Which Companies Outsource Their Marketing (And Why)

Most companies that outsource marketing fall into three buckets: small service businesses under $5M in revenue (HVAC, plumbing, dental, law, med spa, home services) that outsource nearly everything because a single in-house marketer costs $68,000–$95,000/year plus benefits; mid-market companies at $10M–$250M that keep strategy in-house and outsource execution channels like paid search, SEO, and content; and enterprises that outsource specialized functions — programmatic media buying, creative production, localization — while running brand internally. The CMO Survey (Duke Fuqua, 2024) puts the average share of marketing activities outsourced at roughly 28.5% of the marketing budget. Nearly every company outsources *something*. The real question is which functions, and at what revenue point the math flips.

The Actual Breakdown by Company Size

The pattern is not "big companies insource, small companies outsource." It's a U-curve, and the middle is where the interesting decisions happen.

Which Named Companies Actually Do This

Concrete examples beat abstractions, so here are documented ones:

The ANA's in-housing research found 82% of member companies have some form of in-house agency — up from 58% in 2013 — but the same research shows in-house teams handle a *narrower* slice of work than the headline implies. In-housing and outsourcing grew simultaneously. What shrank was the mid-tier generalist agency of record.

The companies that outsource well are not the ones with the smallest teams. They're the ones that know exactly which function they're buying and can name the number it has to hit.

The Functions Most Commonly Outsourced

Ranked roughly by how often they leave the building:

Least commonly outsourced: pricing strategy, product marketing, and customer data governance. Those stay in-house at almost every size.

The Math That Decides It

Run the comparison honestly. A competent in-house digital marketer in a mid-cost US metro costs:

Total year-one cost: roughly $100,000–$150,000 for *one person* covering *one skill set*. An agency retainer at $4,000/month is $48,000/year and buys fractional access to a strategist, a media buyer, a writer, and a developer. That's why the crossover point sits around $10M–$15M in revenue for most service businesses — below it, one hire can't cover the surface area; above it, the agency's blended rate stops being a bargain.

If you want to run your own numbers against actual channel performance, the ROI calculator is more useful than any benchmark table, and pricing shows what real retainer tiers look like.

When Outsourcing Is the Wrong Answer

This is the part most agency pages skip. Outsourcing marketing fails predictably, and here is where it fails:

Don't outsource if you're under $500K in revenue and can't fund 9 months. SEO and content compound; they don't switch on. A $2,500/month retainer for four months and then cancellation is $10,000 spent to learn nothing. If your runway can't absorb 9–12 months of fees before judging results, do not start. Buy Local Services Ads and ask for referrals instead.

Don't outsource if your close rate is broken. An agency that doubles your lead volume when you close 8% of leads and take 26 hours to call back has just doubled your wasted spend. Lead response research (Harvard Business Review, InsideSales) found companies contacting leads within 5 minutes were roughly 21x more likely to qualify them than those waiting 30 minutes. Fix intake first. We have turned down clients for exactly this reason and it was the right call for both sides.

Don't outsource if nobody internally owns the relationship. Agency engagements die from client-side neglect more than agency incompetence. If no one on your side can spend 2–4 hours/month on review calls, asset approval, and feedback, the work will drift and you'll blame the vendor.

Don't outsource strategy you haven't formed. If you can't say who your best customer is, what a customer is worth over 24 months, and which service line has the fattest margin, an agency will invent answers. Those answers will be plausible and wrong.

Other real failure modes:

Who should hire in-house instead: companies above ~$15M revenue with one dominant channel; companies in regulated fields (some healthcare, financial advisory) where compliance review makes external cycles painfully slow; and companies whose marketing is genuinely a product function rather than a demand function.

The Hybrid Model Most Companies Land On

The durable structure for a $5M–$50M service business is one internal owner plus outsourced execution:

Ratio in practice: roughly $1 of internal salary for every $2–$3 of agency fees, plus ad spend on top. A $10M home services company might run $95,000 internal, $60,000 agency, $240,000 media — about 4% of revenue, which sits in the normal band for service businesses (Gartner's CMO Spend Survey has put average marketing budgets at 7.7–9.1% of revenue across industries, with service SMBs typically lower at 3–6%).

If you want to see how that structure performs in practice, case studies has the account-level numbers, and services lists exactly which functions are on the table.

The companies that outsource marketing successfully are boring about it: they name one owner, define one primary metric, sign a term long enough for compounding channels to compound, and keep their own data. The ones that fail usually did the opposite, then concluded outsourcing doesn't work.