What STREX does

STREX Co., Ltd. (ストレックス株式会社) is a privately held Japanese medical research equipment manufacturer founded in 2003 and headquartered in Osaka, Japan. The company develops and sells specialized laboratory instruments for cell biology research, with a product portfolio organized around three core capability areas: controlled-rate cryopreservation, mechanical stimulation of cells (gas pressure and stretching), and vacuum plasma surface treatment. Its flagship product, the CytoSAVER Programmable Freezer FZ Series, uses proprietary Stirling cooler technology to perform LN2-free controlled-rate freezing — an architecture developed in response to a request from the Kyoto University iPS Research Institute (京都大学iPS研究所) for use inside Cell Processing Facilities (CPF). The freezer line spans FZ-2100 through FZ-3400 models, with FDA Title 21 CFR Part 11 (cGMP)-compliant variants (FZ-2200, FZ-3200) for pharmaceutical and clinical applications. The mechanobiology line includes the SP Series gas pressure stimulators (120–300 mmHg) and the ST Series cell stretching systems in manual, automated (ST-1400, ST-1440), microscope-mountable (ST-1500), and biaxial (ST-1900) configurations, supported by a range of PDMS-based stretch chambers as accessories. The SL-0600 vacuum plasma cleaner addresses surface activation, cleaning, and PDMS bonding for cell culture and microfluidic device fabrication.

STREX sells directly to research institutions, universities, and biotechnology companies in Japan and internationally, offering free demonstrations and technical consultation as part of an enterprise field-sales motion. The company markets through its corporate website (strex.co.jp domestic; strexcell.com English-language international site), content marketing via case studies and technical libraries, and an inquiry-based demo request channel. Revenue is generated primarily through one-time hardware sales under a quote-based pricing model, with a recurring-revenue adjacency from consumable stretch chambers and accessories. The primary customer segments are research institutions and universities (cell biology, regenerative medicine, stem cell and iPS research) and Cell Processing Facilities requiring GMP-compliant cryopreservation. A secondary segment comprises biotechnology and medical device companies using plasma treatment for biochip and microfluidic device fabrication. STREX has no disclosed venture capital, private equity, or institutional ownership and operates as an independent corporation.

The company's competitive position rests on three proprietary technology pillars — Stirling cooler-based LN2-free freezing, multi-pattern mechanical cell stimulation, and benchtop vacuum plasma treatment — combined with a documented regulatory moat (FDA 21 CFR Part 11 compliance on clinical models) and an ongoing U.S. patent application (No. 15/872,157) covering cardiocyte cryopreservation methods. Its strategic anchor is the co-development partnership with Kyoto University iPS Research Institute, which has shaped the CPF-compatible CytoSAVER roadmap and provided the company with credibility in the regenerative medicine research community. The most recent strategic signals — international site launch, U.S. patent filing, and FDA-compliant clinical variants — indicate a measured push from Japanese academic research buyers into regulated international cell-therapy manufacturing customers.

Name

STREX

Legal name

ストレックス株式会社

Website

https://strex.co.jp

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

101–250 employees

Short description

STREX (ストレックス株式会社) is a privately held Osaka-based manufacturer of specialized medical research equipment, serving universities, research institutions, and Cell Processing Facilities with LN2-free programmable freezers, cell stretching and gas-pressure stimulation systems, and vacuum plasma surface treatment devices for cell biology, regenerative medicine, and stem-cell research.

Ownership category

akta.pro rank

Product category

Medical Research Equipment

NAICS

Analytical Laboratory Instrument Manufacturing (334516)

SIC

Laboratory Analytical Instruments (3826)

akta.pro primary industry

Sample Preparation, Storage & Cryogenics (Freezers, Cryovials, Cryostats) (HLAGAIAJ)

akta.pro secondary industry

Cell Culture & Bioprocess Lab Equipment (Bioreactors, Single-Use Systems, Controllers) (HLAGAIAG)

Keywords

• Medical research equipment
• Programmable freezers
• Cell stretching systems
• Vacuum plasma cleaners
• Laboratory instruments

Headquarters

HQ city

Osaka

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Medical Research Equipment Sales: Sale of specialized laboratory equipment including programmable freezers, cell stretching systems, gas pressure stimulators, and plasma treatment devices. Revenue is generated through one-time hardware sales with potential for accessories and consumables.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

STREX develops and manufactures specialized medical research equipment for cell biology applications. Its product portfolio includes LN2-free programmable controlled-rate freezers (CytoSAVER FZ Series), automated and manual cell stretching systems (ST Series), gas pressure stimulators (SP Series), and vacuum plasma cleaners (SL-0600). Equipment is sold primarily to universities, research institutes, cell processing facilities, and biotechnology companies for regenerative medicine, stem cell, and mechanobiology research.

Product overview

STREX (ストレックス株式会社) develops and manufactures medical research equipment, primarily focusing on cell biology and cryopreservation instruments. The product portfolio consists of three core lines: (1) CytoSAVER Programmable Freezer FZ Series - LN2-free controlled-rate freezers using Stirling cooler technology for stem cells, cord blood, and IVF samples; (2) Cell Stimulation Systems including gas pressure stimulators (SP Series) and cell stretching systems (ST Series) available in manual, automated, and microscope-mountable configurations for mechanobiology research; (3) Vacuum Plasma Cleaner SL-0600 for surface treatment and PDMS bonding. The products support regenerative medicine research, cell therapy, and pharmaceutical development across universities and research institutions.

Differentiator

Problem solved

Functional benefit

Products and services

• CytoSAVER Programmable Freezer FZ Series LN2-free programmable freezer for controlled-rate cell cryopreservation using Stirling cooler technology. Supports stem cells, cord blood, and IVF samples with precise cooling rate control. Available in FZ-2100/2200/3100/3200/3400 models, with FZ-2200 and FZ-3200 models compliant with FDA 21 CFR Part 11 for pharmaceutical and clinical applications.
• Gas Pressure Stimulator SP Series Mechanical stress stimulation system that applies gas pressure (120-300mmHg) to cells for mechanobiology research. Features continuous and intermittent pressure modes, suitable for vascular endothelial cells, cardiac cells, kidney cells, and retinal neurons.
• Vacuum Plasma Cleaner SL-0600 Benchtop vacuum plasma treatment device for surface cleaning, activation, and modification of materials. Used for PDMS bonding, cell culture surface preparation, and improving adhesion of coatings.
• Automated Cell Stretching System ST-1400/ST-1440 Automated stretching device for applying mechanical stretch stimuli to cells inside a CO2 incubator. ST-1400 (10cc) holds 6 chambers; ST-1440 (4cc) holds 8 chambers simultaneously for comparative studies.
• Manual Cell Stretching System ST-0040/ST-0100 Manual cell stretching device for trial experiments before investing in automated systems, used for stretch/compression applications in mechanobiology research.
• Microscope Mountable Cell Stretching System ST-1500 Bilateral cell stretching system designed for microscope mounting, allowing continuous observation of single cells without removing them from the field of view.
• Biaxial Cell Stretching System ST-1900 Microscope-mountable biaxial stretching system capable of applying stretch and compression in two axes for comprehensive mechanobiology studies.
• Cell Thawing Device YS Series Water-free cell thawing device for use in cleanrooms and CPF facilities, with a compact design that allows operation inside biosafety cabinets.

Quantifiable outcome

• CytoSAVER used in multiple peer-reviewed scientific publications including stem cell and iPS cell research

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• Kyoto University iPS Research InstitutecoreStrategic or Co-development PartnerDevelopment partnership for creating a programmable freezer compatible with cell processing facility (CPF) requirements. The collaboration resulted in the development of the LN2-free CytoSAVER series specifically designed for cleanroom environments in regenerative medicine facilities.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Direct peers

• BioLife Solutions: Specialist in cell and gene therapy cryopreservation, offering controlled-rate freezers, storage systems, and cryopreservation media. Directly comparable to STREX's CytoSAVER line and the same iPS/cell-therapy CPF customer base.
• Miltenyi Biotec: Supplies cell processing instruments, reagents, and devices for cell therapy and regenerative medicine. Closely aligned with STREX in CPF equipment, particularly around GMP-compliant cell handling.
• STEMCELL Technologies: Specialty provider of cell culture media, instruments, and protocols for stem cell and regenerative medicine research. Highly comparable to STREX in customer base (iPS/stem cell labs) and product type (cell processing tools).
• Brooks Life Sciences: Provider of automated sample storage, cryogenic storage systems, and biostorage services. Directly comparable to STREX's controlled-rate freezing franchise, particularly for high-value biological sample preservation.

Broad incumbents

• Cytiva (Danaher): Large-scale life sciences tools provider with broad cell culture, bioprocessing, and cell-therapy manufacturing equipment. Overlaps with STREX in cell processing and cryopreservation workflows but as part of a much wider product portfolio.
• Thermo Fisher Scientific: Dominant global lab equipment and life sciences tools company, including controlled-rate freezers (e.g., Thermo Series) and cell culture instrumentation. Overlaps with all four STREX product lines as a broad incumbent rather than a niche specialist.
• Eppendorf: Established lab equipment manufacturer (bioreactors, cell handling, consumables). Adjacent to STREX in cell culture instrumentation and serves overlapping academic and biotech customers.
• Lonza: Global cell and gene therapy manufacturing services and equipment provider, including process development tools for CPFs. Overlaps with STREX on the cell therapy manufacturing equipment side and shares large pharma/biotech customers.
• Sartorius: Bioprocessing and cell therapy equipment manufacturer serving pharma and academic customers. Comparable to STREX in cell processing instrumentation but operates at a much larger scale and product breadth.

Emerging players

• Hamilton Company: Manufactures precision lab automation, sample storage, and cell processing instruments. Overlaps with STREX in automated cell handling and storage for research and clinical applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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 STREX