How To Hire Enterprise PPC Agencies

How do you evaluate an enterprise PPC agency's track record before signing?

Ask for case studies and references from accounts that match your spend level, industry, and complexity, then verify them directly.

A track record only tells you something useful if it resembles your situation, so a great result for a $5,000-per-month local account says little about whether the agency can run a $500,000-per-month multinational program.

Here is what to dig into:

• Spend managed. Ask about the total monthly and annual ad spend the agency currently manages. This shows whether they operate at your scale.
• Account longevity. How long do clients stay? Short tenures hint at churn and broken promises.
• Reference calls. Talk to current clients, not just the polished case study, and ask what went wrong and how the agency handled it.
• Named results. Push past percentages. A 200% increase from a tiny base is meaningless without the starting numbers.

Buyers sometimes choose an agency because its sales presentation looks impressive, only to discover the agency has never managed an account of their size. The learning curve gets paid out of your budget.

Verifying the track record up front is the cheapest insurance you can buy in this process, and a reputable enterprise PPC company will hand over references without hesitation.

What budget minimums should you set before approaching enterprise PPC agencies?

Set a minimum that covers meaningful ad spend plus the management fee; in practice, most providers at this scale expect at least $10,000 to $20,000 per month in combined spend before the engagement makes sense.

The reason is simple math: at enterprise scale, the data volume needed to optimize campaigns requires real spend, and a thin budget starves the algorithms of the conversions they need to learn.

Think of the budget in three layers:

1. Ad spend: The money that buys clicks and impressions, and the largest line item.
2. Management fee: What the agency charges to run it, often 10% to 20% of spend or a flat retainer.
3. Tooling and creative: Bid management software, landing page builds, and ad creative, which sometimes sit outside the core fee.

A budget set too low forces the agency to spread spend so thin that no single campaign gathers enough data to optimize. You end up paying a management fee for results that never had a chance to materialize. Setting a realistic floor before you start conversations also filters out agencies that would have wasted your time.

What should an enterprise PPC agency's onboarding process look like?

A strong onboarding process spends the first 30 to 60 days on discovery, technical setup, and a documented strategy before any aggressive spending begins.

Rushing money into a newly opened account is one of the most common ways to waste a budget, so a methodical start is a sign of a serious partner.

A solid onboarding sequence usually covers:

• The agency takes administrative access to your ad accounts, analytics platforms, CRM, and any reporting tools needed to understand the full funnel.
• They audit existing campaigns, tracking, keyword data, audience segments, landing pages, and historical performance.
• They verify or rebuild conversion tracking so every dollar can be tied to a real result.
• They review account structure and identify wasted spend, overlapping campaigns, weak targeting, and gaps in coverage.
• They create a written strategy covering platforms, budget allocation, target metrics, and the testing roadmap.
• They define reporting expectations, including which KPIs matter, how often updates happen, and who receives them.
• They set up approval workflows, so campaigns do not stall while waiting for internal sign-off.

Agencies that begin spending heavily in week one are usually guessing. Without clean conversion tracking in place first, you cannot tell which campaigns work, and you will optimize toward bad data for months. The onboarding period is when an enterprise pay-per-click agency earns trust, and a rushed one is a warning sign.

How do you assess an agency's expertise across platforms before hiring?

Assess their expertise by asking specific questions about the platforms you actually need, not broad questions about PPC in general.

An agency may be strong in Google Ads but weak in LinkedIn Ads, Amazon Ads, Microsoft Ads, or paid social. For enterprise PPC, that gap matters because campaigns often run across several platforms at once.

Ask about the following:

• Platform certifications, such as Google Partner or Microsoft Advertising Partner status, as a baseline check.
• How they would structure campaigns on each platform you plan to use.
• Which team members would work on each platform and whether specialists are involved.
• How they handle budget shifts between channels when one platform performs better than another.
• How they track performance across platforms without double-counting conversions.
• How they adapt creative, targeting, and bidding strategy for each channel.

If you skip this step, you can hire an agency that performs well on Google Ads but cannot manage LinkedIn, Amazon, or paid social at the same level. The weaker channels underperform quietly while the agency keeps leaning on its strongest platform.

By the time the problem appears in the numbers, months of budget may already be wasted. The best enterprise PPC management services are clear about where they are strongest and where they may need added support.

How do you measure whether your enterprise PPC agency is actually performing?

Measure performance against the business outcomes agreed at the start, mainly ROAS, cost per acquisition, revenue, lead quality, and pipeline contribution. Results only matter when they are compared against a clear baseline and target, so measurement should be set up before the engagement begins, not improvised months later.

Track the following:

• ROAS shows whether ad spend is generating enough revenue to justify the investment.
• Cost per acquisition shows how much it costs to win a customer, not just a lead or click.
• Revenue and pipeline contribution show whether PPC is supporting actual business growth.
• Lead quality shows whether campaigns are attracting buyers who can become customers.
• Conversion rate shows whether traffic is turning into demos, calls, purchases, or qualified inquiries.
• Cost per lead helps identify whether spend is becoming more or less efficient over time.
• Reporting accuracy shows whether tracking, CRM data, and attribution are reliable enough to trust.

Use the table below to separate healthy agency performance from warning signs:

The table above shows the difference between an agency that actively manages your account and one that simply maintains it. A strong partner connects every report back to revenue, CPA, and pipeline, and flags problems before you have to ask.

Without agreed metrics and regular reviews, an agency can keep a stable account running for months while performance slowly falls behind.

Reviewing results against clear targets keeps the agency accountable and provides evidence when it is time to renew, renegotiate, or switch partners. Among enterprise PPC companies, a willingness to be measured this way is a strong sign of reliability.

Sources

DesignRush sustains a directory of over 30,000 agencies categorized by service category, location, expertise, and reviews. We build our database in two ways:

• Our dedicated team of agency experts actively searches the web for top-performing companies. We then pull information from their websites, online presence, and client testimonials to verify their status and qualifications prior to listing.
• The agencies listed get notified of their profiles on the website and they can choose to claim it or not, which suggests their availability for more collaborations.

Agencies can also reach out to DesignRush and must go through the verification process prior to being listed.