Looking for a SEA agency in Lyon that can generate more leads, sales, or revenue without turning your Google Ads budget into a money pit? Not all agencies work the same way. Some prioritize volume, others profitability, and some specialize in specific sectors or large-scale accounts.

In this selection, we have identified five SEA agencies based in Lyon or with a strong presence in the Lyon market. We analyzed their positioning, strengths, specialties, and the types of businesses they are best suited for. The goal is not to name one "universally best" agency, but to help you find the one that truly aligns with your objectives.

5-point summary

• SEA remains the fastest channel for generating qualified leads when managed correctly.
• A good agency doesn't just manage Google Ads : it tracks conversions, optimizes landing pages, and focuses on profitability.
• The best partners think in terms of acquisition cost and revenue, not just CPC or click-through rates.
• For an SME, expect to pay between €1,000 and €5,000 in monthly fees, plus your media budget.
• The choice depends primarily on your maturity : B2B lead generation, e-commerce, local acquisition, or multichannel strategy.

Our selection criteria

We prioritized agencies that demonstrate:

• recognized expertise in Google Ads and Microsoft Ads;
• a performance-oriented approach rather than a volume-based one;
• public references or documented client case studies;
• the ability to support SMEs and mid-market companies;
• proficiency in tracking (GA4, GTM, CRM, attribution);
• a clear methodology for campaign management.

1. Growth Room

What they do

Growth Room supports companies looking to turn SEA into a true growth engine. The agency goes beyond managing Google Ads campaigns: they also work on landing pages, tracking, performance measurement, and conversion optimization.

Their approach is based on rapid experimentation, detailed data analysis, and continuous improvement of acquisition costs.

Strengths

• Revenue-driven management rather than volume-focused
• Strong expertise in Google Ads and tracking
• Landing page optimization
• Simple, business-oriented reporting
• Excellent synergy with SEO

What we liked

A highly pragmatic approach where every euro invested must produce a measurable result. Campaigns evolve quickly thanks to short optimization cycles.

Ideal for

SMEs, mid-market companies, B2B SaaS, e-commerce, and businesses looking for an agency capable of sustainably improving their marketing profitability.

2. Convertix

What they do

Convertix is one of the best-known agencies in Lyon for digital acquisition challenges. The team works on Google Ads, Microsoft Ads, Social Ads, and analytics with a strong performance-driven culture.

The agency works with both SMEs and larger corporate groups.

Strengths

• Extensive Google Ads experience
• Analytics and data expertise
• Management of large-budget accounts
• Strategic support

What we liked

A solid methodology and extensive experience with complex accounts requiring rigorous monitoring.

Ideal for

Companies that already have a significant SEA budget and want to structure their acquisition.

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3. 410 Gone

What they do

Based in Lyon, 410 Gone has been supporting companies with their Google Ads campaigns since 2017. The agency relies on three complementary divisions—e-commerce, SEO, and paid acquisition—to build strategies where different channels work in tandem.

Strengths

• Google Ads expertise
• Organization centered on SEO, SEA, and e-commerce divisions
• Data-driven approach
• Holistic view of acquisition

What we appreciate

The synergy between organic search and paid campaigns, which allows for a holistic approach to acquisition rather than looking at each channel in isolation.

Best for

Companies looking for support with an acquisition strategy that combines SEO, SEA, and e-commerce.

4. Atelier Chose & Co

What they do

Atelier Chose & Co supports Lyon-based companies with their paid and organic search strategies. The agency is a Google Partner and focuses on managing Google Ads campaigns, audience targeting, and remarketing initiatives.

Strengths

• Over twenty years of experience in digital marketing
• Google Partner certification
• SEO and SEA expertise
• ROI-driven campaign management

What we like

A long-standing presence in the Lyon market and a positioning focused on Google's primary acquisition channels.

Best for

Companies looking for a locally established agency with proven expertise in SEO and SEA.

5. Web-Konseil

What they do

Web-Konseil supports companies in the Rhône-Alpes region with the setup and optimization of Google Ads and Microsoft Advertising campaigns. The agency tailors campaign structures to each client's specific industry and objectives.

Strengths

• Google Ads and Microsoft Advertising expertise
• Strong knowledge of the regional business landscape
• Personalized support
• Strategies tailored to specific industries

What we value

A local approach for businesses looking to work with a partner based in their region.

Ideal for

SMEs and regional businesses seeking local SEA support.

How to choose your SEA agency?

Not all businesses have the same needs.

If your goal is to generate leads quickly, prioritize an agency that also masters landing pages and conversion tracking.

If you already have significant traffic, ensure the agency focuses on bidding, audiences, negative keywords, and ad testing rather than simply increasing the budget.

If you are investing several thousand euros per month, always ask for:

• a conversion measurement strategy;
• a monthly optimization plan;
• profitability-oriented metrics (CPA, ROAS, revenue);
• reporting that is understandable for management.

Finally, prioritize an agency capable of collaborating with your sales or CRM teams to measure actual sales generated, rather than just form submissions.

Mistakes to avoid

• Choosing an agency based solely on their fees.
• Evaluating performance based solely on the number of clicks.
• Neglecting conversion tracking.
• Launching Google Ads with unconvincing landing pages.
• Increasing the budget before optimizing existing campaigns.

Why does Growth Room come out on top?

SEA has become much more complex than it was a few years ago. High-performing campaigns now rely as much on the quality of tracking, landing pages, and creative assets as they do on ad settings.

Growth Room stands out with a highly business-oriented approach: decisions are data-driven, with a simple goal—to sustainably improve acquisition costs and generated revenue. For companies looking for a partner capable of going beyond simple Google Ads management, it is currently one of the most compelling options in Lyon.