Discover the power of search engine advertising (SEA).

We are W4, your DACH SEA agency with offices in Zurich and Dresden, where efficiency meets success!

With search engine advertising (SEA) campaigns, businesses of all sizes can achieve visibility growth, targeted reach and remarkable ROI. Whether you're a small start-up or a large enterprise, our SEA services are designed to boost your online presence, capture your audience's attention, and generate conversions. Discover how our expertise can transform your digital marketing strategy and deliver results.

Your Experts for Digital Marketing and SEA strategies.

At W4, we're not just an SEA agency; we're your strategic partner for digital success. Our team of experts specializes in helping businesses succeed in the world of online advertising. With our extensive knowledge and experience, we develop customized strategies that get results and ensure a strong return on your investment.

Why you should choose W4 as your trusted SEA partner agency:

Tried & Tested Expertise

Our team consists of experienced professionals in Google Ads, Bing, Baidu Ads and YouTube Ads inside out. We have successfully managed numerous campaigns and achieved exceptional results for our clients.

Customized Solutions

We understand that every business is unique. Our approach is extremely personal, and we develop advertising strategies based on your specific goals, target audience and industry.


Global Reach

Whether you're looking to expand your presence locally or globally, our expertise can help you reach the right audience, wherever they are.


We focus on open communication and complete transparency. You have access to real-time data and reports, so you're always informed about how your campaigns are performing.

Our SEA Services

Google Ads

Google Ads, formerly Google AdWords, is one of the most versatile and widely used advertising platforms on the Internet. It allows companies to create and run ads on Google's search engine and the Google Display Network, reaching a wide target audience.

Our SEA experts can target relevant keywords and phrases for your products or services to ensure your ads appear when users search for related terms.

Google Ads supports various ad formats, including text ads, display ads, video ads (on YouTube), and shopping ads, making it suitable for different marketing goals.

Baidu Ads

Baidu is the leading search engine in China, and Baidu Ads is its associated advertising platform.  Baidu advertising is a crucial part of the SEM strategy for any business targeting a Chinese-speaking audiences, whether they operate locally or internationally.

Our team of native-Chinese speakers SEA experts creates content tailored to the culture of your Chinese audience, enhancing the chances of engagement and conversions.
Baidu Ads allows us to reach users in specific regions of China, making it a valuable tool for our SEA strategies.

YouTube Ads

As part of our comprehensive Search Engine Advertising (SEA) suite, we also offer YouTube Ads services to ensure our partners can leverage the full potential of this dynamic platform.

YouTube, a global giant in video sharing, offers businesses an exceptional opportunity to reach a large and diverse audience through video ads - a key component of our SEA strategy.

Our YouTube Ads services are designed to empower brands to share their unique stories through visually captivating content. With a range of ad formats, including skippable in-stream ads, non-skippable in-stream ads, and bumper ads, we offer tailored solutions to achieve specific marketing goals.

In which industries is SEA needed?

At W4, we recognize the diverse and unique needs of businesses in different industries. Our search engine advertising (SEA) expertise spans a wide range of sectors, allowing us to address the specific needs and challenges that each industry presents.

Our industry focus includes, but is not limited to:


SEA For Manufacturing

For manufacturing companies, our SEA strategies optimize visibility and generate leads to ensure your products and services reach the right audience.

SEA for Mechanical Industry

We understand the intricacies of engineering companies and offer customized solutions to connect your business with other decision makers and industry professionals.

SEA for Automotive Industry

In the highly competitive automotive industry, our SEA expertise drives brand awareness and customer engagement to ensure you stay one step ahead.

SEA for Pharma Industry

Compliance and accuracy are paramount in the pharmaceutical industry. Our SEA strategies comply with industry regulations and promote your products to the right healthcare professionals and patients.

SEA for Other Industries

We've had the privilege of working with companies across a wide range of industries. Whether you're in technology, healthcare, finance or any other industry, our customizable approach ensures your unique goals are met.

Our SEA Success Stories


As a digital marketing partner for Asendia Hong Kong since March 2020, W4 provides customized SEM solutions including Baidu, Line and Google Ads management to maximize reach in Hong Kong, China, Singapore, New Zealand and Australia.


Our comprehensive support for Robatech includes technical and content adjustments to the website, SEO optimizations, and setting up and optimizing advertising campaigns to strengthen your online presence.

BMG Labtech

Since February 2023, BMG LABTECH has trusted W4 to manage their Google Ads account. Our SEM experts optimize high-budget ad campaigns worldwide in nine languages and look forward to a long-term partnership to help BMG achieve their goals.

Customer Reviews

Satisfied customers like to come back and become partners.

Zuverlässiger Partner mit vielseitigem Know-How

W4 ist unser Partner bei den Themen Marketing Automation, CRM, Website, SEA und Content Creation. Sowohl Projektbasierte als auch wiederkehrende Aufträge werden zuverlässig und in hoher Qualität ausgeführt. Die Zusammenarbeit und Absprache gestaltet sich dabei immer angenehm und unkompliziert. Wir schätzen den grossen Erfahrungsschatz von W4 und die daraus entstehenden wertvollen Inputs zu unseren Aufgabengebieten.

Paid Advertising, content creation, crm implementation, and website development


Fast and Friendly Service
Within only 2-3 days, my request has been edited in a very professional way. I like the easy handling of the W4 online portal to upload and therefore easily share contents. I'm looking forward to our next cooperation.

Jasmin Döbeli

Ting and her team has been helping p44 China marketing including WeChat, event execution, give away production, Digital ads/SEO. What I would like to appreciate is that everyone of W4 team is really closely working with p44 China field marketing person to support him every single day! I am looking forward to continuous collaboration for next year (I would love to drive more digital area for next year). Thank you!



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What is SEA?
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What is the difference between SEA and SEM?
Which strategies do you use to maximize the efficiency of SEA campaigns?
How do you take local and regional aspects into account in search engine advertising campaigns (SEA)?
How do you analyze the performance of SEA campaigns?


Sarah Wilhelm
Sarah Wilhelm
+41 44 562 49 39
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Angelika Gmeiner
Angelika Gmeiner
Business Development DE
+49 351 85034886
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