PPC Agency

A PPC agency structures work around account managers or strategists, each carrying a roster of client accounts, usually supported by platform specialists - a Search specialist, a Meta specialist, sometimes a creative resource - who work across that whole roster rather than being dedicated full-time to one client. That layered structure is the main thing that separates it from In-House Marketing, which is one company's dedicated headcount, and from a Freelance PPC Specialist, where one person handles everything with no team layer underneath them. Fees are typically a flat retainer, a percentage of ad spend, or a hybrid of the two, defined in a contract that also sets scope: which platforms are covered, how many campaigns, reporting cadence, and whether creative or landing pages are included.

Account access is a real point of variation between agencies. Better practice is the agency requesting manager-level access to accounts the client already owns under their own MCC or Business Manager; a weaker practice, still common, is running everything through the agency's own account instead, which affects how easily the client can take data and history with them if the relationship ends. Agencies also typically set minimum monthly fees or spend thresholds, because senior staff time doesn't scale down cleanly to very small accounts - a strategist can't meaningfully split attention across dozens of tiny retainers the way the math might suggest on paper. Onboarding scope is a third variable: what gets audited or rebuilt at contract start - conversion tracking, account structure, historical campaigns - versus what's simply left as-is.

An agency fits when spend is large enough to fund senior strategic attention plus execution without the fixed cost of a full in-house hire, and when the advertiser wants platform breadth - Google, Meta, LinkedIn, under one relationship - plus continuity if any one staffer leaves, since the agency itself doesn't disappear when an individual does. It fits poorly at very small or lifestyle-business spend levels, where an agency's minimum fee can exceed the value of professional management relative to a Freelance PPC Specialist or AI Ad Management Software, or when the business needs someone embedded day-to-day in company strategy in a way that leans back toward In-House Marketing.

The recurring mistake is not verifying actual staffing before signing - asking who specifically touches the account weekly and how many other accounts that person carries, since the staff who run the sales conversation are often different people from the staff who execute. A second is signing without clarity on account ownership: whether the client retains admin access and owns the account and its data if they leave, or whether it's agency-owned and effectively starts over elsewhere. A third is evaluating an agency purely on case studies without asking for a comparable current client reference. A fourth is assuming a percentage-of-spend fee automatically aligns incentives - it can also incentivize spend growth that isn't the same thing as profitable growth, so it's worth asking directly how the agency approaches budget-increase recommendations.

Ongoing, the most predictive single question is the staff-to-account ratio: roughly how many accounts does your specific day-to-day contact carry, since that number says more about attention quality than any case study. Reporting should tie back to the client's own conversion data rather than platform-reported metrics alone, and a fixed reporting and strategy-call cadence is worth confirming explicitly rather than assumed.