Kato Ladies Clinic

What Kato Ladies Clinic does

Kato Ladies Clinic (加藤レディスクリニック) is a single-site fertility hospital in Shinjuku, Tokyo, founded in 1993 by the late Kato Osamu (故 加藤 修) and operating as part of the Eienko Group (永遠幸グループ) network of affiliated fertility facilities. The clinic specializes in in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), egg freezing for unmarried women aged 25-39, fertility preservation for cancer patients, preconception health checks, and second-opinion infertility consultations, supported by an in-house embryology laboratory, a research and clinical genetics division, and an experienced medical team. Its technical stack includes a proprietary original oocyte retrieval needle developed in-house, a time-lapse incubator for continuous embryo monitoring, preimplantation genetic testing (PGT-A and PGT-SR), and an updated vitrification solution, with cumulative births of 70,193 recorded between 2000 and 2023 and reported 2024 fertilization and blastocyst development rates of 89.5% and 67.7% respectively. The business operates 365 days a year with extended weekday hours and generates revenue through a combination of Japanese national health insurance-covered treatments, self-pay premium plans including success-based pricing, examination and diagnostic services, and document issuance, distributing services via direct clinic appointments, an online reservation system, phone bookings, and a mobile app.

Name

Kato Ladies Clinic

Legal name

Kato Ladies Clinic

Website

https://towako-kato.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

11–50 employees

Short description

Kato Ladies Clinic is a Shinjuku, Tokyo-based fertility hospital specializing in IVF, ICSI, egg freezing, and fertility preservation, serving couples and unmarried women in Japan through a single 365-day clinic supported by an in-house embryology lab and proprietary clinical tools.

Ownership category

akta.pro rank

Product category

Fertility Treatment Services

NAICS

Family Planning Centers (62141)

SIC

Services-Specialty Outpatient Facilities, Nec (8093), Services-Offices & Clinics Of Doctors Of Medicine (8011)

akta.pro primary industry

Fertility, Reproductive Endocrinology & IVF Centers (HLAFAJAD)

akta.pro secondary industries

Reproductive Endocrinology & Infertility (IVF/Fertility) (HLAKAJAC), Fertility & Reproductive Endocrinology Telehealth (IVF/IUI, infertility evaluation) (HLALAHAA)

Keywords

• Infertility treatment services
• In vitro fertilization
• Egg freezing services
• Fertility preservation
• Reproductive medicine

Headquarters

HQ city

Shinjuku

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D

Revenue model

1. Medical Consultation and Treatment Services: Revenue from infertility consultations, oocyte retrieval, embryo transfer, and other medical procedures. Services are provided under both insurance-covered and self-pay arrangements.
2. Insurance-Covered Treatments: Standard infertility treatments covered by Japanese national health insurance including IVF and ICSI procedures
3. Self-Pay/Optional Medical Services: Premium treatments and services not covered by insurance, including advanced technologies and specialized testing
4. Examination and Diagnostic Services: Various fertility examinations including hormone tests, ultrasound, infectious disease screening, and genetic testing
5. Document and Certificate Issuance: Fees for medical certificates, diagnostic documents for insurance claims, and fertility treatment subsidy applications

Pricing tiers

Distribution channels3 records

Marketing channels4 records

Core offering

Kato Ladies Clinic is a fertility hospital in Shinjuku, Tokyo that provides in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), egg freezing, fertility preservation, preconception health checks, and second-opinion consultations. The clinic operates an in-house embryology laboratory that delivers advanced reproductive technologies including time-lapse embryo incubation, preimplantation genetic testing (PGT-A/PGT-SR), and vitrification, all delivered 365 days a year under both Japanese national insurance-covered and self-pay arrangements.

Product overview

Kato Ladies Clinic offers a comprehensive fertility treatment portfolio centered on in vitro fertilization (IVF) and egg freezing services, supported by advanced technologies including time-lapse incubators, preimplantation genetic testing (PGT-A/PGT-SR), and vitrification. The clinic operates as a single-facility medical practice with 365-day availability, providing core fertility treatments alongside supporting services such as nurse consultations, an in-house embryology laboratory, and the KLC mobile app for patient management. The product ecosystem includes specialized offerings like preconception health checks, second-opinion consultations, and fertility preservation for cancer patients, all delivered through their digital reservation and information systems.

Differentiator

Problem solved

Functional benefit

Brands

• KLC App: Mobile application for patients to manage appointments, view invoices, and receive notifications.
• KLC妊活ドック
• ストークラウンジ (Stork Lounge)

Products and services

• IVF/Fertility Treatment (体外受精・不妊治療)
• Egg Freezing for Unmarried Women (未婚女性の卵子凍結)
• KLC Preconception Health Check (KLC妊活ドック)
• Second Opinion Consultation (不妊治療相談外来)
• Fertility Preservation for Cancer Patients (がん患者様への妊孕性温存治療)
• Recurrent Implantation Failure Testing and Treatment (反復着床不成功検査・治療)
• Nurse Consultation (看護師相談)

Quantifiable outcome

• Cumulative births: 70,193 (2000-2023)
• +2 more outcomes

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Eienko Group (永遠幸グループ)coreStrategic or Co-development PartnerAffiliated medical group providing shared resources, expertise, and network for infertility treatment services. The clinic is part of a larger specialized fertility healthcare network.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Progyny: US fertility benefits and care management company partnering with clinics to deliver IVF services. Comparable in driving patient access to advanced fertility treatments, though operating as payer/benefits layer rather than clinic.

Broad incumbents

• Virtus Health: Large publicly listed fertility services network operating IVF clinics across Australia, Ireland, and the UK. Comparable as a scaled IVF operator with advanced lab technology and patient services.
• IVI-RMA Global: One of the world's largest reproductive medicine groups operating IVF clinics across Europe, the Americas, and the Middle East. Comparable in providing premium ART services with proprietary protocols.
• Genea Biomedx: Australian-headquartered global fertility group operating IVF clinics and embryology technology products. Comparable in offering advanced ART (time-lapse, vitrification) to patients through clinic networks.

Direct peers

• Oak Clinic (オーククリニック): Japanese fertility clinic group with multiple locations providing IVF, ICSI, and reproductive medicine. Closely comparable to Kato in treatment portfolio and scale.
• St. Mother Fertility Clinic (杉山産婦人科): Major Tokyo-based fertility and obstetrics clinic offering IVF, ICSI, and egg freezing. Highly comparable to Kato in service mix, geography, and Japanese patient base.
• Hanabusa Women's Clinic (英ウィメンズクリニック): Specialty IVF clinic in Kobe and Tokyo offering full ART services including PGT and time-lapse monitoring. Directly comparable as a Japanese fertility specialist with advanced technology.
• IVF Osaka Clinic (IVF大阪クリニック): Specialized fertility clinic in Osaka offering IVF, ICSI, and egg freezing. Comparable service offering and clinical positioning, though geographically concentrated in Kansai rather than Kanto.

Others

• CooperSurgical (IVF segment): Major supplier of ART lab consumables, media, and devices (including time-lapse and vitrification solutions) to fertility clinics worldwide. Comparable as enabling provider of the same technology stack Kato deploys.

Regional players

• Eien Koh Group (永遠幸グループ): Parent network of fertility clinics that Kato Ladies Clinic belongs to. Comparable as a Japanese fertility services operator under the same corporate umbrella.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/kato_ladies_clinic_official
• LinkedInlinkedin.com/company/kato-ladies-clinic

Revenue estimate

Valuation estimate

Number of profiles

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 Kato Ladies Clinic