Sekwang

What Sekwang does

Sekwang (SeKwangTech Co., Ltd. / (주)세광테크) is a privately held South Korean industrial HVAC and environmental control equipment manufacturer founded in 1999 and headquartered in Incheon. The company's core offering is the constant temperature and humidity control unit (항온항습기), which simultaneously regulates sensible and latent heat, air purification, and air diffusion to prevent equipment failures in computer rooms, data centers, clean rooms, and industrial manufacturing facilities. Its product portfolio is built around this central unit and includes supporting systems — air clean units, condensing units, industrial dehumidifiers, direct-expansion air conditioners, spot coolers, and internal components (cooling coils, reheat heaters, compressors, electronic electrode humidifiers, expansion valves, controllers, blowers/motors, filters, gauges). The company manufactures in-house across two factories equipped with CNC punch-press sheet metal machinery, and holds ISO 9001, ISO 14001, and ISO 45001 certifications alongside Inno-Biz technology-innovator status and a corporate-affiliated research institute established in 2018.

The company sells primarily through direct enterprise sales (phone, fax, email) to industrial customers in South Korea, with historical exhibition activity in Singapore (2000) and Beijing (2001) suggesting limited prior international outreach. Pricing is not publicly disclosed and is quote-based; there is no e-commerce or online marketplace presence. Revenue is not disclosed in available sources, registered capital was ₩110,000,000 as of June 2002 with no subsequent capital increase mentioned, and ownership appears concentrated with founder-CEO Kim Cheol-su — no venture capital, private equity, or institutional investor involvement is referenced beyond a 2011 transaction involving Premier Partners with a reported value of $0. The business is positioned as a specialist mid-market industrial equipment supplier serving data centers, clean rooms, and general industrial climate control needs within Korea.

Sekwang's strategic posture is that of a stable, niche industrial manufacturer: it has expanded physical capacity (second factory in 2007/2008, new factory complex in 2014), built out its regulatory and certification base (ISO 9001 in 2010, ISO 14001 in 2016, ISO 45001 in 2023), filed patents for its temperature/humidity unit (2018) and humidifier unit (2020), and received multiple Korean government commendations (Minister of SMEs and Startups 2021, Minister of Land/Infrastructure/Transport 2021, Incheon Metropolitan City Mayor 2024). The company's stated differentiators are vertical specialization in precision climate control for sensitive electronics and clean environments, in-house R&D, manufacturing self-sufficiency, and quality-system certifications — rather than technology disruption, geographic scale, or platform economics.

Name

Sekwang

Legal name

(주)세광테크

Website

https://sekwangtech.co.kr

Company type

Private

Founded year

1999

Operating status

Operating

Short description

Sekwang is a privately held South Korean industrial HVAC manufacturer producing constant temperature/humidity control units, air clean units, condensing units, dehumidifiers, and direct-expansion air conditioners for data centers, clean rooms, and industrial facilities, selling direct to Korean enterprise customers from its two Incheon factories.

Ownership category

akta.pro rank

Product category

Industrial HVAC and Climate Control Equipment

NAICS

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Refrigeration & Service Industry Machinery (3580)

akta.pro primary industry

HVAC Equipment (Heating, Cooling & Air Handling) (IMAHAKAB)

akta.pro secondary industries

Chillers & Cooling Plant Equipment (IMAHAKAE), HVAC Controls & Optimization (Smart Thermostats, VAV, Chillers/Boilers Controls) (BPABAGAB)

Keywords

• Industrial HVAC equipment
• Temperature humidity control
• Air conditioning manufacturing
• Clean room systems
• Environmental control units

Headquarters

HQ city

Incheon

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Technology or R&D, Infrastructure, Marketing or Sales

Distribution channels1 record

Marketing channels2 records

Core offering

Sekwang (SeKwangTech Co., Ltd.) is a Korean industrial HVAC manufacturer that designs, produces, and supplies temperature and humidity control units (항온항습기) along with supporting equipment such as air clean units, condensing units, dehumidifiers, direct expansion air conditioners, and spot coolers. Its products serve data centers, computer rooms, clean rooms, factories, and warehouses requiring precise environmental control. The company also manufactures internal components such as cooling coils, compressors, expansion valves, and electronic humidifiers used as replacement or built-in parts.

Product overview

Sekwang (주)세광테크 is an industrial HVAC and environmental control equipment manufacturer. The company produces a unified portfolio of climate control products centered around temperature/humidity control units (항온항습기) as the core offering, supplemented by supporting products including AIR CLEAN UNITS, CONDENSING-UNITS, DEHUMIDIFIERS, Direct Expansion Air Conditioners (직팽식 공기조화기), and SPOT-COOLERS. These products serve industrial applications in clean rooms, data centers, factories, and warehouses. The company also manufactures built-in components (냉각코일, 재열히터, 압축기, 전자전극봉식 가습기, etc.) as replacement parts. Product variants include DUCT-TYPE, ACU-TYPE, UP-TYPE, DOWN-TYPE configurations and both water-cooled (수냉식) and air-cooled (공냉식) models.

Differentiator

Problem solved

Functional benefit

Products and services

• Temperature/Humidity Control Unit (항온항습기) Environmental chamber systems designed to maintain constant temperature and humidity levels for computer equipment rooms and data centers, preventing malfunctions caused by thermal expansion, condensation, and static electricity. Available in multiple configurations (DUCT-TYPE, ACU-TYPE, UP-TYPE, DOWN-TYPE, water-cooled/air-cooled).
• AIR CLEAN UNIT

Segments2 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Scale indicators2 records

Recent moves12 records

Expansion highlights5 records

Direct peers

• Vertiv: Global data center infrastructure provider with a strong precision cooling portfolio, competing head-to-head with Sekwang for Korean data center and industrial climate control projects.
• Rittal: German enclosure and IT cooling manufacturer with a precision climate control line aimed at data centers and industrial control rooms, a directly comparable niche to Sekwang's temperature/humidity units.
• Stulz: Hamburg-based specialist manufacturer of precision air conditioning and data center cooling systems, directly comparable to Sekwang's 항온항습기 line in functionality and target end-market (server rooms, data centers, clean rooms).
• Schneider Electric (CoolCentric / Uniflair): Schneider's data center cooling offerings (including Uniflair precision cooling) compete directly with Sekwang's industrial HVAC units in server room and clean room applications.

Broad incumbents

• Daikin Industries: Global HVAC leader with industrial and commercial cooling products that compete with Sekwang's units in factories, clean rooms, and precision environments, with significantly greater scale and R&D resources.
• Carrier Global: Global HVAC and commercial refrigeration incumbent with industrial cooling products targeting factories, data centers, and process facilities, providing a broad-competitor alternative to Sekwang's portfolio.
• Trane Technologies: Global commercial and industrial HVAC OEM whose precision cooling and air-handling products are an alternative for the same industrial facility buyers that purchase Sekwang's 항온항습기 units.
• Samsung Climate Solutions (Samsung Electronics): Samsung's HVAC division serves commercial, industrial, and data center cooling markets in Korea, providing a much larger but broader-incumbent alternative to Sekwang's niche offering.
• LG Electronics (Air Solutions / HVAC): Korean chaebol with a broad commercial and industrial HVAC lineup that overlaps Sekwang's precision cooling portfolio at higher volume and broader scope, often serving the same Korean data center buyers.
• Mitsubishi Electric (Living Environment Systems / Industrial): Major Japanese HVAC manufacturer whose industrial and precision cooling lines compete with Sekwang in clean rooms, factories, and data centers across the Asia region.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights5 records

Customer concentration

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sekwang