What WSG does

WSG (also known as WSGCREST) is a privately-held Korean manufacturer headquartered in Busan that designs and produces precision-engineered flow components for life sciences, semiconductor, AI infrastructure, and industrial end-markets. The company's core technology platform centers on ultra-high purity (UHP) stainless steel tubing and fittings — including the proprietary WSL (Welded-as-Seamless) process, which yields metallurgically seamless-equivalent welded tubing — and spans a deep product portfolio: the MS1–MS9 series for semiconductor UHP gas and fluid delivery (AP, BA, single-melt EP, VIM/VAR double-melt EP, high vacuum, and CFOS oxygen-service grades), ASME BPE-certified bioprocess piping and diaphragm valves, multi-use stainless bioreactors and fermentors (8L–1,000L pilot and custom commercial scale), the KPure single-use ecosystem (bioreactor bags up to 2,000L, mixing, storage, filling, freezing, and sterile sampling bags built on a proprietary antioxidant-free multi-layer film), the rHCDpurify and KPure 96S QC analytics platforms, KPure GF filtration, HPLC column systems, purified water and pure steam generation, fetal bovine serum, and the KCell Biosciences cell culture media line. Adjacent lines include AI hyperscale liquid cooling tubing, fittings, valves, and prefabricated spools and skids, as well as 3-A sanitary products, power generation U-tubes and condensers, and oil-and-gas instrumentation and piping.

WSG's go-to-market is a hybrid of direct enterprise sales and a strategic global alliance network covering 38 countries, with channel partners handling local marketing, distribution, and joint technical development. The company is the only domestic Korean manufacturer with ASME BPE certification for fittings, and holds a stack of further credentials (3-A, EHEDG, FDA, cGMP, SEMI, ISO 14001, ISO 45001, URS) that gate entry into regulated fluid-handling applications. Pricing is quote-based across all products due to custom engineering and project-specific configurations, and there is no public pricing. The customer base is heavily weighted to tier-1 global enterprises, with named approvals from Samsung Electronics, ASML, Tesla, Micron, Merck, Samsung Biologics, Celltrion, Lotte Biologics, Sartorius, OpenAI, Gazprom, NASA, Duqum Refinery, Chobani, Tyson Foods, and Emmi Roth Cheese. WSG is private, has 51–100 employees per firmographic data (founded 1998 per firmographics, with a separate record showing 2008 incorporation), and does not publicly disclose revenue; the single on-record investment event is a 2018 Dayli Partners entry.

Name

WSG

Legal name

WSG

Website

https://wsgcrest.com

Company type

Private

Founded year

2008

Operating status

Operating

Headcount range

51–100 employees

Short description

WSG (WSGCREST) is a privately-held Korean manufacturer of precision-engineered ultra-high purity stainless steel tubing, ASME BPE bioprocess piping, single-use bioprocess consumables, and AI data center liquid cooling infrastructure, serving tier-1 enterprises in biopharma, semiconductor, and AI infrastructure across 38 countries.

Ownership category

akta.pro rank

Product category

Ultra-High Purity Process Equipment

NAICS

Other Metal Valve and Pipe Fitting Manufacturing (332919), Fabricated Pipe and Pipe Fitting Manufacturing (332996), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Laboratory Analytical Instruments (3826), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)

akta.pro primary industry

Process Gases & Gas Delivery Consumables (Specialty/Bulk/UHP) (HDAHAGAL)

akta.pro secondary industries

Air Quality & Filtration Equipment (IAQ) (IMAHAKAI), Industrial Gas & Air Separation Equipment (ASU, PSA, Cryogenic Systems) (IMAHAEAI)

Keywords

• Ultra-high purity tubing
• Bioprocess piping systems
• Single-use bioprocess consumables
• Semiconductor gas delivery
• Pharmaceutical fluid handling

Headquarters

HQ city

Busan

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. UHP Stainless Steel Tubing & Fittings: Ultra-high purity stainless steel tubing, fittings, and valves for semiconductor, AI data center, and industrial applications. Products include EP, BA, AP, CFOS, and High Vacuum grade tubing meeting ASME, ASTM, and JIS standards.
2. Single-Use Bioprocess Consumables: KPure branded single-use products including bioreactor bags, mixing bags, storage bags, filling bags, sampling systems, and freezing bags for biopharmaceutical manufacturing.
3. Capital Equipment Systems: Multi-use stainless steel bioreactors (8L-1000L pilot, custom commercial scale), fermentors, purified water systems, and pure steam generators for biopharmaceutical production facilities.
4. ASME BPE Process Piping Systems: Complete ASME BPE-certified hygienic piping systems including tubing, fittings, and diaphragm valves for biopharmaceutical and food & beverage applications.
5. Project Solutions & Custom Engineering: Cost-effective project solutions for life sciences, semiconductor, and AI microelectronics industries, including prefabricated spools and skids for liquid cooling infrastructure.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels4 records

Core offering

WSG manufactures and supplies precision-engineered ultra-high purity (UHP) stainless steel tubing, fittings, and valves for semiconductor and industrial gas delivery, ASME BPE-certified bioprocess piping systems, and a KPure-branded portfolio of single-use bioprocess consumables (bioreactor bags, mixing bags, storage bags, sampling systems), multi-use stainless steel bioreactors and fermentors, purified water systems, and biopharmaceutical QC instruments. The company also supplies prefabricated spools, manifolds, and skids for AI data center liquid cooling infrastructure. WSG serves enterprise customers in life sciences, semiconductor/microelectronics, AI data centers, food and beverage, power generation, and oil and gas industries across 38+ countries.

Product overview

WSG delivers highly engineered product solutions for life sciences and microelectronics industries. The company offers a comprehensive product portfolio comprising: (1) Life Sciences & Biotechnology products including ASME BPE bioprocess piping systems (tubing, fittings, valves), multi-use stainless steel bioreactors and microbial fermentors, single-use technology (SUT) including KPure bioreactor bags, mixing bags, storage bags, filling bags, freezing bags, and sampling systems, KPure Biosolutions QC analytics (rHCDpurify nucleic acid extraction, KPure 96S qPCR, EAC-Bio HPLC chromatography), filtration solutions (KPure GF series), cell culture media (KCell Biosciences), purified water systems, fetal bovine serum, and HPLC column tubes; (2) Semiconductor & Microelectronics UHP tubing solutions (MS1-AP, MS2-BA, MS3/MS4-EP series, MS7-High Vacuum, MS9-CFOS) for wafer fab gas delivery and equipment hookup; (3) AI Hyperscale Facility solutions including liquid cooling tubing, fittings, valves and prefabricated spools/skids for data center thermal management; (4) Food & Beverage 3A sanitary tubing, fittings and valves; (5) Power Generation condenser tubes, feedwater heater U-tubes; (6) Oil & Gas CREST Series instrumentation tubing and fluid/gas transfer piping solutions. The portfolio operates as a multi-product platform serving global end-users across biotech, semiconductor, AI infrastructure, food/beverage, energy, and oil & gas sectors.

Differentiator

Problem solved

Functional benefit

Brands

• KPure: Brand for biological products including Fetal Bovine Serum (FBS), cell culture media, single-use bags, filters, QC solutions, and chromatography systems
• CREST Series
• MS9 Series
• MS4 Series
• MS3 Series
• MS2 Series
• MS1 Series

Products and services

• CREST Series Tubing Gazprom-qualified seamless tubing solution for high-precision instrumentation and high-pressure hydraulic applications in oil and gas industries, engineered with 304, 304L, 316L, and Duplex (SA789) materials for extreme stress and corrosive environments.
• MS4 Series EP Tubing (Double-Melt VIM/VAR) ASML-approved double-melt VIM/VAR 316L stainless steel electropolished tubing with 5 Ra (0.127 μm) inner diameter surface roughness for ultra-clean gas delivery in semiconductor manufacturing.
• MS3 Series EP Tubing (Single-Melt) Samsung Electronics-qualified single-melt 316L electropolished tubing with ≤10 Ra (0.254 μm) ID surface roughness for specialty gas supply and bulk distribution systems.
• MS2 Series BA Tubing Samsung Electronics-qualified bright annealed tubing with 15 Ra (0.381 μm) ID surface roughness for bulk gas distribution (N2, Ar) and non-corrosive gas delivery systems.
• MS1 Series AP Tubing Samsung Electronics-qualified annealing and pickling tubing with 32 Ra surface roughness for utility-grade applications and process cooling water control in semiconductor facilities.
• MS7 Series High Vacuum Tubing Micron-approved ultra-high purity high vacuum tubing for semiconductor wafer fab gas delivery and facility hook-up systems with 32 Ra (0.8 μm) ID surface finish, supporting outer diameters from 1/4 to 6 inches.
• MS9 Series CFOS Tubing Tesla and Samsung-qualified CFOS (Cleaned for Oxygen Service) tubing with oxygen-specific cleaning protocol for zero-contamination equipment hook-up and specialty gas distribution.
• ASME BPE Process Piping System Complete ASME BPE-certified bioprocess piping systems including tubing, fittings, and valves for life sciences and biotechnology applications in biopharmaceutical manufacturing.
• ASME BPE Aseptic Diaphragm Valves ASME BPE-certified and EHEDG-approved aseptic diaphragm valves with zero-contamination performance for sterile fluid control in pharmaceutical and biotech applications.
• Multi-Use Stainless Steel Bioreactors Automated multi-use stainless steel bioreactor systems for pilot (8L–1,000L) and commercial production scale with CIP/SIP capabilities for cGMP biopharmaceutical production.
• Microbial Fermentation System High-precision industrial microbial fermentation systems with automated aeration, DO control, and CIP/SIP for cGMP biopharmaceutical production.
• WSG Single-Use Technology (SUT) Bioreactor Single-use bioreactor system optimized for modern biopharmaceutical manufacturing, supporting animal cells, insect cells, and shear-sensitive cell lines with scalable volumes from 50L to 2,000L.
• KPure Bioreactor Bag Ultra-precise single-use bioreactor bag with advanced multi-layer co-extruded film technology (LDPE/EVOH/ULDPE, 400 μm), optimized for cell culture with gas barrier properties and antioxidant-free composition. Validated at commercial 2,000L scale.
• KPure Mixing Bag High-performance single-use magnetic coupling mixing bag for powder-liquid and liquid-liquid mixing processes, supporting capacities from 500mL to 3,000L.
• KPure Storage Bag Ultra-precise aseptic storage and transport bags with 2D and 3D architecture for biopharmaceutical fluid storage, ranging from 5mL samples to 2,500L commercial production.
• KPure Filling Bag Aseptic filling bags for final dosage form and filling solutions, offering pre-validated and pre-sterilized modular solutions to maximize process safety in biopharmaceutical manufacturing.
• KPure Freezing Bag Advanced ultra-low temperature cryopreservation bag with EVA tubular film technology for cell therapy, stem cell banking, and clinical sample storage applications.
• KPure KY Sterile Sampling System Ultra-precise closed aseptic sampling system for biopharmaceutical manufacturing, providing contamination-free sample collection across upstream and downstream processes.
• KPure 1/2 Liner Bag High-efficiency liner bag for liquid-liquid and solid-liquid mixing processes in biotech applications, featuring proprietary multi-layer co-extruded film technology.
• KPure GF Series Filters Pleated capsule filters with advanced 3D glass fiber matrix structure for bioprocess and industrial pre-filtration, offering high particle retention capacity and efficiency.
• KPure EAC-Bio Series HPLC System Next-generation high-performance liquid chromatography (HPLC) hardware with automatic motorized compression technology and pack-in-place philosophy for biopharmaceutical separation applications.
• HPLC Column Tube Ultra-high purity stainless steel HPLC column tubes with 8-10 Ra internal surface finish for analytical accuracy in biotech and pharmaceutical chromatography.
• rHCDpurify Automated Nucleic Acid Extraction System High-performance automated sample preprocessing platform for biopharmaceutical QC. One-click solution for nucleic acid extraction and purification from complex biological matrices, supporting residual host cell DNA, mycoplasma, and virus detection.
• KPure 96S Real-time PCR System High-performance real-time PCR (qPCR) system for biopharmaceutical quality control, enabling residual DNA quantification and pathogen detection with superior temperature uniformity and high sensitivity optical detection.
• Purified Water System (PWG) Purified water generation and distribution systems meeting USP, EP, WHO, ChP, and JP pharmacopeia standards for pharmaceutical and biotech facilities, with capacity range from 250L to 50,000L/hour.
• Pure Steam Generator High-purity steam generation systems meeting HTM2010 (EN285) standards for pharmaceutical sterilization processes.
• KPure Fetal Bovine Serum (FBS) GMP-compliant and sterilized high-performance fetal bovine serum with ≤10 EU/mL endotoxin levels, produced via 3-pass 0.1 μm sterile filtration in ISO certified cleanroom, for biopharmaceutical manufacturing and cell therapy.
• AI Liquid Cooling Tubing, Fitting & Valve Samsung Electronics-qualified ultra-high purity stainless steel tubing, fittings, and valves for AI data center liquid cooling systems including D2C and immersion cooling architectures.
• Prefabricated Spools & Skids Assembled utility assemblies, manifolds, and integrated skids for AI data center liquid cooling and thermal management with plug-and-play field integration. Validated with 100% helium leak testing.
• 3A Sanitary Tubing, Fitting & Valve 3A-certified sanitary stainless steel tubing, fittings, and valves for food, dairy, and beverage processing applications.
• Feedwater Heater U-Tubes High-precision U-tubes for high-pressure and low-pressure feedwater heaters in power generation facilities, manufactured to ASME SA249 and SA688 standards.
• Condenser Tubes High-performance condenser tubes with titanium Grade-2 and 316L options for thermal power, gas, and nuclear power plant steam condensers.
• Fluid and Gas Transfer Piping Solutions NASA and Duqum Refinery-qualified fluid and gas transfer piping solutions for extreme pressure and corrosive environments in the global energy sector.
• KCell Biosciences Cell Culture Media Serum-free chemically defined cell culture media for recombinant proteins, stem cells, immune cells, and vaccines, including basal media, supplements, and custom media development services, supplied by WSG's wholly-owned subsidiary KCell Biosciences.

Quantifiable outcome

• Surface roughness down to 5 Ra (0.127 μm) for EP tubing enabling ultra-clean specialty gas delivery
• +3 more outcomes

Named customers19 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature12 records

Partnerships

One partnership is on record.

• KCell BiosciencesminorOthersKCell Biosciences is listed as a family site/affiliate company. KCell provides serum-free chemically defined cell culture media, basal media, supplements, and customized services for biopharmaceutical production. Related through common WSG corporate family.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Sartorius: Leading bioprocess equipment and consumables supplier with single-use bioreactors, bags, and filtration — a direct peer to KPure single-use portfolio and a current WSG customer for ASME BPE fittings.
• Dockweiler: German specialist in UHP stainless steel tubes, fittings, and orbital-welded assemblies for semiconductor, pharmaceutical, and analytical applications — overlaps with WSG's MS-series and orbital welding capabilities.
• Cytiva (Danaher): Global bioprocess single-use and stainless solutions provider offering bioreactors, single-use bags, filtration, and analytics — directly comparable to WSG's KPure single-use consumables, multi-use bioreactors, and bioprocess QC stack.
• GMM Pfaudler: Global manufacturer of glass-lined reactors, stainless steel bioreactors, fermentors, and allied process equipment for pharma and biotech — comparable to WSG's multi-use stainless bioreactors and microbial fermentation systems.
• FITOK Group: Manufacturer of instrumentation valves, fittings, and UHP tubing for semiconductor, oil & gas, and analytical instrumentation — directly comparable to WSG's CREST series instrumentation offering.
• Swagelok: US-headquartered global manufacturer of fluid system components including UHP tubing, fittings, and valves for semiconductor, biopharma, oil & gas, and analytical instrumentation — directly comparable product overlap with WSG's UHP stainless offering.
• Fujikin: Japanese specialty valve and fitting maker dominant in semiconductor UHP gas delivery (the same MS-series use case WSG serves), with strong positions at global wafer fabs and OEMs including ASML-adjacent applications.
• Entegris: US-based specialty materials and fluid handling solutions provider with a leading position in semiconductor gas delivery systems — competes with WSG's MS-series EP/CFOS/high-vacuum products at wafer fabs.
• Ham-Let Group: Israeli-origin global manufacturer of valves, fittings, and tubing for high-purity and high-pressure applications across semiconductor and analytical — directly comparable to WSG's high-precision instrumentation and UHP product lines.
• Valex: US manufacturer of ultra-high purity stainless steel tubing, fittings, and valves serving semiconductor gas distribution and bioprocess — a direct head-to-head competitor to WSG's CREST and MS-series products.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 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 WSG