# QSIM PLUS Co.

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/qsim-plus-co

- Industry: Telecoms
- Headquarters: Seoul, South Korea
- Website: www.qsimplus.com/
- Total disclosed funding: $5.4M
- Latest round: Series A (Jun 9, 2025)
- Investors on record: 5

## About

Based in  Seoul, South Korea, and founded in 2021, QSIM Plus Co., Ltd. formerly known as Q.C Research Institute, Inc. operates as a provider of quantum technology and a variety of product lines related to communication. In June 2025, QSIMPLUS raised KRW 4 billion in series A funding led by new investor K2 Investment Partners, with participation from returning investor STIC Ventures. The round is part of a larger KRW 7 billion series A funding. QSIM Plus Co., Ltd. primarily offers GUI-based Quantum Communication software which encompasses a wide array of services and products catering to the progression from Quantum communication to Quantum internet. QSIM Plus focuses on Quantum Key Distribution (QKD) standards and the development of post-processing IR technology for Quantum Cryptography Communication, alongside FPGA implementation.

## Funding rounds

- Series A, Jun 9, 2025, $2.9M — K2 Investment Partners, STIC Ventures
- Series A, Nov 12, 2023, $2.3M — InterVest, Mirae Asset Venture Investment, STIC Ventures
- Seed, Dec 26, 2022, $0.2M — Korea University Holdings

## Investors

- Korea University Holdings (https://capitalatlas.ai/funds/korea-university-holdings) — Seed
- InterVest (https://capitalatlas.ai/funds/intervest) — Series A
- Mirae Asset Venture Investment (https://capitalatlas.ai/funds/mirae-asset-venture-investment) — Series A
- STIC Ventures (https://capitalatlas.ai/funds/stic-ventures) — Series A
- K2 Investment Partners (https://capitalatlas.ai/funds/k2-investment-partners) — Series A