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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectoryAdvertising Agencies

Advertising Agencies

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10'546 companies found

Oculus Illustration GmbH Logo

Oculus Illustration GmbH 

Zurich · Since 2014

The core activity of Oculus Illustration GmbH is the creation of illustrations and visual content, particularly through the work of freelance illustrators and artists collaborating in the studio.

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Oddity Swiss Sàrl Logo

Oddity Swiss Sàrl 

Geneva · Since 2021

Oddity Swiss Sàrl is a digital marketing agency that designs and executes data-driven marketing strategies and omnichannel media and performance campaigns. Services include data analytics and tracking, media planning, creative content production, and commerce and CRM solutions.

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Oeil Absolu Sàrl Logo

Oeil Absolu Sàrl 

Carouge Ge · Since 2019

The core activity of Oeil Absolu is the creation and editing of images and visual identities for companies, including: photo retouching and editing, logo creation and visual identity (branding), design of print materials (pre-press), color management and fine art printing of high-quality images. The company thus offers a comprehensive range of services in the field of visual communication and printing.

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Oeil pour Oeil, Miéville Logo

Oeil pour Oeil, Miéville 

Thônex · Since 2005

The company "Œil pour Œil" is a graphic design firm specializing in the creation of visual communication tools. The company's core activity includes the conception and implementation of graphic design projects, such as the design of logos, brochures, websites, and other visual elements.

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oema Oertli Marketing GmbH Logo

oema Oertli Marketing GmbH 

Amriswil · Since 2013

The OEMA Oertli Marketing GmbH offers services in the areas of administration, human resources management, marketing, project management, finance, databases, document and text design, as well as support for private individuals. The company's core activity is to support companies and projects through professional support and leadership assistance, taking over administrative tasks and relieving the core tasks of the executives.

Advertising AgenciesIT Consulting & Services
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OFFICINEBIT.CH SAGL Logo

OFFICINEBIT.CH SAGL 

Chiasso · Since 2003

OFFICINEBIT.CH SAGL provides digital services for the art sector. The company offers scientific consultancy on digital archiving of artworks and services such as digital archives, archive management and curation, web and communication services, photographic documentation and platforms like Artistwall and artchain.

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oficio sàrl Logo

oficio sàrl 

Geneva · Since 2018

The core activity of the company "oficio" is the creation of graphic design and visual communication for various clients and projects, particularly in the fields of culture, art and entertainment. The company creates visual identities, posters, brochures and other printed materials for festivals, theaters, museums and other cultural institutions.

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OHMY Studio GmbH Logo

OHMY Studio GmbH 

Biel/Bienne · Since 2019

The core activity of the company "Ohmy Studio" is the creation of creative solutions for brands and companies in the following areas: Visual Design (Print, Web, Motion), Branding and Corporate Design, Content creation for social media, Packaging Design, Animated films and Motion Design, Web design and digital campaigns. The company offers a wide range of services to support companies in developing their brand and communication.

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OH Solutions GmbH Logo

OH Solutions GmbH 

Sargans · Since 2022

Advertising AgenciesIT Consulting & Services
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OÏKO réalisations publicitaires Sàrl Logo

OÏKO réalisations publicitaires Sàrl 

La Chaux-De-Fonds · Since 2016

The core activity of Oïko is to provide services in the field of communication and marketing agency, particularly in the areas of graphic design and visual communication, marketing and advertising, creation of advertising materials and communication media (print and digital), and strategic consulting for companies and organizations. The company thus offers a comprehensive range of services to support companies and organizations in the development and implementation of their communication and marketing strategies.

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OLIBELL AG Logo

OLIBELL AG 

St. Gallen · Since 2016

The core activity of Trendcommerce (Schweiz) AG is the creation and implementation of customer-focused marketing strategies, particularly in the field of direct marketing. The company supports its customers in better understanding their target groups and developing targeted approaches to achieve stronger customer loyalty and satisfaction.

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Olive Grove Brand Management Sàrl Logo

Olive Grove Brand Management Sàrl 

Duillier · Since 2012

The core activity of Olive Grove is the creation and implementation of brand strategies and activations for companies, sponsors and sports organizations, particularly in the sports and entertainment sector. This includes services such as brand development, digital brand management, brand activation, sponsorship engagement and event design. The company supports its clients in strengthening their brand, increasing their visibility and boosting their commercial success.

Management ConsultingAdvertising Agencies
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Oliver Gemperle GmbH Logo

Oliver Gemperle GmbH 

Zurich · Since 2007

The Oliver Gemperle GmbH provides fundraising and communication services for non-profit organizations (NPOs). The core activities include developing fundraising strategies, creating advertising materials such as donation appeals, brochures, and social media campaigns, as well as implementing campaigns across all channels. The company supports NPOs in acquiring new donors, retaining existing supporters, and mobilizing eligible voters.

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Oliver Maier - Illustration Logo

Oliver Maier - Illustration 

Erlinsbach So · Since 2021

The company's core activity is the creation of illustrations and visual content for various clients and projects, including editorial illustrations, explanatory videos, animations, storyboards, and key visuals. The company also offers services in the field of layout and communication design.

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O. Lottin agence Olidée Logo

O. Lottin agence Olidée 

Chézard-St-Martin · Since 2018

The core activity of Olidée consists in designing and implementing communication solutions through personalized objects, particularly in the field of promotional gifts, corporate fashion and signage. The company supports customers in developing tailored products that convey their brand and messages.

Advertising AgenciesWholesale - General Specialty Trade
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OLYMPIA MEDIA GROUP Sàrl Logo

OLYMPIA MEDIA GROUP Sàrl 

Geneva · Since 2020

OLYMPIA MEDIA GROUP Sàrl provides media consulting and representation services for publishers and brands, including business development, licensing strategy, audience analysis, content strategy and digital transformation.

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Omar Beltraminelli Multimedia Design Logo

Omar Beltraminelli Multimedia Design 

Giubiasco · Since 2016

The core activity of OBMDesign is the development of digital products and experiences, particularly in the areas of web development, web design, mobile app development, and digital marketing. The company supports small businesses, startups, and other brands in implementing their ideas into functional solutions and offers full-service solutions for the design of digital products and experiences.

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OMNI Production Sàrl Logo

OMNI Production Sàrl 

Tavannes · Since 2023

The core activity of OMNI is the creation of digital communication solutions, specifically: video and photo content production, social network management, and advertising campaigns. The company positions itself as a digital communication agency and offers services such as design, branding, and web design.

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OM oficina marketing GmbH Logo

OM oficina marketing GmbH 

Unterkulm · Since 2015

OM oficina marketing GmbH is a marketing and media services company that places and manages print and online advertising. Services include print formats (ads, inserts, advertorials, press releases), online formats (IAB-standard formats, promotions, branding and sales campaigns) and media planning/placement.

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ONACLOUD GmbH Logo

ONACLOUD GmbH 

Gossau Zh · Since 2007

The core activity of ONACLOUD is the provision of services in the field of digital agency, including the development of websites, content creation, branding, marketing, social media and other digital services for companies in Switzerland.

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LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
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.
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