From preparation to destination, travel made lighter
Set aside the worries, fill it with excitement,
Time made only for travel — KOSIM INTERNATIONAL
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About Kosim International
Even at this very moment,
travelers around the world
are preparing their journeys
with Kosim International.
Kosim International builds global digital infrastructure that connects travel communications, itineraries, and local calling. Through KOSIM (eSIM data roaming), TTEONA (travel-mate matching), and SmoothCall (local-language calling assistance), we help travelers stay connected across borders without the usual friction of SIM swaps, language barriers, or fragmented tools.
Travelers can activate data in minutes across 149 countries, find companions who match their plans, and complete restaurant or hotel calls in the local language. Our headquarters is in Gimhae, Gyeongnam, Republic of Korea. For partnerships, marketing, and corporate inquiries, email contact@kosim.co.kr or use the Contact page.
KOSIM
Data connectivity in about three minutes—no SIM swap. Stay focused on the trip in 149 countries.
TTEONA
Travel together. Meet mates whose preferences and dates match yours.
SmoothCall
We place overseas calls in the local language for you—restaurant bookings, hotel check-in, and more.
Kosim International to Unveil Integrated Travel Platform ‘Kosim’ at Travel Show 2026
Combining eSIM, AI Call Assistance, and Community… Presenting a New Paradigm for Global Travel Connectivity
2026-05-05
Kosim International to Participate in ‘All That Travel 2026,’ Unveiling Global Travel Platform ‘Kosim’
Kosim International introduces its integrated travel platform ‘Kosim,’ combining eSIM, AI call assistance, and a travel community at Travel Show 2026, aiming to solve connectivity and communication challenges for global travelers.
2026-04-15
Kosim International and Travelover Sign MOU to Enhance Travel Insurance Services
The partnership aims to streamline the entire travel insurance process and strengthen global travel platform competitiveness through digital transformation.
2026-04-13