 20902 Rabbi Herzel Kranz 301-649-2799
	Star-D 11 Warren Road Baltimore, Maryland  21208-5234  Rabbi Moshe Heinemann, Rabbinic Admin, Rabbi Boruch Beyer (410) 484-4110 Fax - (410) 653-9294
	Star-K Kosher Certification 11 Warren Road Baltimore, Maryland  21208-5234  Rabbi Moshe Heinemann, Rabbinic Administrator (410) 484-4110 Fax - (410) 653-9294
	New England Kashrus LeMehadrin 75 Wallingford Rd., Brighton, Massachusetts  02135 Rabbi Aaron Hamaoui 617-789-4343
	Vaad Hakashrus of Massachusetts  177 Tremont Street  Boston, Massachusetts 02111  Rabbi Abraham Halfinger, Rabbinic Administrator (617) 426-2139 Fax - (617) 426-6268
	Vaad Hair of Worcester 95 Grand St., Worcester, Massachusetts 01610 Rabbi Reuven Fischer 508-752-0904, 508-799-7413
	The "K-COR"Vaad Harabonim of Greater Detroit and Merkaz; Rabbi Beryl Broyde, Rabbi Joseph Krupnik Detroit, MIchigan (810) 559-5005
	Blue Ribbon Kosher 2716 Kipling Avenue S, Minneapolis, Minnesota 55416 Rabbi Baruch Clein, Kashrus (612) 925-3651, (612)924-3734
	Minnesota Kosher 2645 Kipling Avenue, Minneapolis, Minnesota 55426 (952) 922-0522
	United Mehadrin Kosher (UMK) Rabbinic Administrator of Upper Midwest 1001 Prior Avenue South St. Paul, Minnesota 55116 Rabbi Asher Zeilingold (612) 690-2137, Phone: 651/698-8300 Fax: 651/690-1144
	Vaad Hoeir of Saint Louis 4 Millstone Campus, St. Louis, Missouri  63146  Rabbi Sholom Rivkin, Chief Rabbi (314) 569-2770 Fax - (314) 569-2774
	Congregation Shaarei Tefila Las Vegas, Nevada Rabbi Yaakov Wasser (702) 384-3565
	Earth Kosher, International Kosher Agency 137 Midwood Rd, Teaneck, New Jersey 07666 Rabbi Zecharyah Tzvi Goldman Rabbi Zushe Blech
	Jersey Shore Orthodox Rabbinate (J.S.O.R.) 230 Crosby Avenue, Deal, New Jersey 07723 Rabbi Yitzchak Farhi (732) 531-4872
	BAIS DIN OF CROWN HEIGHTS Rabbi Dov Ber Levertov Brooklyn, New York (718) 774-7504
	Rabbi Shlomo Stern (Debraciner Rav) 1641 56th Street, Brooklyn, New York 11204 (718) 853–9623
	Kashruth of The Central Rabbinical Congress Rabbi Yidel Gruber Brooklyn, New York (718) 384-6765
	Menora K POB 190048 Brooklyn, New York, 11219-0001  Rabbi Nachum Zvi Josephy (718) 854-8047
	The "Sefer Torah-Kasher" The Vaad Harabbonim of Flatbush , Brooklyn, New York Rabbi Eli Skaist, Rabbinic Administrator (718) 951-8585
	Sepharadic Rabbinical Council of America 2030 Ocean Pkwy, Brooklyn, New York 11223 718-376-0009 Rabbi Hananiah Elbaz
	VAAD Vaad HaKashrus of the Five Towns    597A Willow Avenue, Cedarhurst, New York 11516 Rabbi Yosef Eisen, Rabbi Moshe Chait (516) 569-4536
	THE "CHOF KOSHER" 73-09 136th Street, Kew Garden Hills, NY 11367 Rabbi Solomon B. Shapiro (718) 263-1574
	National Kashrut  101 Route 306  Monsey, New York 10952  Rabbi Yacov Lipshutz, President (914) 352-4448 Fax - (914) 356-9756
	Rabbi M. Weissmandl (Rav of Nitra-Monsey) Monsey, New York
	Igud Horobonim 3 West 16th St., 4th FL, New York, New York 10011 Rabbi Saul Eisner (212) 242 6420
	K’hal Adath Jeshurun (Breuer’s)  85-93 Bennet Avenue,  New York, New York  10033    Rav Zachariah Gelley, Rav (212) 923-3582 Fax - (212) 781-4275
	Torah Union Kashrus Agency 575 Grand Street, Suite 204, New York, New York 10002 Rabbi Avraham Fishelis (212) 674 1502
	Vaad Hakashrus of Buffalo, Inc POB 755, Williamsville, New York 14221 Rabbi Dovid Plaut 716-634-3990, 716-634-3990
	Tri-State Kashruth, Vaad Hoer of Cincinnati 6446 Stover Avenue  Cincinnati, Ohio  45237 Phone:  Rabbi Yacov Toron, Rabbinic Administrator (513) 731-4671  Fax: (513) 531-5665
	Vaad Hakashrus of Cleveland 1750 Euclid Avenue, Cleveland, Ohio 44115 Rabbi Naftali Burnstein (216) 566-9200, (216) 861-1230
	Community Kashrus of Greater Philadelphia - Keystone K 200 Haverford Road, Wynnewood, PA 19096 Phone: 610-642-6556, Fax: 610-664-5665 Rabbi Dov A. Brisman 215-722-0239 Rabbi Aaron Felder 215-745-2968 Rabbi Avraham Shmidman 610-664-5626 Rabbi Avraham Steinberg 610-667-3255 Rabbi Mordechai Terebelo 215-745-0379
	Kosher Technical Konsultants 4537 Winding Brook Drive, Bensalem, Pennsylvania 19020-7805 Rabbi Alan Ira Silver, M.D. Tel: (215) 745.3773     Fax: (215) 725.3775
	Vaad Hakashrut of Luzerne County 242 South Franklin Street,Wilkes-Barre, Pennsylvania 18701-1012 Rabbi Meir Rosenberg 570-825-6619, Fax - 570-825-6634
	Vaad Hakashruth of Rhode Island 275 Camp St., Providence, Rhode Island 02906 Rabbi Chaim Marder 401-334-9393
	Houston Kashruth Association P.O. Box 35225, Houston, Texas 77235 713-517-3990
	Mehadrin Kashrus of Texas, Chabad Rabbi Shimon Lazaroff, Rav Hamachshir 10900 Fondren Road, Houston, Texas 77096 713-777-2000
	The Texas K & International Kosher Supervision 351 East Price Street Suite #200  Keller Texas  76248 Rabbi Dovid Jenkins, Rabbinic Administrator (817) 337-4700 Phone - (817) 337-4901 Fax
	Vaad Hakashrus of Dallas - THE "DK"   7900 Northaven Road,  Dallas, Texas 75230  Rabbi David Shawl, Kashrus Admin Was Dallas Kashrut Council) (214) 750-8223 - Fax (214) 368-4709
	Vaad Harabanim of Greater Seattle 5100 South Dawson Street, Suite #102  Seattle, Washington 98118-2100 David Grashin, Administrator (206) 760-2100  Fax - (206) 760-0905
	Kosher Supervisors of Wisconsin 4900 W. Burleigh Rd., Milwaukee, Wisconsin 53210 Rabbi Benzion Twersky 414-873-8746, 414-873-8747 FX, 414-758-0195 (cell)
Israel
	Rabbi Moshe Yehudah Leib Landau Rechov Yechezkel 3, Bnei Brak (9723) 618-2647
	The Beis Din Tzedek of Agudas Israel Moetzes Hakashrus 2 Press St., P.O. Box 513, Jerusalem (9722) 538-4999 Rabbi Zvi Geffner
	Chug Chasm SOfer 18 Maimon ST, POBox 426, Bnei Brak, 51273 {972-3} 618-8596 Rabbi Shmuel Eliezer Sternman
	She-erit Yisrael 6 Rechov Chazon Ish, Bnei Brak {972-3} 579-8631 Rabbi Michael Hoffman
	Glatt Kosher – Nevei Achiezer Rav Shlomo Mahpud, (03) 769-702 Rav Baruch Roshgold, (03) 797-172
	Bais Din Tzedek of the Eida Hachareidis of Jerusalem 011-972-2-251-651
	BELZ The Bais Din Tzdek of K’hal Machzikei Hadas 02-2-385-832 or 02-795-414
	Rabbi Nuchem Efraim (Noam) & Teitelbaum (Volver Rav)
Canada
	Calgary Rabbinical Council 1607 90th Ave SW, Calgary Alberta T2V 4V7 403-253-8600 Rabbi Moshe Shulman
	Kashruth Council of Toronto  4600 Bathurst Street  Suite #240  North York, Ontario M2R3V2  (416) 635-9550 Fax - (416) 635-8760 Rabbi Mordechai Levin, Executive Director
	Orthodox Rabbinical Council of British Columbia 8080 Fancis Road, Richmond, British Columbia, Canada V6Y1A4 Rabbi Levy Teitlebaum Phone: (604) 275-0042 - Fax: (604) 277-2225
	Montreal Vaad Hair  6333 Decarie Boulevard Suite #100  Montreal, H3W3E1 Canada  (514) 270-2659 Fax - (514) 739-7024  Rabbi Peretz Jaffe Rabbinic Admin, Rabbi Saul Emanuel Exec Dir
France
	Beth Din De Lyon et de la Region 34 Rue d’Armenie, 69003 Lyon 78-629-763 337-895-0947 69003 Rav Y. Teboul
	Bureau De Certification Kosher Europeen 60 rue Jean Claude Vivant, 69100 Villeurbanne France 0033-04.79.88.39.82 Fax: 0033-04.79.35.52.42 Rabbi Daniel Alloun
	Rabbinat Loubavitch De France 110 Bd. de Menilmontant 75020, Paris (3314) 033-8852; Fax: (3314) 315-0790. Rabbi Hillel Pewzner
	Beth Din Zedek of Paris 17 Rue St. George, Paris 75009 ( F ) 3314-822-626 Rabbi David Messas
	Rabbi SchlesigerS Strasbourg K KOSHER
	Rabbi Mordechai Seckbach 1Place Golbery, 67000 Strasbourg 3388-603-618, 3388-612-786
	Rabbi Mordechai Rottenberg, (Chief Orthodox Rav of Paris) 10 Rue Pavee, Paris 75004 (3314) 887-4903 Rabbi Mordechai Rottenberg
	Adath Yereim of Paris 10 Rue Cadet, 9e, (Metro Cadet), Paris 75009 Rabbi Y.D. Frankfurte
Great Britain
	The "MK" Manchester Beth Din MJCC Jubilee School, Bury Old Road, Manchester M7 4QY 061-740-9711 Rabbi Yehudoh Brodie, Administrator
	The London Beth Din Court Chief Rabbi Rabbi Berel Berkowitz 01-387-4300
	KEDASSIA Kedassia, The Joint Kashrus Committee of England  67 Amhurst Park, London, England 44181-800-6833
	Machzikei Hadas Manchester 17 Northumberland St., Salford M7FH (44161) 792-1313 Rabbi M.M. Schneebalg
	K’hal Machzikei Hadas Edgeware. 7 The Rise Edgeware, Middlesex Habbns (44208) 958-1030 Rabbi Eliezer Schneebalg
	Dayan Osher Yaakov Westheim 15 Broom Lane, Salford M7 4EQ (44161) 740-9711 Mr. Yehuda Weiss
	KIR – Badatz Igud Rabbonim 15 Broom Lane, Salford M7 4EQ +44 161 720 8598 Rabbi Danny Moore
	KIR – Badatz Igud Rabbonim 15 Broom Lane, Salford M7 4EQ +44 161 720 8598 Rabbi Danny Moore
Hong-Kong
	H.K.K. Kosher Certification Service of Hong Kong, Rabbi David Zadok Phone: (852) 2540-8661

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