What questions should I ask a growth marketing agency before signing a contract?

Before signing with a growth marketing agency, ask a clear set of questions. This covers relevant case studies, who runs the account day-to-day, the first 90-day plan, KPIs and reporting cadence, full pricing and exit terms, account and data ownership, and how they approach AI search. Strong answers show how a team thinks under pressure, not in a pitch deck.

The questions you ask in the evaluation predict the partnership you get later. Vague answers, hero metrics, and rehearsed pitches are signals, not noise. A senior practitioner will welcome hard questions because specifics protect both sides.

Why Vetting a Growth Marketing Agency Matters

Picking the wrong agency does more than waste budget. It costs you a quarter of selling time, slows the roadmap, and burns internal trust in marketing. The pressure to make these decisions well is rising. According to the Gartner 2025 CMO Spend Survey, 39% of CMOs plan to cut agency budgets this year, and most are starting by eliminating unproductive agency relationships.

A growth marketing agency in 2026 covers paid media, organic search, lifecycle, measurement, and creative. If you run apps, web, or both, you also need a partner who understands iOS attribution shifts, AI Overviews, and answer engines. Our view on this sits inside the way we approach performance marketing for global brands.

What Should You Ask About Experience and Strategy?

Past work is the cleanest signal you have. Ask for case studies in your category that include the brief, the test, the numbers, and the timeframe. Generic “200% lift” claims should trigger follow-ups about base rates, control groups, and incrementality.

Ideas are cheap. Process is what makes them ship. A clear 30, 60, and 90 day plan shortens ramp time and gives both sides a shared scoreboard. The strategist who builds your plan should also be in the room when it ships, because handoffs are where most underperforming engagements start to wobble.

Specificity is the test. When SEGA partnered with us on Football Manager 2024, we segmented audiences into core, mid-core, and new players, then ran a six-phase plan across paid social, programmatic, search, and audio. The outcome: a 102% increase in players over FM23, 21% lower cost per download, and a 6% year-on-year sales lift. The work later won at The Drum EMEA Awards 2024. That is the level of detail a real case study reads like. Ask for the same.

Ask:

• Show three case studies in our category with specific numbers and timeframes.
• Who on your team will actually run the account day to day?
• What does the first 30, 60, and 90 day plan look like?
• How do you connect channel tactics to revenue, CAC payback, and LTV?
• How quickly do you kill losing creative or audiences?

How Should You Evaluate Measurement and Reporting?

CFO pressure on marketing has gone up. The CMO Survey 2025 shows marketing budgets at 9.4% of company revenue, with leaders facing tighter scrutiny on every dollar. That makes measurement the most valuable part of your contract.

Ask which KPIs the agency tracks, why, and how often you see them. Sample reports tell you more than any pitch deck. Good reporting drives a decision in the next two weeks, not a chart in the next quarter. Our data, analytics, and tech team builds measurements that combine MMM (Marketing Mix Modeling), geo-lift, and attribution into a single view through OneView.

Ask:

• Which KPIs do you prioritise, and how do they map to revenue?
• Show a sample weekly and monthly report.
• How do you handle iOS attribution, MMM, and incrementality?
• What action did your last three client reports trigger?
• Can you discuss beyond ROAS and include CAC payback and LTV?

Pricing, Contract Terms, Team, and Ownership

Financial clarity prevents the biggest disputes. Cover retainers, performance fees, hybrid models, setup fees, media fees, and tech fees in writing before the SOW lands. The exit clause matters as much as the start.

The senior names in the pitch often disappear after kickoff. Ask who runs the account week to week, who escalates, and how often senior leads attend reviews. Response times matter when a campaign goes sideways on a Friday afternoon.

Control should sit with you. Ad accounts, GA4, MMP, creative files, audience lists, and dashboards should be in your name. The agency runs them, you own them. Confirm this on day one, not on the way out.

Ask:

• How do you price work, and why does that model fit our scope?
• What is the notice period and any minimum contract length?
• Who is on the day to day team, by name and role?
• What is your response time for urgent issues?
• Who owns ad accounts, GA4, MMP, and creative files at exit?

How Should an Agency Handle GEO and AI Search?

Search is shifting from blue links to AI answers. The 2025 Marketing Agency Benchmarks Report by AgencyAnalytics found that 73% of agency leaders agree that generative AI has changed how SEO works. If your agency cannot explain Generative Engine Optimisation in plain English, they cannot defend your category share in AI Overviews and LLMs.

Ask how they measure citation rate and brand mentions across AI surfaces, not only rankings. Ask how they structure content for senior readers first and AI systems second. We share our point of view on what really drives LLM search visibility.

Ask:

• How do you balance content for AI systems and senior human readers?
• How do you approach GEO versus classic SEO?
• How do you measure citation rate, mention rate, and AI visibility?
• What is your point of view on AI Overviews and answer engines?

Red Flags and Warning Signs: What to Watch Out For

Bad fits show up early. Watch for guaranteed rankings, vague answers to direct questions, and pressure to sign before legal review. A good agency will say no to projects that do not fit, and will tell you which prospects they walked away from this year.

Score each section out of five. Anything below four needs a second conversation or a written follow-up. A simple scorecard makes the choice less emotional and easier to defend internally with finance, product, and legal.

Watch for:

• Guaranteed rankings or guaranteed install numbers.
• “We can do everything.” No agency does.
• Reporting that hides cost and only shows wins.
• No reference clients are willing to take a 20-minute call.

Final Take: The Questions Predict the Partnership

A vetting process is only as good as the questions you bring to it. The areas above, from case studies to exit terms, give you a scorecard that finance, product, and legal can defend. Strong agencies will lean into hard questions. Weak ones will dodge them.

We have run performance media for global brands since 2006, including Gopuff, Groupon, Grab, Headspace, Canva India, SEGA, Mobile Premier League, and more. Across audits, the pattern is clear. The partnerships that last are built on specifics, not slogans. Our team measures real impact through OneView, our proprietary platform that validates incrementality instead of leaning on attributed conversions.

If you are scoping your next growth marketing partner, talk to our team. One honest conversation tells you more than a polished pitch deck.

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