Gbl Gül Biyoloji Laboratuvarı San.

What Gbl Gül Biyoloji Laboratuvarı San. does

GBL Gül Biyoloji Laboratuvarı Sanayi ve Ticaret A.Ş. is a Turkish family-owned manufacturer founded in 1990 by Dr. Sait Hulusi Özbudun, producing medical device disinfectants, laboratory diagnostic stains and kits, and chemical reagents. The company operates two production facilities in Ümraniye, Istanbul — Dudullu OSB (disinfectants) and Şerifali (diagnostic kits) — and manufactures under proprietary brand families including GBL CITRO (citric acid-based hemodialysis disinfectants, e.g., 6102 at 50% citric acid), GBL ROSA-STAIN (bacteriology, histology, cytology, parasitology, andrology stains), GBL HEMA-ROSE (hematology), GBL FERTI-ROSE (sperm staining), GBL ROSA-CHEM and AQUA-ROSA (chemical reagents and water analysis). The product portfolio targets regulated healthcare applications requiring EN-standard microbiological efficacy validation, supported by GMP, ISO 13485:2016, ISO 9001:2015, ISO 10002:2018 certifications and CE marking on medical device disinfectants.

GBL monetizes primarily through wholesale B2B sales of physical products, with written quotes priced in Turkish Lira (pegged to Yapı ve Kredi Bank exchange rates) and VAT applied on top. The go-to-market is sales-led and segmented: public hospitals and health institutions are reached via UBB-registered dealers participating in government tenders (ihaleler), while private hospitals, clinics, and diagnostic laboratories purchase direct. International sales flow through the wholly-owned Svet Dış Ticaret subsidiary (established 2022), and a Trendyol e-commerce storefront extends reach to consumers and SMBs. End customers include dialysis centers, sterilization/CSSD departments, clinical microbiology and pathology laboratories, dental clinics, and water-quality testing facilities in Turkey, with selective export activity into Europe and the Middle East. The company also operates a third-party laboratory analysis service for microbiological efficacy, quality, and reliability testing under current regulatory standards.

The company remains family-controlled (no external investors disclosed), converted from a Limited Şirket to an Anonim Şirket in July 2023, and employs approximately 7 staff including qualified chemists and biologists. Active expansion signals include international trade fair participation (Medica 2023 Düsseldorf, Arab Health 2024 Dubai, Expomed Eurasia 2024/2026 Istanbul), a digital ecosystem buildout (product-group websites, redesigned GBL Blog), Trendyol marketplace entry, and a new laboratory testing service line.

Name

Gbl Gül Biyoloji Laboratuvarı San.

Legal name

GBL Gül Biyoloji Laboratuvarı Sanayi ve Ticaret Anonim Şirketi

Website

https://gbl.com.tr

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

1–10 employees

Short description

GBL Gül Biyoloji Laboratuvarı is a Turkish family-owned manufacturer founded in 1990 that produces CE-marked medical device disinfectants, microscopy stains and staining kits, and chemical reagents for hospitals, dialysis centers, diagnostic laboratories, and dental clinics in Turkey, exporting via its Svet Dış Ticaret subsidiary.

Ownership category

akta.pro rank

Product category

Medical Device Disinfectants and Laboratory Diagnostic Reagents

NAICS

In-Vitro Diagnostic Substance Manufacturing (325413), Testing Laboratories and Services (54138), Soap and Cleaning Compound Manufacturing (32561)

SIC

Services-Medical Laboratories (8071), Specialty Cleaning, Polishing And Sanitation Preparations (2842), Services-Testing Laboratories (8734)

akta.pro primary industry

IVD Reagents, Assay Kits & Consumables (Non-instrument) (HLAHAAAM)

akta.pro secondary industries

Microbiology & Sterility Assurance (Bioburden/Endotoxin/Sterility) (HLAGADAE), Analytical Development & QC Testing (Release/Stability/Potency) (HLAGAGAF)

Keywords

• Medical device disinfectants
• Microscopy stains reagents
• Clinical chemistry reagents
• Hemodialysis disinfection products
• Laboratory diagnostic supplies

Headquarters

HQ city

Istanbul (Ümraniye)

HQ country

Türkiye

HQ region

Europe

Offices2 records

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. Medical Device Disinfectants and Biocidal Products: Production and sale of licensed medical device disinfectants, surgical instrument cleaners, high-level disinfectants, hemodialysis machine disinfectants, and biocidal products for human hygiene and surface disinfection. Revenue from domestic tenders and private sector sales, with regular exports.
2. Microscopy Dyes, Staining Kits, Reagents and Fixatives: Production and sale of ready-to-use microscopy stains, staining kits, reagents, fixatives for andrology, bacteriology, hematology, pathology, cytology, and parasitology laboratories. Sold to hospital labs, private diagnostic laboratories, and university research centers domestically and internationally.
3. Chemical Reagents and Test Kits: Production and sale of biochemical reagents, buffer solutions, indicators, water hardness and chlorine test kits, standard solutions for clinical chemistry, water quality testing, and industrial applications. Revenue from B2B sales to laboratories and healthcare facilities.
4. Laboratory Analysis Services: Microbiological efficacy, quality and reliability testing services for disinfectants, biocidal products and various samples, conducted in accordance with current legislation and standards. Quality management system compliant testing.
5. International Trade via Svet Dış Ticaret: Svet Foreign Trade handles international marketing and sales of GBL products (disinfectants, cleaners, biocidal products, microscopy dyes, chemical reagents). Export subsidiary established in 2022 to expand international activities.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels6 records

Core offering

GBL manufactures and sells three main product groups: (1) medical device disinfectants including CE-marked surgical instrument disinfectants, high-level disinfectants, surface disinfectants, and citric acid-based hemodialysis machine disinfectants (GBL CITRO); (2) ready-to-use microscopy stains, staining kits, reagents and fixatives for bacteriology, hematology, pathology, cytology, andrology and parasitology (GBL ROSA-STAIN, HEMA-ROSE, FERTI-ROSE, ROSA-FIX); (3) chemical reagents and water-quality test kits including buffer solutions, indicators, normal/molar/percentage solutions and test strips (GBL ROSA-CHEM, AQUA-ROSA). It also provides microbiological laboratory analysis services for disinfectant efficacy and quality validation.

Differentiator

Problem solved

Functional benefit

Brands

• GBL® CITRO™: Citric acid-based disinfectants for hemodialysis machines
• GBL® ROSA-STAIN
• GBL® HEMA-ROSE
• GBL® FERTI-ROSE
• GBL® ROSA-FIX
• GBL® ROSA-CHEM
• GBL® AQUA-ROSA
• GBL® ROSA-VOL
• GBL® INDICA-ROSA
• GBL® ROSA-STAN
• GBL® ROSA-BUF
• GBL® ROSE-URI
• GBL® ROSA-STRIP
• Svet Dış Ticaret

Products and services

• Medical Device Disinfectants (Tıbbi Cihaz Dezenfektanları) Licensed and CE-marked disinfectants for medical devices including surgical instrument disinfectants, high-level disinfectants, medical device surface disinfectants, and hemodialysis machine disinfectants. Targeted at hospital sterilization departments, CSSDs, operating rooms, and hemodialysis centers in Turkish public and private hospitals, with international distribution via Svet Dış Ticaret.
• GBL CITRO Hemodialysis Machine Disinfectants Citric acid-based disinfectants for internal surface cleaning and disinfection of hemodialysis equipment, containing 50% citric acid (6102). Designed for use in hospital dialysis centers and standalone dialysis clinics for hemodialysis circuit disinfection and dialyzer reprocessing.
• GBL ROSA-STAIN Microscopy Stains and Staining Kits Ready-to-use stains and staining kits for bacteriology, histopathology and cytology applications including Gram staining for bacteriology, PAP smears for cytology, and sperm morphology for andrology. Sold to medical diagnostic laboratories, hospital labs, private diagnostic centers, and university research centers.
• GBL HEMA-ROSE Hematology Stains and Reagents Hematology stains, staining sets and reagents for clinical hematology laboratories, including MGG and Giemsa staining formulations. Targeted at hospital hematology departments and independent diagnostic laboratories.
• GBL FERTI-ROSE Andrology Stains Stains and staining sets for human and animal sperm morphology analysis in andrology and reproductive medicine laboratories. Sold to hospital andrology labs, fertility clinics, and veterinary diagnostic centers.
• GBL ROSA-FIX Microscopy Fixatives Fixation products for histopathology and microscopy sample preparation. Sold to pathology and histology laboratories in hospitals and independent diagnostic centers.
• GBL ROSA-CHEM Chemical Reagents and Test Kits Biochemical reagents, indicators, buffer solutions (ROSA-BUF), normal/molar solutions (ROSA-VOL), indicator solutions (INDICA-ROSA), standard solutions (ROSA-STAN), urine analysis reagents (ROSE-URI), root canal cleaners, and test strips for clinical chemistry and laboratory use. Sold to clinical chemistry laboratories and healthcare facilities.
• GBL AQUA-ROSA Water Analysis Reagents and Kits Water analysis reagents and kits for water hardness testing (titrimetric kits) and free chlorine measurement (Tolidin reagent), for water quality testing in clinical, industrial and laboratory settings.
• Laboratory Analysis Services Microbiological efficacy, quality and reliability analysis services for disinfectants, biocidal products and other samples, performed in accordance with current Turkish and EN standards by GBL's qualified team of chemists and biologists. Services include EN-standard bactericidal, fungicidal, virucidal and sporicidal efficacy validation.

Quantifiable outcome

• Standardized Gram staining quality over full shelf life — same staining quality maintained throughout product lifetime
• +2 more outcomes

Named customers4 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Svet Dış Ticaret (Svet Foreign Trade Ltd.)coreStrategic or Co-development Partner · 1 January 2022Svet Foreign Trade is GBL's wholly-owned export subsidiary established in 2022 to handle international marketing and sales of GBL products including disinfectants, biocidal products, microscopy dyes, and chemical reagents. It reduces raw material import costs and enables participation in more international exhibitions.
• Istanbul Chamber of Commerce (ITO)minorOthersActive member of Istanbul Chamber of Commerce. Membership provides access to commercial dispute resolution services and business networking within Istanbul's commercial community.
• Istanbul Chamber of Industry (ISO)minorOthersActive member of Istanbul Chamber of Industry, which issues capacity reports, domestic good certificates, and provides industrial networking and regulatory support for manufacturing companies.
• LABSIAD (Laboratory Diagnostics Industry Association)minorOthersMember of LABSIAD, Turkey's laboratory diagnostics industry association, which provides sector representation, regulatory advocacy, and industry networking for medical laboratory product manufacturers.
• IKMIB (İstanbul Chemicals and Chemical Products Exporters Association)minorOthersMember of IKMIB, the Istanbul Chemicals and Chemical Products Exporters Association, which supports international trade activities and provides market intelligence for chemical product exporters.

Scale indicators3 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Bio-Rad Laboratories: Global life science research and clinical diagnostics manufacturer with a broad IVD reagents, stains, and QC controls portfolio. Directly comparable to GBL's ROSA-STAIN, HEMA-ROSE and FERTI-ROSE microscopy reagent lines, though operating at far greater scale across regulated markets.
• Getinge: Provider of sterilization, disinfection and surgical workflow solutions to hospitals and life-science customers. Comparable to GBL's hospital sterilization, endoscopy and CSSD disinfectant offerings, though with a much broader capital-equipment and service portfolio.
• Solventum (formerly 3M Health Care): Global healthcare products company with a substantial infection-prevention portfolio including disinfectants and sterilization consumables. Competes with GBL in hospital and clinical-channel surface disinfectants and high-level disinfection products.
• Ecolab: Major global provider of cleaning, sanitization and disinfection solutions across healthcare, life sciences and industrial markets. Overlaps with GBL's disinfectant, surface sanitizer and biocidal product portfolios, particularly in hospital and dialysis facility channels.
• STERIS: Global leader in sterilization, disinfection and infection-prevention products and services for hospitals, CSSDs and dialysis centers. Directly comparable to GBL's high-level disinfectants, hemodialysis disinfectants (CITRO line), and surgical instrument cleaning range, but at significantly larger scale and integrated contract-service breadth.
• Merck KGaA (Life Science / MilliporeSigma): Major supplier of lab chemicals, buffer solutions, staining reagents, and clinical chemistry consumables. Overlaps with GBL's ROSA-CHEM, ROSA-VOL, ROSA-BUF and ROSA-STAN product families and competes for similar hospital and academic lab customers.

Emerging players

• Bio-Techne: Specialty life-science reagents and diagnostic tools provider with portfolio including histology stains, hematology reagents and clinical lab consumables. Comparable to GBL's HEMA-ROSE, ROSA-STAIN and ROSA-FIX microscopy offerings, particularly in research and specialty diagnostics.

Direct peers

• Hardy Diagnostics: US specialty manufacturer of microbiology culture media, stains, and diagnostic reagents for clinical and industrial laboratories. Compares to GBL's bacteriology, parasitology and microscopy product groups with a similar focus on standardized ready-to-use formulations.
• Avantor: Global supplier of lab chemicals, reagents, buffers and cleaning solutions to biopharma, healthcare and academic customers. Closely comparable to GBL's ROSA-CHEM, ROSA-VOL, ROSA-BUF chemical reagent range and AQUA-ROSA water analysis kits, with overlapping distribution into hospital and research labs.
• HiMedia Laboratories: India-based specialty manufacturer of microbiology culture media, stains, disinfectants and lab reagents sold globally. Closest comparable to GBL in product mix (microbiology stains, bacteriology reagents, lab disinfectants) and in serving emerging-market hospital/diagnostic lab customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/gbl-g%C3%BCl-biyoloji-laboratuvar%C4%B1-san.
• Instagraminstagram.com/gulbiyolojilab

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 record

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 Gbl Gül Biyoloji Laboratuvarı San.