What services does content marketing include?
Content marketing spans strategy, editorial calendar management, long-form writing (blog, whitepaper, ebook), short-form (social, email, ad copy), design (infographics, illustration), video (scripted, brand doc, short-form social), distribution (email, syndication, paid amplification), and measurement (SEO ranking, engagement, attribution). Agencies pick what to specialize in. Nobody does all of it well.
Specialists against everybody else
Two numbers define this category. 180 US listings in The Wall are filed under Content Marketing as their primary discipline. 360 name content marketing among their services. Roughly 2.0 times as many firms sell it as build their business on it.
That gap is what "included" means in practice. For most US agencies content is a line inside a broader engagement rather than the engagement, which is why the same phrase can cover a monthly blog quota at one firm and an editorial program with its own strategist at another.
Inside the 180 specialists, 138 publish an hourly rate and 117 of the 148 that publish a minimum open at $5,000 or less. The specialists are not more expensive than the generalists. They are simply the ones who will still be doing this work if your campaign budget gets cut.
How to use this
Make the deliverable countable before you sign. Pieces per month, who writes them, who edits them, and who is accountable for whether anybody reads them. A service list entry tells you the firm will take the work, not how it is staffed.
How this was computed. Every figure on this page is counted from The Wall's own directory of approved, US-headquartered, machine-verified-live listings: 3,460 of them in the snapshot captured 2026-09-14. Rates, minimum project sizes, team sizes, founding years and ratings are provider-declared figures published on public profiles. 1,738 of those listings publish a service list, and that field holds at most 4 services per firm, so service counts are counts of what firms name first rather than everything they sell. Percentages of disclosed values exclude listings that publish no figure. Nothing here is modeled or estimated. Sourcing standards: editorial policy.
Why this matters
Google puts this question in People Also Ask for the "content marketing agency" query, which means buyers are asking it while they shop. The Wall answers it from the directory position: we index 3,460 verified US growth-services vendors across 10 pillars, so the figures above come from those records rather than from a survey.
If you are evaluating vendors in this category, the Content Marketing pillar page carries the full US firm list with rate, team size and headquarters filters.