QSI Co. Overview

  • Founded
  • 2000
  • Status
  • Public
  • Employees
  • 129
  • Stock Symbol
  • 066310
Stock Symbol
  • Share Price
  • $13.74
  • (As of Friday Closing)

QSI Co. General Information


QSI Co Ltd is a South Korea-based company mainly engaged in the manufacture of semiconductor laser diodes (LDs). The product portfolio of the company includes Red Laser diode and Infra-Red Laser diode.

Contact Information

Ownership Status
Publicly Held
Financing Status
Formerly VC-backed
Primary Industry
General Purpose Semiconductors
Other Industries
Other Commercial Products
Other Semiconductors
Stock Exchange
Primary Office
  • 17, Cheonheung 8gil
  • Sungger-eup, Seobuk-gu
  • Cheonan-si, Chungnam-do 31044
  • South Korea
+82 000-000-0000
Want detailed data on 3M+ companies?

What you see here scratches the surface

Request a free trial
Want to dig into this profile?

We’ll help you find what you need

Learn more

QSI Co. Stock Performance

(As of Friday Closing)

Stock Price Previous Close 52 wk Range Market Cap Shares Average Volume EPS
$13.74 $13.61 $12.63 - $19.21 $114M 8.27M 62.8K $0.14

QSI Co. Financials Summary

In Thousands,
TTM 30-Jun-2021 FY 2020 31-Dec-2020 FY 2019 31-Dec-2019 FY 2018 31-Dec-2018
EV 115,723 118,296 83,666 22,670
Revenue 24,077 19,483 19,449 17,126
EBITDA 3,542 1,075 2,377 1,038
Net Income 1,176 115 947 (322)
Total Assets 69,006 68,288 50,470 48,784
Total Debt 523 511 414 0
Public Fundamental Data provided by Morningstar, Inc. disclaimer

QSI Co. Valuation & Funding

Deal Type Date Amount Valuation/
Post-Val Status Debt

This information is available in the PitchBook Platform. To explore QSI Co.‘s full profile, request access.

Request a free trial

QSI Co. Patents

QSI Co. Recent Patent Activity

Publication ID Patent Title Status First Filing Date Technology (CPC) Citations
US-20180301584-A1 Electrical devices making use of counterdoped junctions Granted 29-Sep-2015 0000000000
US-10756227-B2 Electrical devices making use of counterdoped junctions Active 29-Sep-2015 0000000000 0
US-20200343401-A1 Electrical devices making use of counterdoped junctions Pending 29-Sep-2015 0000000000
US-10531024-B2 Pixel for use with light having wide intensity range Active 11-May-2015 00000000000
US-20180124338-A1 Pixel for use with light having wide intensity range Granted 11-May-2015 H04N5/35563 0

QSI Co. Executive Team (1)

Name Title Board Seat Contact Info
Lee Cheong-dae President, Chief Executive Officer & Board Member
To view QSI Co.’s complete executive team members history, request access »

QSI Co. Board Members (1)

Name Representing Role Since
Dong Soo Bang QSI Co. Board Member 000 0000
To view QSI Co.’s complete board members history, request access »

QSI Co. Signals

Growth Rate

0.80% Weekly
Weekly Growth 0.80%, 93rd %ile
-35.5%. 530%

Size Multiple

219x Median
Size Multiple 219x, 100th %ile
0.00x 0.95x. 413Kx

Key Data Points

Twitter Followers


Similarweb Unique Visitors


Majestic Referring Domains


PitchBook’s non-financial metrics help you gauge a company’s traction and growth using web presence and social reach.

Request a free trial