LADIS

What LADIS does

LADIS is a South Korean direct-to-consumer hardware brand operated under tAB (주식회사 티에이비), headquartered in Daejeon, that sells portable UV-C sterilization products targeted at individual consumers and emerging-market water sanitation needs. The e-commerce site (ladis.co.kr / en.ladis.co.kr) launched on December 22, 2020, and ships globally to dozens of countries. The product line consists of three hardware SKUs — a cap-type UV sterilizer that screws onto standard PET bottles (₩120,000), a tumbler-style LADIS Bottle portable UV sterilizer (₩150,000), and an updated V2 model with USB-C charging and touch controls launched in 2025 (₩88,000) — plus recurring consumables (UV lamps at ₩10,000 and replacement caps at ₩1,000) available via subscription/regular delivery. The company's underlying technology uses UV-C wavelength light to achieve claimed 99.9% bacterial elimination in approximately two minutes, with no chemicals required; the company markets itself as the world's first cap-type UV water sterilizer.

The business model is product-led growth through own-storefront e-commerce on Cafe24, with no third-party retail distributors disclosed. Pricing is in Korean Won with Korean domestic shipping free above ₩30,000 and international shipping rates varying by destination. Customer segments are primarily individual consumers (students, families with infants, health-conscious users seeking portable water and small-item sanitization) with a secondary development-world / SDG-aligned positioning targeting the 650 million people globally without reliable clean water access. The company holds CE, KC, FCC, and KCL certifications enabling legal sales in the EU, Korea, and the US, and is recognized as a prospective social enterprise by Korea's Ministry of Health and Welfare and Daejeon Metropolitan City. Revenue is generated through one-time hardware sales plus a subscription consumables layer, but no revenue figures, funding rounds, headcount, or enterprise customer logos are disclosed in the available data.

Name

LADIS

Legal name

주식회사 티에이비

Website

https://ladis.co.kr

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

1–10 employees

Short description

LADIS (a brand under tAB, headquartered in Daejeon, South Korea) sells portable UV-C water and surface sterilization hardware — a cap-type PET-bottle sterilizer and a tumbler-style bottle sterilizer — direct-to-consumer via its own e-commerce storefront, serving individual consumers globally and addressing developing-world clean water access under UN SDG 6.

Ownership category

akta.pro rank

Product category

Portable UV Sterilization Devices

NAICS

Electric Lamp Bulb and Other Lighting Equipment Manufacturing (335139), Electric Lighting Equipment Manufacturing (3351)

SIC

Specialty Cleaning, Polishing And Sanitation Preparations (2842)

akta.pro industry

PRIMARYCRAJAJAJ

UV Water Purification Systems (Residential)

Consumer Products & Retail/Household Products & Cleaning Supplies/Water Filtration & Household Water Treatment

SECONDARYCRAJAJAH

Replacement Filter Cartridges & Consumables

Consumer Products & Retail/Household Products & Cleaning Supplies/Water Filtration & Household Water Treatment

SECONDARYHSAOAIAI

UV Germicidal Light (UV-C) & HVAC Disinfection Systems

Home & Personal Services/Plumbing, Electrical & HVAC Services/Air Duct Cleaning, Ventilation & Indoor Air Quality Services

Keywords

• UV water sterilization
• Portable UV sterilizer
• Cap-type water purifier
• UV-C surface sanitizer
• Consumable UV lamps

Headquarters

HQ city

Daejeon

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. UV Sterilizer Hardware Sales: One-time hardware sales of LADIS cap-type water sterilizer (₩120,000), LADIS Bottle portable sterilizer (₩150,000), and LADIS Bottle V2 (₩88,000). Revenue is generated through direct e-commerce sales on the company's website, with both domestic Korean and international shipping options.
2. Consumables Sales: Recurring consumable products including UV lamps (₩10,000) and bottle caps/lids (₩1,000). The company offers a regular delivery (subscription) option for consumables, providing recurring revenue from the existing customer base.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

LADIS designs, manufactures, and sells portable UV-C light-based sterilization devices for drinking water and small surface items, plus consumable replacement parts. The portfolio includes a cap-type water sterilizer that screws onto PET bottles, a tumbler-style portable UV sterilizer (original and V2 with USB-C and touch controls), and replacement UV lamps and bottle caps/lids. All products use UV-C light to eliminate 99.9% of bacteria in approximately 2 minutes without chemicals.

Product overview

LADIS is a portable UV-C light-based water and surface sterilization product line developed by tAB (team ALPHA BEREITER). The portfolio consists of three main products: the Cap-type Drinking Water UV Sterilizer (마개형), which screws onto standard PET water bottles; the LADIS Bottle Portable UV Sterilizer, a tumbler-style multi-purpose device; and the Bottle-type Portable UV Sterilizer V2, an updated handheld version with USB charging and touch controls. All products use UV-C wavelength technology to sterilize water and small items (masks, accessories, infant products, smartphones) within approximately 2 minutes. The product ecosystem is supported by consumable components (UV lamps and bottle caps/lids). LADIS was developed to address waterborne diseases in developing countries as part of UN Sustainable Development Goal 6 (clean water and sanitation).

Differentiator

Problem solved

Functional benefit

Products and services

• LADIS Cap-type Drinking Water UV Sterilizer (라디스 마개형 식수 자외선 살균기) A cap-type UV-C sterilization device that screws onto standard PET plastic water bottles as a replacement lid, sterilizing the drinking water and bottle interior using UV-C light to suppress bacterial multiplication. Targeted at consumers in regions without reliable clean-water access and at general consumers seeking portable chemical-free water sterilization.
• LADIS Bottle Portable UV Sterilizer (라디스 보틀 휴대용 자외선 살균기) A tumbler-style multi-purpose portable UV-C sterilization bottle that functions as a reusable drinkware container while sterilizing water, masks, baby products, accessories, pens, smartphones, toothbrushes, and other small items in approximately 2 minutes using UV-C light. For general consumers, parents, travelers, and outdoor users.
• LADIS Bottle-type Portable UV Sterilizer V2 (라디스 보틀형 휴대용 자외선 살균기 V2) An updated handheld UV-C sterilization bottle with ergonomic handle, USB C-Type charging, and touch-button interface. Sterilizes water, masks, accessories, and small items in approximately 2 minutes using UV-C light, while functioning as a reusable tumbler for daily water consumption.
• LADIS UV Lamp Consumable (소모품 라디스 UV램프) A replacement UV-C lamp consumable required for continued operation of the LADIS cap-type and bottle-type UV sterilizers, available as a one-time purchase or via a discounted regular-delivery subscription for existing customers.
• LADIS Bottle Cap/Lid Consumable (소모품 라디스 보틀 캡/뚜껑) A replacement cap/lid for the LADIS Bottle portable UV sterilizer, allowing direct drinking from the sterilized container. Sold as a consumable accessory for existing customers.

Quantifiable outcome

• 99.9% bacterial elimination in approximately 2 minutes of UV-C exposure
• +1 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators2 records

Recent moves5 records

Expansion highlights6 records

Broad incumbents

• Coway: Coway is the leading Korean water-purifier and home appliance company with door-to-door distribution and rental models. It is a broad incumbent competitor for LADIS in the Korean residential water-treatment market.
• PUR: PUR makes faucet-mounted and pitcher water filters widely distributed through US retail. It is a broad incumbent competitor in residential water filtration, with similar price-band hardware.
• Brita: Brita is the dominant consumer water-filtration brand (pitchers, bottles, replacement filters). It competes broadly with LADIS in residential drinking-water treatment, with vastly larger retail distribution and brand recognition.
• Chungho Nais: Chungho Nais is one of Korea's largest water purifier companies with extensive door-to-door service. It is a broad incumbent that competes with LADIS in the Korean residential water-treatment market.

Direct peers

• Sawyer Products: Sawyer makes portable water filtration products (squeeze, gravity, inline) for outdoor and humanitarian use. It directly competes with LADIS for hikers, travelers, and developing-world water-sanitation customers.
• Katadyn: Katadyn makes portable water filters and purifiers (microsome, ultra filtration, UV) for outdoor and emergency use. It overlaps with LADIS in the portable UV water purification category.
• LifeStraw: LifeStraw makes personal and household water filtration and purification products targeting both outdoor consumers and developing-world communities. Its personal water purifier line directly competes with LADIS for the SDG-aligned clean-water mission customer.
• LARQ: LARQ makes self-cleaning UV-C water bottles and pitcher systems for consumers. It is the closest direct competitor to LADIS's portable UV sterilization bottle, with a similar product-led DTC motion and overlapping target customers.
• SteriPEN (by Hydro-Photon): SteriPEN makes handheld UV light water purifiers for outdoor, travel, and emergency use. It directly competes with LADIS on portable UV water sterilization, particularly for travelers and developing-region users needing chemical-free purification.

Emerging players

• Glaive (UV-C sterilization): Glaive is an emerging consumer UV-C sterilization product company focused on phones and personal items. It is comparable to LADIS as a UV-C consumer hardware startup with a similar product-led growth motion.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/t.ab_official
• Facebookfacebook.com/LADIS-100063520463155
• LinkedInlinkedin.com/company/tabladis

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 LADIS