SDT

SDT is a developer tools company in Seoul, South Korea, founded in 2017.

Empowering the Quantum Age

Headquarters
Seoul
Employees
51–200
Founded
2017
Business Model
B2B
Website
sdt.inc

About

SDT Inc. is a Seoul-based full-stack quantum computing company pioneering Quantum Design and Manufacturing (QDM) — designing and building the complete infrastructure that quantum systems run on, including cryogenic machinery, qubit control electronics, measurement instruments, immersion cooling, and hybrid quantum-AI cloud platforms. Founded in 2017, SDT's product portfolio spans superconducting quantum computers (KREO series), the QuREKA hybrid cloud platform, and scientific instruments such as qubit controller units and time-tagging measurement units. The company was named a World Economic Forum Technology Pioneer in 2026 and raised $20.6 million in funding from Praxis Capital Partners.

Summary

It lists 51–200 employees.

Tech & App Stack

3 technologies & apps tracked

Every product and vendor across these categories, with where each signal came from.

Create a free account with 25 free credits every month, no card needed, to unlock the full tech & app stack, funding history, and valuations.

Similar Companies

Stripe

Stripe provides payments, billing, money-management, fraud-prevention, and identity tools that he...

South San Francisco, United States5001–10000Banking, Fintech
Series G+Total funding$8.8BMar 2023
Epic Games

Leading interactive entertainment company and developer of Fortnite, Unreal Engine, and the Epic ...

CARY, United States1001–5000Developer Tools, Entertainment
Corporate RoundTotal funding$7.9BFeb 2024
Mistral AI

Mistral co-creates tailored AI systems for enterprises and governments, combining frontier models...

Paris, France501–1000Artificial Intelligence, Generative AI
Series DTotal funding$7.0BSep 2026
Zhipu AIIPO

Chinese AI company developing GLM large language models and multimodal agent APIs for enterprises...

Beijing, China501–1000Artificial Intelligence, Developer Tools
Venture RoundTotal funding$5.5BJul 2026
Cognition

AI software engineering company building Devin, an autonomous AI coding agent capable of planning...

San Francisco, United States51–200Artificial Intelligence, Developer Tools
Series ETotal funding$4.1BSep 2026
CursorAcquired

Cursor is the best way to code with AI, and built to make you extraordinarily productive.

San Francisco, United States51–200Artificial Intelligence, Developer Tools
Series DTotal funding$3.4BNov 2025

Your company? Embed this profile

Add the live badge to your site — it stays current as your funding data updates.

SDT on Indexed.vc
<a href="https://indexed.vc/companies/sdt"><img src="https://indexed.vc/api/badge/company/sdt" alt="SDT on Indexed.vc" width="260" height="76" /></a>