Measurement Authority Certified Organizations

AR TELECOM ENGINEERING SERVICES LIMITED COMPANY KONUTKENT NEIGHBORHOOD 3035. STREET NO:74-A/21 06330 ÇANKAYA/ANKARA (506) 688-8404 caner.ozgu@artelekom.com BTK.OZL0608H 30.12.2027 680 MHz- 8 GHzENER ELEKTRICAL ELECTRICAL IND. AND TRADING LTD. CO. BAĞLARBAŞI NEIGHBORHOOD FEYZULLAH STREET YENİYOL STREET YUNUSEMRE APARTMENT NO:10/4 MALTEPE/İSTANBUL 0533 021 01 21 info@enerelektrik.com.tr BTK.OZL3402R 28.12.2027 680.0 MHz-8.0 GHzGÜREM ENGINEERING SERVICES LTD. CO. Meclis Neighborhood Atatürk Street No:109G Dap Sitesi B-2 Block Apartment:20 Sancaktepe/İstanbul 0(530) 434 63 50 barisgedik@gurem.com.tr BTK.OZL3402Z 05.01.2027 75 MHz-6 GHzFREQUENCY TELECOMMUNICATION COMMUNICATION REAL ESTATE CONSULTANCY INC. SELAHATTİN EYYUBİ NEIGHBORHOOD URFA BLVD. KALE COOP. C BLOCK APT. NO: 23/A BAĞLAR/DİYARBAKIR 0532 397 9393 info@frekans-emr.com OZL0609S 11.10.2026 680 MHz- 8 GHzTEKNO TELECOMMUNICATION INFORMATION COMMUNICATION CONSTRUCTION TOURISM IND. TRADING LTD. CO. Seyrantepe Industrial Neighborhood Elazığ Blvd. Çeysa Twen Towers Site B Block Building No:47 B Apartment: 63 Yenişehir/DİYARBAKIR 0530 874 82 88 tekno@teknoiletisim.com.tr BTK.OZL21019 11.09.2026 50 MHz-8 GHzATEKSAN ELECTRICAL COMMUNICATION PROJECT SERVICES CONSTRUCTION FOOD TRADING AND IND. LTD. CO. BEYAZEVLER NEIGHBORHOOD 80047 STREET NO: 1A/1 ÇUKUROVA/ADANA 0533 236 74 10 ateksan@ateksan.net BTK.OZL01012 18.06.2026 700 MHz- 4 GHzCLOUD COMMUNICATION SERVICES DOMESTIC AND FOREIGN TRADE LIMITED COMPANY OSTİM OSB NEIGHBORHOOD ABDÜLKADİR GEYLANİ STREET BUILDING NO:17 APARTMENT NO:5 YENİMAHALLE/ANKARA 0545 329 27 07 info@bulutiletisim.com.tr BTK.OZL3402U 02.09.2027 10 KHz - 26.5 GHzGC TELECOMMUNICATION AND ENGINEERING TRADE LIMITED COMPANY YENİ NEIGHBORHOOD 7144. STREET NO:1C INNER DOOR NO:16 SİLİVRİ/İSTANBUL 0532 653 34 22 ersan.ozturk@gcmuhendislik.com.tr BTK.OZL340FT 28.02.2027 75 MHz-8 GHzONRA TELECOM ENGINEERING TRADE LIMITED COMPANY YAKAKENT NEIGHBORHOOD 8087/1 STREET FLOWER C BLOCK APT. NO:19/15 35640 ÇİĞLİ/İZMİR 0507 087 1258 survey@onratelekom.com.tr OZL3502V 25.11.2026 100 KHz-6 GHzMATRİS COMMUNICATION CINEMA CONSTRUCTION INDUSTRY AND TRADE LIMITED COMPANY ERYAMAN NEIGHBORHOOD FLOWER STREET NO:8/6 ETİMESGUT/ANKARA 0312 282 00 02 info@matrisiletisim.com BTK.OZL060AW 17.02.2027 50 MHz- 8 GHzALKOM ELECTRICAL ELECTRONIC COMMUNICATION INDUSTRY AND TRADE LIMITED COMPANY YURT NEIGHBORHOOD ALPARSLAN TÜRKEŞ BOULEVARD NO:264/B ÇUKUROVA/ADANA 0(541) 745-5222 eminalibeyoglu@alkomiletisim.com.tr BTK.OZL08002 16.03.2026 680 MHz- 3 GHzEBAL COMMUNICATION INDUSTRY AND TRADE LIMITED COMPANY CİHANGİR NEIGHBORHOOD AKGÜL STREET A BLOCK 19/18 AVCILAR/İSTANBUL alican.umit@ebal.com.tr 0(212) 695-7979 BTK.5441573 01.03.2028 680 MHz- 8 GHzSURTEL TELECOMMUNICATION ENGINEERING CONSTRUCTION TRANSPORT MACHINERY IND. AND TRADING LTD. CO. Ilıca Neighborhood Kırlangıç Street No:9/3 Narlıdere İZMİR vahap.ozvurmaz@hotmail.com 0-(542) 237-1526 OZL21007 26.08.2026 50 MHz- 4 GHzPROJECT AY ENGINEERING INDUSTRY AND TRADE LIMITED COMPANY KARAMEHMET NEIGHBORHOOD 15. STREET Building No:1 E Apartment:1 MENTEŞE/MUĞLA ayca.kaya@projeay.com.tr 0(554)704 8369 BTK.5453116 02.04.2026 700 MHz- 6 GHzÇINAR TELECOM INFORMATION SERVICES INDUSTRY AND FOREIGN TRADE LIMITED COMPANY MECLİS NEIGHBORHOOD ATATÜRK STREET NO:1/D SANCAKTEPE/İSTANBUL (216) 314-3658 info@cinartelekom.com BTK.OZL340LS 02.05.2026 680 MHz-8 GHzEnfor Project Telecommunication Measurement Services Trade Ltd. Co. Namık Kemal Neighborhood 65001 Street Building No:8 Apartment:9 SEYHAN/ADANA 0322 459 7270 enfor@enfortr.com, BTK.OZL0100W 21.09.2026 50 MHz-8 GHzKORAL TELECOMMUNICATION ENGINEERING INDUSTRY AND TRADE LIMITED COMPANY MURATPAŞA NEIGHBORHOOD 1. HAZELNUT STREET Building No:3 A YAKUTİYE/ERZURUM 545-109-99-25 info@koraltelekom.com.tr BTK.5456205 13.01.2027 50 MHz-8 GHzUPLINK INFORMATION AND MEASUREMENT SERVICES LIMITED COMPANY KARTALTEPE NEIGHBORHOOD KOŞUYOLU STREET NO:7/2 A BAKIRKÖY/İSTANBUL 530-010-29-23 nezaket@up-link.com.tr BTK.5456749 04.03.2027 75 MHz-3.9 GHzSWART SOFTWARE TRADE JOINT STOCK COMPANY UNIVERSITIES NEIGHBORHOOD MARTYR MUSTAFA TAYYARCAN STREET TEPE BUILDING NO:5 INNER DOOR NO: Z47 ÇANKAYA/ANKARA info@swartsoftware.com.tr 0-555-977-3289 BTK.OZL060BE 21.03.2027 680 MHz-3 GHzBELİS PROJECT ENGINEERING AND MEASUREMENT SERVICES AUTOMOTIVE INDUSTRY TRADE LIMITED COMPANY Yükseltepe Neighborhood 1956. Street Building no:8 Apartment no:2 Keçiören/Ankara 0554 245 22 09 mehmet.kilic@belisproje.com BTK.OZL060BB 15.04.2027 680 MHz-8 GHzES TECH ELEC. ELEC. ENG. R&D SOFT. OCC. HEALTH AND SAFE. CONS. AUTO. TOUR. TRANS. CONST. AND TRADING LTD. CO. TEVFİK İLERİ NEIGHBORHOOD CEMİLBEY STREET NO: 10 FLOOR: 3 / A PURSAKLAR /ANKARA info@estechmuhendislik.com.tr 0 (538) 865 46 10 BTK.OZL0609X 21/03/2027 50.0 MHz-8.0 GHzKADIKÖY MUNICIPALITY HASANPAŞA NEIGHBORHOOD FAHRETTİN KERİM GÖKAY STREET Building No:2 KADIKÖY/İSTANBUL 0216 542 50 00 BTK.5441571 07.05.2027 680 MHz-8 GHzTURKISH RADIO AND TELEVISION CORPORATION GENERAL DIRECTORATE DUMLUPINAR NEIGHBORHOOD TURAN GÜNEŞ BLVD. Building No:199 C ÇANKAYA/ANKARA 0312 463 36 50 BTK.RA0200 20.05.2027 75 MHz-3 GHzFORESTRY GENERAL DIRECTORATE BEŞTEPE NEIGHBORHOOD SÖĞÜTÖZÜ STREET Building NO:8/1 YENİMAHALLE/ANKARA 0312 296 40 00 BTK.OZL06025 23.05.2027 27 MHz- 3 GHzPROBE TELECOMMUNICATION ELEC. CONST. MACH. IND. TRADING LTD. CO. Martyr neighborhood. 38.street No:19/D Yenişehir/Diyarbakır 05308202096 okan.erbatur@gmail.com BTK.OZL21005 08.07.2027 700 MHz-6 GHzYSF TELECOM ENGINEERING AND SOFTWARE SERVICES LIMITED COMPANY Kutlu neighborhood. 455 street. Building no:19 Apartment:19 Mamak/ANKARA 05322103855 info@ysf-telekom.com.tr BTK.5457533 24/07/2027 700 MHz-4 GHzGÜNEYCELL INFORMATION TECHNOLOGIES CONSULTANCY LIMITED COMPANY Selahaddini Eyyubi neighborhood. Divan-ı Kebir street. Building no:5B Apartment:6 Selçuklu/Konya 05349668321 guney32@msn.com BTK.5457534 19/07/2027 680 MHz-8 GHzGSM PROJECT TELECOMMUNICATION ENGINEERING TRADE LIMITED COMPANY JUSTICE NEIGHBORHOOD MANAS BLVD. Building No:47 B Apartment:2601 BAYRAKLI/İZMİR 0 (533) 353 2618 latif@gsmproje.com BTK.5449630 30.09.2027 680 MHz- 3 GHzTK INFORMATION TELECOMMUNICATION TOURISM CONSTRUCTION AUTOMOTIVE SECURITY SYSTEMS LIMITED COMPANY ALTINKUM NEIGHBORHOOD 438 STREET. BUILDING NO:4 APARTMENT:4 KONYAALTI/ANTALYA 0 (543) 242 23 07 info@tkbilisim.com.tr BTK.OZL07022 21.11.2027 680 MHz- 8 GHzAKARCELL PROJECT TELECOMMUNICATION MEASUREMENT SERVICES LIMITED COMPANY HARAZ NEIGHBORHOOD 11510 STREET. BUILDING NO:23 APARTMENT NO:2 CENTER/OSMANİYE 0554 112 18 01 ugurkirici@hotmail.com BTK.5458608 18.11.2027 50.0 MHz-6.0 GHzOKCU TELECOMMUNICATION ELECTRICAL ELECTRONIC TRADE LIMITED COMPANY KARAKAYA NEIGHBORHOOD MENDERES STREET. BUILDING NO:114/A KEÇİÖREN/ANKARA 05462575466 info@okcutelekomunikasyon.com.tr BTK.5458897 19.12.2027 680.0 MHz-8.0 GHz