Media buying firms, compared on what they disclose

Agencies with a verified published price

How to hire a media buying firm

1. Define the objective and the geography first. A buyer optimising for reach in three metros needs a different plan and a different firm from one chasing measurable enquiries nationally. Write the objective, the geography and the seasonality down before any conversation, so competing proposals are answering the same brief rather than each inventing their own.
2. Ask how they are paid, in one sentence. There are four common answers: a share of media spend, a flat retainer, a fee per placement, or a marked up rate where they buy inventory and resell it to you. Only the last one hides its size, so ask whether media is passed through at cost and get the answer written into the agreement.
3. Check their leverage where you actually advertise. Buying power is channel specific and market specific. A firm with real weight in local broadcast may have none in connected television or programmatic display. Ask which vendors they buy from monthly, in your channels, and ask for two references with a comparable budget in a comparable market.
4. Agree reconciliation before the first flight. Schedules change: spots get pre empted, impressions underdeliver, placements move. Settle in advance how discrepancies are reported, how make goods are negotiated, and when you receive proof of performance, so a shortfall becomes a credit rather than an argument at the end of the quarter.

What moves the price

Three things. Total budget is the largest driver, because a share of spend model falls in rate as volume rises and most firms publish or at least disclose a minimum below which they will not take an account. Channel mix is next: broadcast and out of home involve negotiation, contracts and reconciliation work that digital placement partly automates, while programmatic brings platform and data costs that sit on top of the media itself. Complexity is third, meaning the number of markets, the number of flights and how often creative changes, since each variation multiplies the trafficking and quality control work behind a plan.

The quieter driver is what else is bundled. Some firms include strategy, research subscriptions and creative trafficking in the fee, while others charge each separately, and a low headline rate with four line items underneath can cost more than a higher all in number. Ask for a single figure representing total cost of working with them at your budget level, including any platform, verification and reporting tools, and compare firms on that figure rather than on the percentage or the retainer alone.

Transparency and what stays with you

The question that matters most is whether media is passed through at cost with a disclosed fee on top, or resold at a marked up rate. Both are legal and both exist across the industry, but only the first lets you audit whether you got a good buy, and in the second the firm's margin grows with your effective media cost. Ask which model applies, ask to see vendor invoices for a sample flight, and ask whether any rebates or volume incentives received from vendors are returned to you or retained. Firms that answer these plainly tend to be the ones whose reporting survives scrutiny later.

Ownership matters too. Keep your own ad accounts, pixels and audience data wherever the platform allows it, and grant access rather than transferring control, so a change of firm does not reset your measurement history. Advertising claims remain your responsibility whoever places them, and the FTC's advertising guidance for business is clear that claims must be truthful and substantiated. Make sure someone on your side signs off on creative before it is trafficked, because a buying firm's approval process is about clearance and specification, not about whether your claims are supportable.

Questions people actually ask

What is the difference between a media buying firm and a full service agency?

A buying firm plans, negotiates and places media, and usually reconciles it. A full service agency adds creative, strategy and often production. Buying specialists can be cheaper and more skilled at negotiation, but you then need someone else producing the advertising and someone owning the overall plan.

Is a share of spend or a flat retainer better for the buyer?

A retainer removes the incentive to grow spend for its own sake and suits stable budgets. A share of spend suits campaigns that scale up and down and keeps cost proportional to activity. What matters more than the model is whether media is passed through at cost, since that decides whether you can audit the buy at all.

How do we verify the schedule actually ran?

Ask for proof of performance: affidavits or post logs for broadcast, photographs and installation reports for out of home, and platform level delivery reports with placement detail for digital. Reconcile these against the invoice for every flight, and confirm in the contract how underdelivery is credited or made good.

What minimum budget do buying firms usually require?

Most disclose a floor, because negotiation, trafficking and reconciliation cost roughly the same whether the campaign is small or large. If your budget sits below a firm's minimum, buying self serve in one or two channels, or hiring a freelance buyer, will usually produce a better outcome than being a firm's smallest account.

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