Once Aligner

What Once Aligner does

Once Aligner is a Polish clear-aligner company founded in 2020 and headquartered in Wrocław, Poland, that designs and distributes custom-manufactured medical-grade clear aligners as an alternative to fixed orthodontic braces. Its core product line comprises Once Aligners (the active treatment product), Once Retainers (post-treatment retention aligners), and Whitening Aligners (cosmetic finishing trays). Production is to medical-device specification and is supported by a digital workflow built around 3D intraoral scanning at the point of care, specialist-developed treatment planning, and custom fabrication.

The company sells exclusively through a network of 70+ authorized dental and orthodontic clinics operating in Poland, Germany, Austria, and Norway; pricing is quote-based and determined at the clinic level rather than published by Once Aligner. Patients initiate treatment via an intraoral scan at an authorized clinic, after which Once Aligner's specialists create an individualized treatment plan and ship the aligner set to the patient. Supporting digital infrastructure includes a dedicated clinician portal (oncelaboratory.com) and patient-facing iOS and Android applications.

Operationally, Once Aligner is a small company (9 disclosed employees) operating under a two-entity Polish legal structure — managing entity Once Sp. z o.o. and operating entity Once Sp. z o.o. sp. k. — that announced a domestic merger in November 2025 consolidating both entities under Once Sp. z o.o. The company is privately held, has not disclosed external institutional funding, and reports no revenue figures in the available materials.

Name

Once Aligner

Legal name

Once Spółka z ograniczoną odpowiedzialnością Spółka komandytowa

Website

https://oncealigner.com

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

1–10 employees

Short description

Once Aligner is a Polish clear-aligner company (founded 2020) that designs and distributes custom medical-grade aligners, retainers, and whitening trays exclusively through a network of 70+ authorized dental clinics in Poland, Germany, Austria, and Norway.

Ownership category

akta.pro rank

Product category

Orthodontic Devices

NAICS

Dental Laboratories (339116)

SIC

Orthopedic, Prosthetic & Surgical Appliances & Supplies (3842)

akta.pro primary industry

Clear Aligner Orthodontics (HLABABAD)

akta.pro secondary industries

Orthodontic Appliances & Aligners Fabrication (HLABAJAD), Medical & Dental 3D Printing Services (patient-specific devices, dental labs) (IMAAADAG), Orthodontic & Aligner Care (Cleaners, Cases, Wax) (CRABAFAH)

Keywords

• Clear aligner systems
• Orthodontic medical devices
• Digital orthodontic treatment
• Custom dental aligners
• Orthodontic retainers

Headquarters

HQ city

Wrocław

HQ country

Poland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Clear Aligner Sales: Once Aligner sells custom clear aligners and retainers through authorized dental clinic partners. Patients receive treatment at clinics following a consultation, intraoral scan, and treatment plan. Aligners are provided as a medical product ordered by specialist physicians.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Once Aligner designs, plans, and manufactures custom clear orthodontic aligners as a medical product. Treatment is delivered through authorized dental clinics that perform 3D intraoral scanning, while Once Aligner specialists produce the digital treatment plan and fabricate the personalized aligners, retainers, and whitening trays used to straighten teeth and maintain results.

Product overview

Once Aligner is a Polish orthodontic company that offers a suite of clear aligner products for teeth straightening. The core offering is the Once Aligners system, a medical-grade clear aligner product made to order by specialist doctors using digital technologies and 3D intraoral scanning. The product portfolio includes three offerings: Once Aligners (the main treatment aligners), Once Retainers (stiffer retaining aligners to maintain treatment results), and Whitening Aligners (custom trays for post-treatment teeth whitening). The products work as a treatment sequence: aligners straighten teeth under specialist supervision, retainers maintain the corrected position, and whitening aligners enhance the final aesthetic result.

Differentiator

Problem solved

Functional benefit

Brands

• Once Aligners: Esthetic, effective, and comfortable clear aligners as an alternative to fixed braces, made from certified medical-grade materials without toxic BPA.
• Once Retainers
• Whitening Aligners

Products and services

• Once Aligners Custom-fabricated, medical-grade clear aligners used as an aesthetic alternative to fixed braces for orthodontic treatment. Each aligner is made to order by medical specialists based on a 3D intraoral scan and a digital treatment plan, designed for precise fit, fast visible results, and comfortable wear.
• Once Retainers Custom-designed retaining aligners used after completion of orthodontic treatment to maintain tooth position. Visually similar to Once Aligners but manufactured from a stiffer material to prevent unwanted shifting of teeth over time.
• Whitening Aligners Customized whitening trays used after orthodontic treatment to professionally whiten newly straightened teeth. Individually fitted aligner-style trays deliver a professional-grade bleaching solution to enhance the final aesthetic result.

Quantifiable outcome

• First effects visible after a few weeks of treatment

Named customers8 records

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

Partnerships

Twelve partnerships are on record, tiered minor.

• KISS Dental CareminorChannel Partner/ Reseller/ DistributorAuthorized provider of Once Aligner treatments. Located at Józefa Sierakowskiego 4a, lokal 4, 03-712 Warszawa, Poland. Represents the clinic network distribution channel through which Once Aligner products are delivered to end consumers.
• Platinum KlinikaminorChannel Partner/ Reseller/ DistributorAuthorized provider of Once Aligner treatments with locations in Wrocław (Zwycięska 43 and Księcia Witolda 49). Represents the clinic network distribution channel through which Once Aligner products are delivered to end consumers.
• Centrum Stomatologii JoniecminorChannel Partner/ Reseller/ DistributorAuthorized provider of Once Aligner treatments. Located at Al. Partyzantów 15/17, 96-300 Żyrardów, Poland.
• MEDCOMminorChannel Partner/ Reseller/ DistributorAuthorized provider of Once Aligner treatments. Located at Wojkowice ul. Zdrowa 6, 55-020 Żórawina, Poland.
• Stomatologia -NOVAminorChannel Partner/ Reseller/ DistributorAuthorized provider of Once Aligner treatments. Located at Bohaterów Warszawy 17/1, 70-372 Szczecin, Poland.
• Smile ProjectminorChannel Partner/ Reseller/ DistributorAuthorized provider of Once Aligner treatments. Located at Szkolna 2/8, 55-093 Kiełczów, Poland.
• EstedentminorChannel Partner/ Reseller/ DistributorAuthorized provider of Once Aligner treatments. Located at Aleja Komisji Edukacji Narodowej 96, 02-777 Warszawa, Poland.
• OrthoclinicminorChannel Partner/ Reseller/ DistributorAuthorized provider of Once Aligner treatments. Located at ul. Przyjaźni 56/U3, 53-030 Wrocław, Poland.
• Dental Sense OslominorChannel Partner/ Reseller/ DistributorInternational authorized provider of Once Aligner treatments in Norway. Located at Østensjøveien 14, 0661 Oslo, Norway. Represents geographic expansion into Nordic markets.
• dr med. dent. Thomas CzekallaminorChannel Partner/ Reseller/ DistributorInternational authorized provider of Once Aligner treatments in Austria. Located at Josef Speckbacherstraße 9, 6300 Wörgl, Austria. Represents geographic expansion into Austrian market.
• Sues DentalminorChannel Partner/ Reseller/ DistributorInternational authorized provider of Once Aligner treatments in Germany. Located at Bergstrasse 44/1, 74321 Bietigheim-Bissingen and Barmseestrasse 2, 74321 München, Germany. Represents geographic expansion into German market.
• oncelaboratory.comminorChannel Partner/ Reseller/ DistributorDedicated portal for doctors and dental professionals. The 'For doctors' section redirects to oncelaboratory.com, suggesting a separate platform for authorized clinic partners to access ordering, treatment planning tools, and professional resources.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• DrSmile: Berlin-based clear aligner brand that sold aligners through partner dental clinics across Germany and Europe with a digitally-driven patient journey. Closely comparable business model to Once Aligner and a direct competitor in the German and DACH markets Once now operates in.
• Scheu-Dental (CA Clear Aligner): German dental manufacturer offering the CA Clear Aligner system sold through dental labs and orthodontic clinics in Europe. Closely comparable on product, channel, and European geographic footprint.
• Eon Aligner: Niche clear aligner brand offering custom aligners through dental clinics with a similar boutique positioning. Comparable product category, distribution model, and competitive tier to Once Aligner.

Emerging players

• Angel Align Technology: Chinese clear aligner manufacturer expanding internationally with comparable product and clinic-distributed go-to-market. A direct competitor emerging into Once Aligner's potential European expansion markets.
• SmileSet: U.S.-based direct-to-consumer clear aligner brand operating in a similar size band to Once Aligner and competing for the same cost-conscious patient demographic. Comparable in scale and digital-first operating model.

Broad incumbents

• SmileDirectClub: Pioneer direct-to-consumer clear aligner brand that disrupted the category before its 2023 bankruptcy; defines the alternative go-to-market model Once Aligner could face in Poland or in future DTC channels.
• 3M Oral Care (Clarity Aligners): Multi-national conglomerate with the Clarity clear aligner system sold through orthodontists and dental labs. Comparable aligner product, broader portfolio, and serves the same clinician channel Once Aligner targets.
• Dentsply Sirona (SureSmile): Large dental equipment and orthodontics conglomerate offering the SureSmile clear aligner system alongside chairside hardware. Comparable to Once Aligner on the aligner product, but bundled within a much broader dental-equipment portfolio.
• Align Technology (Invisalign): Global market leader in clear aligners with Invisalign. Operates the same core category — custom clear aligners delivered through dental/orthodontic clinics — but at vastly greater scale and brand recognition, defining the competitive ceiling for Once Aligner.
• Straumann Group (ClearCorrect): Swiss dental implant leader that also markets the ClearCorrect clear aligner system through dental professionals globally. Directly comparable product (custom clear aligners via clinic channel) within a much larger dental-business portfolio.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights5 records

Customer concentration

• Facebookfacebook.com/oncealigner
• Instagraminstagram.com/once.aligner
• LinkedInlinkedin.com/company/once-aligner

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 Once Aligner