🎯 The 12 Best SEA Agencies in 2026: How to Choose?

Entrusting your Google Ads budget to an agency does not change things overnight: the real test comes after a few months, when the cost per acquisition drops and ROI becomes readable. The best SEA agencies are not all alike: some make Google Ads their core business, others integrate it into a broader growth offering.

This ranking brings together 12 French agencies selected by the Doko team — a Lyon-based Google Partners agency qui pilote elle-même des campagnes Search, Shopping et Performance Max. Vous y trouverez aussi les critères pour évaluer une agence SEA et les market rates.

Key takeaways

• This ranking of the best SEA agencies is an editorial selection by Doko, not a calculated score.
• The 12 agencies cover two profiles: Google Ads specialists and growth agencies that integrate SEA.
• A good SEA agency is recognisable by three signals: verified Google Partner badge, verifiable case studies, pricing transparency.
• Indicative benchmark: a media budget often starts at around €1,500 to €5,000 per month, excluding agency fees.
• Three remuneration models dominate: percentage of media budget, monthly retainer, daily rate.

🚀 Why Use a SEA Agency for Your Advertising Campaigns?

Managing Google Ads in-house seems simple: the interface is accessible to anyone in a few minutes. The difficulty comes later, when you have to choose between Search, Shopping, Performance Max and Display without blowing the budget.

Definition: What Is SEA?SEA (Search Engine Advertising) refers to paid search: the purchase of ads displayed in search engine results through a bidding system. It complements SEO, which is based on organic optimisation.

⏱️ Saving Time and Optimising Your Advertising ROI

Une agence SEA structure le compte, segmente les audiences et surveille les enchères en continu. Ce daily monitoring has a direct impact on return on investment.

A poorly segmented account wastes budget on off-target searches, whereas a closely monitored account redirects spend towards what converts.

🧠 Mastering Google Ads Algorithms and Avoiding Budget Waste

Performance Max illustrates the technical complexity of SEA today. According to Google’s official documentation, this campaign type “gives access to all Google Ads inventory, including YouTube, Display, Search, Discover, Gmail and Maps, from a single campaign” (Google Ads Help).

The Smart Bidding follows the same logic. Google explains that these strategies “use Google’s artificial intelligence to optimise conversions or conversion value at each bid” (Google Ads Help), via objectives such as target CPA or target ROAS. Without correct configuration, the algorithm optimises on wrong signals and consumes the budget without results.

Doko’s view: We often see the same situation on accounts taken over after in-house management: campaigns launched too quickly, without conversion tracking. Une agence SEA A SEA agency’s first role is to restore a structured approach before adding budget.

🏆 Rankings: Top 12 Best SEA Agencies in France

Cette sélection de best SEA agencies is based on each agency’s public positioning, their claimed certifications and their stated specialities. Some run Google Ads as their core business, others integrate it into a broader growth offering — a point specified in each profile.

🥇 1. Doko: The Google Partners Agency That Combines SEO and SEA for Complete Acquisition, Without Depending on a Single Channel

Google Partners from Lyon, Doko manages SEO and SEA together, without depending on a single channel.

📊 2. Convertix: The Lyon Google Ads Agency Focused on Performance and Server-Side Tracking

The server-side tracking and a portfolio of more than 100 clients are the arguments put forward by Convertix, a Lyon-based performance agency.

🌱 3. Growth Room: The Paris-Based Growth Marketing and AI Agency That Integrates SEA into a Multi-Channel Acquisition Strategy

Growth Room claims more than 40 consultants for this Parisian agency founded in 2018, where Google Ads is integrated into a broader growth and AI offering.

🔎 4. AdsRank: The Google Ads and Microsoft Advertising Specialist Designed for SMEs

Google Ads and Microsoft Advertising specialist for SMEs, AdsRank claims to be certified as a Google Partner and Microsoft Partner, according to the agency.

🎨 5. Ben&Vic : L’agence Paid Media bordelaise, Google Partner Premier, pour des campagnes Ads multicanales

Ben&Vic claims the Google Partner Premier badge for its Paid Media campaigns, from Bordeaux with an office in Paris.

🛍️ 6. Mushido: The Paris E-commerce SEA Agency, Specialised in Google Ads Shopping and Performance Max

Shopping and Performance Max are the core focus of Mushido, an agency founded in 2022 and based in Saint-Cloud, which announces the Google Partner badge.

🔧 7. Deux.io: The Parisian Growth Hacking Agency That Manages SEA on Google and Bing

Parisian growth hacking agency, Deux.io manages SEA on Google and Bing alongside SEO.

🔄 8. Webconversion: The Agency That Combines SEA, GEO and Social Ads to Maximise ROI

Webconversion combines SEA, GEO and Social Ads on Google, Meta and LinkedIn around return on investment.

🤖 9. Uclic: The Growth Marketing and AI Agency That Integrates SEA into a Broader Multi-Channel Offering

According to its site, Google Ads is not a standalone offering at Uclic: it is a lever within the Inbound pillar, within a broader growth marketing and AI positioning.

🌐 10. Staenk: The Lyon Web Marketing Agency That Manages Paid Search on Google, Bing and Amazon

Google, Bing and Amazon Ads: Staenk covers all three paid search platforms from Lyon, alongside SEO.

🏗️ 11. Zesto: The Lyon Web Agency That Integrates SEA into an SEO and Site Creation Offering

Founded by Anthony Magnin, Zesto integrates SEA into an SEO and site creation offering in Lyon.

🏪 12. Open Five: The Lyon Google Ads Agency Designed for Tradespeople, Liberal Professions and SMEs

More than 120 campaigns created, according to Open Five, which targets tradespeople and liberal professions and SMEs from Lyon with Google Ads and Bing Ads.

Doko’s view: Our stance: we place Doko at the top because we combine SEO and SEA rather than depending on a single channel. This ranking remains editorial: other agencies may be better suited depending on your sector and budget.

🧐 How to Identify the Best SEA Agency for Your Business?

Stated positioning is not enough to choose: three checks allow the candidates to be separated before signing.

🏅 Official Certifications (Google Partner Premier)

The Google Partner badge is a Google programme aimed at agencies, and the Premier Partner level is the highest distinction. Since these claims are made by the agencies themselves, verify them directly with Google before making any commitment.

🔬 Analysing Client Case Studies and ROI

A client case study deserves verification before being taken as proof. A quantified result attributed to a named client can be verified, whereas an illustrative dashboard visual represents no real performance and should never form the basis of a decision.

💬 Pricing Transparency and Remuneration Model

A serious agency explains its billing model from the first conversation: percentage of media budget, fixed retainer or daily rate. The detail is covered in the next section.

To compare three agencies, follow this method:

1. Select three agencies whose positioning (specialist or growth) matches your need.
2. Ask for proof of each announced Google Partner badge.
3. Request two quantified client cases, attributed to a named client.
4. Have the remuneration model presented before any commitment.

Doko’s view: Our experience shows that an agency that refuses to clearly explain its pricing structure often hides a poorly justified margin. We present our model from the first meeting.

💰 What Rates Do Google Ads Agencies Charge?

A agence SEA SEA agency’s fee is made up of two distinct lines: the media budget paid to Google and management fees. The following benchmarks are indicative and do not constitute an official rate card.

📐 The Percentage of Media Budget Model

This model charges a percentage of the managed advertising budget, often decreasing as the budget increases. On the media budget side, allow for €1,500 to €5,000 per month depending on the sector, as an indicative figure.

🧾 The Fixed Monthly Retainer and Daily Rate

The fixed retainer charges a monthly amount independent of the media budget, suited to accounts of stable size. The daily rate charges consultant time, useful for an audit or a one-off launch.

As an attributed example, Uclic (a generalist growth agency, not a pure SEA specialist) announces retainers of €1,490 to €3,570 per month depending on the number of pillars covered, with a 3-month commitment.

Doko’s view: Our stance: a clear price is worth more than a quantified ROI promise before the account has even been opened. We always present our fees separately from the media budget invested in Google Ads.

⚡ Boost Your Paid Acquisition with Doko

Vous travaillez avec une équipe qui pilote SEO et SEA depuis Lyon. Doko accompagne PME, ETI et e-commerçants sur les campagnes Search, Shopping et Performance Max, avec le statut Google Partners revendiqué par l’agence.

📞 Request Your Free SEA Audit Today

The free audit reviews the structure of your Google Ads account, your bids and the Performance Max or Shopping opportunities left aside. You leave with concrete recommendations, usable even without signing with Doko.

Contactez l’équipe Doko, agence SEA — Lyon-based SEA agency — to schedule your free audit and find out where your advertising budget is going.

❓ FAQ: Everything You Need to Know About SEA Agencies

📖 What Is a SEA Agency?

A SEA agency manages a company’s paid search campaigns, primarily on Google Ads, through a bidding system rather than organic optimisation.

🧭 Why Use a SEA Agency Rather Than Managing Your Campaigns In-House?

An agency brings the time and technical mastery to manage Performance Max or Smart Bidding — two features guided by Google’s artificial intelligence. Without dedicated experience, these settings expose you to budget waste.

✅ How to Recognise a Good SEA Agency?

Three signals matter: a verified Google Partner badge, verifiable case studies rather than illustrative visuals, and a pricing structure explained before any signing.

💵 What Is the Minimum Budget to Launch a Google Ads Campaign with an Agency?

As an indicative figure, a media budget of €1,500 to €5,000 per month allows a viable campaign to be launched depending on the sector. This benchmark is not an official threshold: it varies with the competition on the targeted keywords.

🧮 What Are the Remuneration Models of SEA Agencies?

Agencies generally charge a percentage of the media budget, a fixed monthly retainer or a daily rate. Some add a variable element linked to performance.

📚 Sources

• Source : https://support.google.com/google-ads/answer/10724817
• Source : https://support.google.com/google-ads/answer/7065882
• Source : https://fr.wikipedia.org/wiki/Google_Ads
• Source : https://fr.wikipedia.org/wiki/Search_Engine_Advertising