# Lessengers

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/lessengers

- Industry: Telecoms
- Headquarters: Pohang, South Korea
- Website: www.lessengers.com
- Total disclosed funding: $14M
- Latest round: Series C (Oct 24, 2024)
- Investors on record: 5

## About

Based in Pohang, South Korea, and founded in 2017 by CEO Chongcook Kim, Lessengers Inc. operates as a technology company specializing in advanced optical interconnect solutions designed for data centers, high-performance computing, and supercomputing infrastructure. In May 2026, Lessengers Inc. raised KRW 15 billion in venture funding from new investors Korea Development Bank, Smilegate Investment, SW Investment, and POET Technologies.

Lessengers provides advanced optical interconnect solutions, primarily focusing on high-performance, integrated optical connections using their proprietary 3D polymer wire technology. The company’s core product offering, known as direct optical wiring (DOW) technology, enables optical signal transmission utilizing polymer waveguides in three-dimensional arrangements. This approach eliminates the need for conventional optics or chemical reactions, thus simplifying the interconnect process in high-density environments such as data centers and supercomputing infrastructures. The technology aims to address the growing demand for data connectivity in increasingly digital applications, catering to sectors such as telecommunications, cloud computing, and high-performance computing. Lessengers serves a diverse client base, including technology companies and data center operators across North America, Europe, and Asia.

The revenue model of Lessengers is structured around direct sales and partnerships with key industry players in the optical interconnect market. Transactions typically occur through direct engagements with B2B clients, where customized solutions are developed to meet specific requirements. The company may offer different pricing tiers based on the scale of deployment and the complexity of the optical interconnect solutions provided. Flagship products, particularly those utilizing DOW technology, are priced based on the volume and configuration needed for high-density applications.

## Funding rounds

- Series C, Oct 24, 2024, $6.6M — WOORI Venture Partners, Korea Investment Partners, L&S Venture Capital
- Series B, Mar 16, 2023, $7.7M — WOORI Venture Partners, Korea Investment Partners, L&S Venture Capital, Shinhan Capital, Golden Oak Investment

## Investors

- WOORI Venture Partners (https://capitalatlas.ai/funds/woori-venture-partners) — Series B, Series C
- Korea Investment Partners (https://capitalatlas.ai/funds/korea-investment-partners) — Series B, Series C
- L&S Venture Capital (https://capitalatlas.ai/funds/l-s-venture-capital) — Series B, Series C
- Shinhan Capital (https://capitalatlas.ai/funds/shinhan-capital) — Series B
- Golden Oak Investment (https://capitalatlas.ai/funds/golden-oak-investment) — Series B