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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
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12'782 companies found

OJi Design Sàrl Logo

OJi Design Sàrl 

Lausanne · Since 2021

The core activity of Oji Design is to provide services in the field of construction, particularly in the following areas: Coffrage / Armatures: creation of individual plans for formwork and reinforcement using software such as Autocad and Cadwork. Fire protection: creation of plans for fire protection concepts. Building pollutant diagnostics: conducting diagnoses and analyses of pollutants in buildings, particularly in the context of renovation and conversion projects. The company offers these services as a subcontractor and emphasizes quality, speed, reliability, and competitiveness.

Civil Engineering
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OK Construction Sàrl Logo

OK Construction Sàrl 

Lausanne · Since 2013

The core activity of OK Construction Sàrl is the provision of services in the construction industry, particularly in the new construction and renovation of properties in Switzerland. The company offers tailored solutions for construction and renovation projects, focusing on the use of sustainable materials and achieving the highest quality. Specific activities include: new construction of properties, renovation of properties, creation of customized solutions for construction and renovation projects, use of sustainable materials, and achievement of highest quality and reliability in all projects.

General Contractors
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olbaT Sàrl Logo

olbaT Sàrl 

Lausanne · Since 2021

The core activity of OLBAT is to provide services in the field of electrical engineering, particularly in the: * manufacturing of customized electrical switchboards * performing maintenance and repair work to ensure electrical safety and fire protection * installation and configuration of electrical systems and equipment. The company thus offers a combination of manufacturing, installation and maintenance of electrical systems and equipment.

Electrical Industry
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Olga Cafiero, photographe et retoucheuse Logo

Olga Cafiero, photographe et retoucheuse 

Lausanne · Since 2011

The company's core activity is photography. Olga Cafiero is a photographer who presents her work in exhibitions and magazines and has already received several awards and distinctions.

Photography
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Olluri Sàrl Logo

Olluri Sàrl 

Lausanne · Since 2022

Olluri Sàrl provides construction, renovation and design services, including plastering and painting, external insulation, chape sèche, tiling, drywall and ceiling systems. The site also lists services such as decorative and acoustic ceilings, concrete ciré and perimeter insulation.

Flooring & TilingPainting & Plastering
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OLSBURGH SMILE FOUNDATION Logo

OLSBURGH SMILE FOUNDATION 

Lausanne · Since 2022

The core activity of the company "Olsburgh Smile Foundation" is the promotion and training in the field of dentistry, particularly orthodontics. This includes organizing conferences, seminars and training programs for dentists, orthodontists and dental assistants, as well as exchanging knowledge and experiences with international partners such as the University of Southern California.

Cultural & Educational Organizations
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olyfia.com Sàrl Logo

olyfia.com Sàrl 

Lausanne · Since 2020

The core activity of olyfia.com is to provide marketing, strategy and innovation services to start-ups and established companies. This includes: Branding: development of brand identities and stories; Consulting: market analysis, market entry strategies, product positioning and customer acquisition; Project management: support in the implementation of projects and team integration. The company supports customers in developing solutions to their challenges and helps them realize their ideas.

Management Consulting
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Olympic Broadcasting Services SA Logo

Olympic Broadcasting Services SA 

Lausanne · Since 2003

Olympic Broadcasting Services SA is the host broadcast organisation for the Olympic and Paralympic Games, producing the international live television, radio and digital feeds (International Signal/World Feed). The organisation designs, builds and operates the International Broadcast Centre (IBC) and provides technical and broadcaster services to Media Rights-Holders, including venue-based solutions to personalise coverage.

Film & TV ProductionRadio & TV Broadcasters
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Olympische und Paralympische Winterspiele Schweiz 2038 (OPWS2038) Logo

Olympische und Paralympische Winterspiele Schweiz 2038 (OPWS2038) 

Lausanne · Since 2024

The core activity of Swiss Olympic is the promotion and support of Swiss sports, particularly the representation of the interests of private-law organized sports and the creation of conditions for sporting success at the international level, as well as the dissemination and anchoring of Olympic values in society.

Sports Associations
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O Mýlos Sàrl Logo

O Mýlos Sàrl 

Lausanne · Since 2015

The core activity of O Mylos is in the field of gastronomy, specifically in the operation of a Greek take-away restaurant in Lausanne, Switzerland. The company offers traditional Greek dishes as well as innovative street food specialties, available both on-site and for take-out.

CateringRestaurants
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Ondefy SA Logo

Ondefy SA 

Lausanne · Since 2021

The core activity of Ondefy is to offer a platform for buying and selling cryptocurrencies, particularly its own token "The People's Coin" (also referred to as PEEP$). The platform allows users to purchase cryptocurrencies using various payment methods such as credit cards, bank transfers, Apple Pay, or Google Pay. Ondefy also provides a secure and user-friendly environment for cryptocurrency trading and makes information available on the security and risks of cryptocurrency trading.

FinTechSoftware Development
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One By Margot Hiller Logo

One By Margot Hiller 

Lausanne · Since 2024

The company's core activity is providing coaching services in the areas of health, wellness, and nutrition. The company offers personalized coaching and programs to support customers in achieving their health and wellness goals, particularly in the areas of nutrition, weight management, and stress reduction.

Coaching & Personal Development
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OneSecondDelivery Sàrl Logo

OneSecondDelivery Sàrl 

Lausanne · Since 2017

The core activity of OneSec is the development and deployment of artificial intelligence (AI)-controlled drones for the fast and cost-efficient delivery of food and goods, particularly in the area of food and e-commerce deliveries.

Logistics & Transport Companies
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Oneweek & Co. Sàrl Logo

Oneweek & Co. Sàrl 

Lausanne · Since 2009

The core activity of oneweek.ch encompasses services in the areas of accounting, taxation and human resources.

Fiduciary Offices
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ONSA ADVISORS SA Logo

ONSA ADVISORS SA 

Lausanne · Since 2019

The company offers two core activities: 1. **Family Office**: The company provides comprehensive services to wealthy families, including management of banking relationships, support for relocation of family members, administrative tasks and more. 2. **Investment Scouting**: The company proactively identifies investment opportunities for its clients and supports them in finding lucrative investments. In addition, the company also offers other services such as fiduciary services, tax consulting, corporate consulting and risk management.

Private Equity & Venture Capital
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OPAN concept SA Logo

OPAN concept SA 

Lausanne · Since 2017

OPAN concept SA is an engineering consultancy specializing in civil engineering, sustainable development and geographic information systems applied to road and rail infrastructures. Its services include project management (BAMO/DGT), design and construction supervision, asset management, technical expertise and consulting (e.g. CFUP, seismic, occupational safety), BIM and GIS solutions.

Technical Consulting & Engineering
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Opiano Sàrl Logo

Opiano Sàrl 

Lausanne · Since 2022

The company Opiano offers music lessons, particularly piano lessons, for adults in Lausanne. The core activity includes individual and collective courses, such as Initiation au piano, Cours de piano jazz and Atelier musical.

Cultural & Educational Organizations
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Optic 2000 Bessières SA Logo

Optic 2000 Bessières SA 

Lausanne · Since 2006

Optic 2000 Bessières SA is an optical and hearing-care retailer offering prescription glasses, sunglasses, contact lenses and hearing aids. The store provides vision and hearing assessments, fittings, maintenance (including ultrasonic cleaning), and warranty and payment options.

Opticians & Eyewear Retail
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OPTIC 2000 Lausanne SA Logo

OPTIC 2000 Lausanne SA 

Lausanne · Since 1974

OPTIC 2000 Lausanne SA provides optical and auditory services and retails eyeglasses, sunglasses, contact lenses and hearing aids, including eye examinations, fittings, maintenance and warranty services.

Opticians & Eyewear Retail
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OPTIC SWISS SERVICES SA Logo

OPTIC SWISS SERVICES SA 

Lausanne · Since 1998

The core activity of Optic Swiss Services SA is the operation of a central purchasing hub for optical products and services, particularly for independent opticians in Switzerland. The company offers its members access to preferred purchasing conditions with a wide range of suppliers, including eyewear manufacturers, opticians and contact lens laboratories. The goal is to support the financial independence of opticians and help them defend their margins.

Opticians & Eyewear Retail
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.