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    Home / Publications / SEA

    Outsourcing your search campaigns: How to choose your Google Ads and SEM agency?

    Learn more about our expertise Search & Shopping 30/10/2026 8 min. reading mm Guillaume

    There comes a point in every advertiser’s life when managing Search campaigns in-house becomes a full-time job that was originally only supposed to take half a day a week. Between new features being released every month, bids that need daily monitoring, and the rest of your job – which, of course, can’t wait – something always ends up falling by the wayside. Delegating your Search management isn’t an admission of defeat. It’s recognising that a well-managed Google Ads account requires specialist expertise. The challenge is choosing who to entrust it to, without ending up with an agency that will simply rename your campaigns and send you a PDF every month.

    Key points to remember:

    1. Outsource your Search campaigns to save time
      👉 Managing Google Ads campaigns requires regular monitoring, ongoing optimisation and keeping abreast of changes to the platform. An agency allows you to benefit from dedicated expertise.
    2. Choose an agency that has a firm grasp of all the key elements
      👉 Account structure, bidding strategies, Quality Score, tracking and ad copy: effective management relies on a thorough understanding of all these elements.
    3. Prioritise transparency and a bespoke
      approach 👉 Access to your Google Ads account, a strategy tailored to your business, verifiable results and regular communication are all key criteria for assessing an agency’s quality.
    4. Don’t let automation run the show on its own
      👉 Google Ads’ AI solutions make campaign management easier, but their effectiveness depends on the quality of tracking, conversion data and the objectives set.
    5. Measure performance against business
      objectives 👉 CPC and clicks alone are not enough to evaluate a campaign. You should also analyse CPA, ROAS, customer acquisition cost and conversion value to measure the return on investment.

    In summary, choosing a Search agency isn’t just about outsourcing the management of your campaigns. It’s about relying on expertise that can optimise performance, manage investments transparently and align them with business objectives, whilst retaining control of your Google Ads account.

    Why outsource the management of your search campaigns to an agency?

    First reason: Search takes time

    Analysing search terms, allocating budgets, testing adverts, monitoring CPCs, adjusting bids, tracking conversions… You don’t launch a campaign only to then leave it to languish in the depths of Google Ads. 

    Second reason: the platform is becoming more complex

    Smart Bidding, Performance Max, Demand Gen, AI Max, Broad Match… Google Ads is clearly entering the age of AI. And the role of the SEA expert is evolving alongside it. Working with an agency therefore means benefiting from a level of expertise that is difficult to maintain in-house. But it also means gaining a broader perspective on your campaigns, testing ideas more quickly and, above all, avoiding leaving it entirely up to Google to decide how best to spend your budget.

    💡 Good to know: automation doesn’t mean letting Google run wild. The more your bids and targeting are automated, the more important the quality of your tracking, conversion goals and the data sent to the platform becomes. AI is in the driving seat, certainly, but you need to point it in the right direction. 🎯

    What a search agency needs to be able to manage

    Leverage / competenceWhy it’s importantA sign that something is missing
    Account structureA clear architecture makes it easier to manage and analyse performanceCatch-all campaigns that are difficult to tell apart from one another
    Bidding strategiesIf Smart Bidding is set up incorrectly, it can quickly go off the railsA ROAS or CPA that fluctuates without any clear explanation
    Quality ScoreHas a direct impact on the cost per clickNo one can explain it to you during a consultation
    Tracking and conversionsWithout reliable data, any optimisation is bound to go wrongDuplicate or missing conversions that have never been noticed
    Extensions and assetsImprove click-through rates without any extra effortAdvertisements that have remained unchanged for months, never revised

    💡 Good to know — A high Quality Score can significantly reduce your cost per click without affecting your budget. This is often the most under-utilised strategy, because it requires real effort to ensure the relevance of your adverts and landing pages, not just your bids.

    What sets a good search agency apart

    Six things to check before signing. No need for a three-hour audit – you can get a feel for it quickly during the meeting.

    Access to the account, without negotiation 🔑

    Have you never been able to access your own Google Ads account? That’s a major red flag. An agency that’s above board will let you look, click and ask questions. One that keeps you at arm’s length with a monthly PDF full of charts might have something to hide. Or nothing to show.

    The courage to break bad news 😬

    A campaign that flops – it happens to everyone, even the best. What matters is what happens next: either the agency explains it straight up and proposes a plan, or it muddles the issue with jargon to buy time. 

    A bespoke strategy, not a cut-and-paste job 🎯

    An e-commerce site, a local franchise and a B2B website are not in the same league. If the sales pitch sounds the same regardless of your sector, it’s probably just a recycled template, not a genuine analysis of your specific situation.

    A monitoring service that never sleeps 🔭

    Google Ads changes its rules several times a year, sometimes within a matter of weeks. The migration to AI Max is the most recent example of this, with a direct impact on campaigns using exact match or broad match keywords. We go into all this in detail in Migration to AI Max: what advertisers need to review before September 2026.

    Verifiable figures, not soundbites 📊

    “We’ve increased the ROAS fivefold” sounds good in a meeting. What really matters is being able to prove it, with a proper before-and-after comparison and data that stands up to scrutiny. A purely theoretical argument is never a substitute for proof.

    The instinct to say no, even if it upsets people 🙅

    Do you want to increase the budget for a campaign that isn’t converting? A good agency will put the brakes on and explain why. One that always says ‘yes’ just to please you is mainly working to boost its own turnover.

    Search agencies: questions to ask

    • Will I retain full access to my Google Ads account?
    • How do you deal with underperforming campaigns?
    • Could you give me a practical example from a sector similar to mine?
    • How do you keep up to date with changes to the platform, such as the AI Max migration?
    • Who will be my main point of contact, and how often will we be in touch?

    💡 Advice from our experts:

    1. Set your objectives before choosing an agency
      👉 Clarify your priorities: generating qualified leads, boosting sales or improving profitability. Define performance indicators tailored to your business so you can assess results and guide optimisation efforts.
    2. Check that your tracking
      is reliable 👉 Before handing over your campaigns, ensure that conversions are set up correctly and that the data reported to Google Ads is reliable. Faulty tracking can skew performance analysis and compromise the effectiveness of automated bidding strategies.
    3. Retain control of your account and data
      👉 Retain ownership of your Google Ads account and full access to your campaigns. You must be able to view the settings, understand the decisions made and easily retrieve your data history should you change service providers.
    4. Assess results beyond advertising
      metrics 👉 Don’t limit yourself to the number of clicks, CPC or conversion rate. Analyse lead quality, customer acquisition cost, revenue generated and profitability to determine the actual contribution of Search to your business.
    5. Prioritise ongoing management and regular
      communication 👉 Schedule review meetings to understand performance trends, approve next steps and adjust budgets. Effective collaboration relies on well-reasoned recommendations and a strategy that evolves in line with your results.

    Key takeaway: successful outsourcing relies on a transparent partnership, reliable data and shared objectives. The agency provides its expertise and drives optimisations, whilst the advertiser maintains a clear overview of its investments and how they contribute to the company’s results.

    Ad’s up: outsourcing your search without losing control

    Entrusting your campaigns to an agency doesn’t mean handing over the reins and waiting for the monthly report. At Ad’s up, our approach goes further. The idea is to bring together media expertise, data and business objectives to determine where to invest, what to prioritise and what needs to be challenged.

    Account audits, campaign structure, bidding strategies, tracking, testing, automation… the account is constantly evolving. There’s no question of simply launching campaigns and leaving them to run their own course. 

    Above all, we don’t stop at Google Ads metrics. Because, ultimately, the real question isn’t ‘how much have we spent?’, but ‘what has every euro invested actually generated for the business?’

    At Ad’s up, we combine media expertise, data analysis and business objectives to manage search campaigns with a view to achieving sustainable performance. The challenge is to look beyond advertising metrics to measure the actual contribution of investment to the company’s results.

    Would you like to take your campaign optimisation to the next level? Find out more about the support we offer as a Google Ads agency and the solutions we provide to improve your performance.

    Why outsource the management of your Search campaigns?

    To access specialist expertise, save time and optimise your Google Ads spend more effectively.

    How much does a Google Ads agency cost?

    The fee generally depends on the media budget, the number of campaigns, the markets covered and the level of support required.

    When should you outsource your SEA?

    When campaigns become too complex or time-consuming, or when performance stagnates despite a significant budget.

    How do you assess a Google Ads agency’s performance?

    Look beyond CPC: CPA, ROAS, CAC, conversion value and profitability are generally much more telling.

    Should you give the agency access to your Google Ads account?

    Yes. And ideally, the advertiser should retain ownership of their account and data, even when management is fully outsourced.

    Guillaume
    Guillaume
    Directeur de la Production & Associé
    Expert SEA & Innovation IA