Media Buying AgencyDigital media buying forthe audience, not the impression count.

An impression is easy to buy. Attention from the right person is not. We start with who you need to reach, work back to where they spend time, and buy space there at a price that makes sense.

FEE MODEL
15% of media spend, $2,000 minimum management fee.
CHANNELS
Native, display, paid social, sponsored content, retargeting, CTV on request.
REPORTING
Reach, cost and response, with a note on next month’s changes.
What we buy

Media buying services across paid channels

Native advertising

Ads in the editorial flow of relevant publishers, clearly marked as sponsored.

Sponsored content

Branded articles and newsletter features with publishers whose readers match your buyers.

Display and programmatic

Audience-led buys across premium inventory, with brand-safety lists set before launch.

Paid social

LinkedIn, Meta, TikTok and YouTube campaigns, matched to where your audience pays attention.

Retargeting

Follow-up media for people who already met your brand through PR or placements.

Connected TV (on request)

Streaming inventory for brands with the budget and creative to support it.

How we plan a buy

Five checks before a dollar moves

  1. Audience firstWho must see this, and what do they already read, watch and trust?
  2. Placement reviewEvery site and channel is checked for relevance and context.
  3. Creative fitAds written for the environment they run in, not resized from one master file.
  4. Weekly checksWe cut what isn’t reaching the right people and move budget to what is.
  5. Plain reportingReach, cost and response, plus what we’d change next month.
Why it works better with PR

Paid media reaches people quickly. Earned coverage gives them a reason to believe you.

When both run together, people who see your ad have often just read about you somewhere credible, and that changes how they respond.

That’s why our media buyers and PR team plan from the same brief, with one story running through every channel.

FAQ

Digital Media Buying: common questions

How much does a media buying agency charge?

Most US agencies charge 10 to 20% of monthly media spend. Sentinel charges 15% with a $2,000 minimum monthly fee.

What's the difference between media buying and media planning?

Planning decides where and when your brand should appear. Buying secures that space and manages it. We do both.

Is native advertising the same as sponsored content?

They overlap. Native ads match the look of the page they sit on; sponsored content is a full article paid for by a brand. Both must be labelled as paid.

Do you work with our existing creative?

Yes, and we’ll tell you where it needs adapting for each placement.

Related services

Often paired with this service

Digital PR

Coverage, data stories and expert commentary that earn recognition.

Explore digital pr

Ready to buy attention that counts?

Share your audience and budget. We’ll show you where that money would reach the right people.

Talk to Our Media Team
Talk to Our Media Team