Which marketing company fits a startup at each stage?
A startup should hire the kind of marketing company that matches its stage, and before product-market fit that is usually a narrow, project-sized engagement rather than a full-service retainer. The four types most founders consider do different jobs:
| Type | What you buy | Pre-seed | Seed | Series A | Deciding fact |
|---|---|---|---|---|---|
| Growth or performance agency | Paid search and social campaigns, landing pages, conversion testing | Rarely | A capped test | Often | You know which buyer converts and can afford to pay for clicks while you learn |
| Content or SEO agency | Articles, search pages, link building | No | Sometimes | Often | Your buyers search for the problem, and you can wait months for results |
| PR firm | Press coverage, launch and funding announcements | No | One project | Sometimes | You have news a reporter would care about and a story that is already clear |
| Fractional CMO | A senior marketer for a few days a month: plan, hires, agency management | Rarely | Sometimes | Often | Someone will carry out the plan, or the fractional will do the work too |
The yes and no cells are our read for B2B startups, not a survey result. The pattern behind them: the earlier you are, the more an agency's work depends on answers only you have, such as who buys and why. Our sibling guide on how to choose a marketing agency covers vetting a shortlist; this post covers what is different when the client is a startup.
How much does a marketing agency for startups cost?
We didn't find a public pricing survey limited to startup clients (searched 5 Nov 2026), so these are the nearest dated surveys, with their samples:
| What it measures | Figure | Source and sample |
|---|---|---|
| Most common SEO retainer | $501 to $1,000 a month, charged by 20.4% of respondents | Ahrefs poll of 439 SEO providers, page updated 15 Aug 2024 |
| Average SEO retainer, agency vs freelancer | $3,209 vs $1,348 a month | Same Ahrefs poll; averages assume each provider charges the top of its price band |
| SEO providers charging a monthly retainer | 78.2% | Same Ahrefs poll |
| Share of digital marketing done by outside agencies, partners and services | Mean 33.59%, median 25% (198 answers); companies under 50 staff, mean 31.00% (30 answers) | The CMO Survey, fielded 7 to 29 January 2026 |
| Full-time marketing manager pay | Median $166,790 a year | US Bureau of Labor Statistics, May 2025 wages |
Sources: Ahrefs' SEO pricing poll, The CMO Survey's topline report (page 9) and breakout report (page 30), and the BLS occupational outlook for marketing managers (all checked 5 Nov 2026). The Ahrefs page doesn't say when the poll ran (checked 5 Nov 2026), and The CMO Survey's respondents are mostly larger US companies, so treat both as orientation. For PR firms, the pricing pages we found were agency blogs with no stated sample, so we left their numbers out. Our post on whether AI can replace a marketing agency adds SE Ranking's 2024 agency data.
Use the BLS figure to sanity-check a fractional CMO quote. $166,790 ÷ 12 = about $13,899 a month in median wages before benefits. One day a week is a fifth of that, about $2,780. If a sample quote for one day a week is $6,000, you are paying $6,000 ÷ $2,780 = about 2.2 times the wage-equivalent for those hours. That premium can be fair for someone who has done the job at your stage; it is hard to justify for someone who will only write a plan.
For performance agencies, price the fee and the ad spend separately. Google's help page on average daily budgets says most campaigns never pay more than two times the average daily budget on a day, or 30.4 times it in a month. Worked example for an invented seed startup, Northwind Analytics: a $45 average daily budget can spend up to $90 on one day and $45 × 30.4 = $1,368 in a month, so $4,104 over a 90-day test. Add a sample agency fee of $3,500 × 3 = $10,500 and the test costs at most $14,604.
What should a startup hand a marketing agency?
Hand the agency four things in writing before day one: positioning, the ideal customer, the budget and the one result you are paying for. An agency that has to guess these will fill the gap with its standard playbook. If you can't write the customer line yet, do our two-week ICP test first.
If your homepage line is still vague, fix it before the brief; our B2B positioning examples show weak lines rewritten. Keeping accounts in your own name matters most at seed, when you may switch agencies after one quarter.
What should early-stage founders keep in-house?
Keep the work that teaches you who buys: early sales conversations, positioning, pricing and the first outbound messages. Y Combinator co-founder Paul Graham's essay Do Things that Don't Scale (July 2013) calls recruiting users manually the most common unscalable thing founders have to do at the start: "You can't wait for users to come to you. You have to go out and get them." An agency can send messages for you, but it can't hear what a lost prospect meant.
Practitioner threads point the same way on senior hires. In an r/SaaS thread on hiring a fractional CMO started in May 2023, at least five replies described the same gap: fractional CMOs used to large teams wrote plans, and the startup had nobody to carry them out. The most upvoted reply put it as "the CMO also needs to execute their own plan." In an r/startups thread from May 2026 where a Series A founder asked when to hire a PR firm, six replies said a Series A company doesn't need a PR agency, while an independent publicist and one other reply said PR takes time and is worth starting early. That is two threads, a pattern to test, not proof.
| Keep in-house | Fine to hand off |
|---|---|
| First 20 to 50 sales conversations | Ad build, bidding and reporting |
| Positioning and pricing decisions | Article drafts from your outline and interviews |
| Choosing the ideal customer | Landing page design and testing |
| Replies from interested prospects | Press list building and pitching, once the story is set |
Our routine for founder-led sales in 30 minutes a day shows how to keep the left column going without a sales hire.
A 90-day agency test with exit criteria
Run any startup agency engagement as a 90-day test with exit criteria agreed before it starts. Ask for a 90-day term with 30 days' notice instead of a 12-month contract; if an agency won't do that at seed, that tells you how confident it is.
Days 1 to 14: set up and baseline
Agency reads the brief, gets access, and writes down your current numbers: leads, meetings and cost per meeting from your own outreach. Nothing launches without tracking that you can see.
Days 15 to 45: two or three small tests
For example, two ad angles to one buyer, or four articles on problems your sales calls raised. Budget stays at the test ceiling.
Day 45: midpoint review
Kill the weakest test and move its money to the best one. If no test has produced a single qualified conversation, ask what the agency will change, in writing.
Days 46 to 90: run the winner
Spend on the best test only, and count the one result from the brief.
Exit criteria for the Northwind Analytics example ($14,604 maximum test cost), written into the contract:
| Day-90 result | Cost per qualified meeting | Decision |
|---|---|---|
| 12 or more qualified meetings | $14,604 ÷ 12 = $1,217 or less | Continue for another quarter, possibly at a higher budget |
| 6 to 11 | $1,328 to $2,434 | Renegotiate scope or fee, or keep only the best channel |
| Under 6 | More than $2,434 | Exit and bring the work back in-house |
Compare those numbers with your own baseline from days 1 to 14. An agency is worth keeping when it beats what you were already doing per meeting, or matches it while freeing hours you can spend on sales.
Where software fits, and what to do this week
Some of the repeatable agency work at seed, such as finding prospects and sending first messages, can also run on software. Siela's Lead Finder, for example, looks for people with a reason to reach out now, scores each lead hot, warm or cold with a one-line reason, and sends within the daily goals you set: on LinkedIn and X from accounts you sign in to yourself, and by email from a Gmail mailbox you connect. Use the same 90-day test and exit table on it as you would on an agency.
This week: write the one-page brief above, decide your day-90 result and ceiling, and send it to any agency before the first call. For the wider question of which channels to run at your stage, see our sibling guide to marketing for startups.
Frequently asked questions
What does a marketing agency for startups do?
It runs one or more channels for you: paid ads, content and search, PR, or outreach, and some add a senior strategist. For a startup the useful version is narrow: a defined test on one channel, toward one result such as qualified meetings, with accounts kept in the founder's name and weekly numbers you can check yourself.
How much should a startup spend on a marketing agency?
Set a hard ceiling for a 90-day test before you talk to anyone, covering the fee and any ad spend separately. In the worked example, a $3,500 monthly fee plus a $45 Google Ads daily budget costs at most $14,604 over 90 days. Spend more only after the test beats your own cost per meeting.
Should a seed startup hire a fractional CMO or an agency?
Hire a fractional CMO when you need decisions and someone to manage agencies or hires, and an agency when you need hands on one channel. At seed, many founders have nobody to carry out a plan, so pick a fractional who will also do the work, or start with a capped agency test on the channel you trust most.
When should a startup hire a PR agency?
When you have news a reporter would cover, such as a funding round, a launch or original data, and your story is already clear in your own sales calls. Before that, a PR retainer mostly pays to look for a story. A single project around one announcement is an easier first test than a monthly retainer.
What should a startup agency contract include?
A 90-day term with 30 days' notice, the one result you are paying for and how it is counted, a spending ceiling, a weekly written report, and ad and analytics accounts owned by the startup. Add the exit criteria table to the contract so the day-90 decision is already agreed before work starts.
Sources
- Ahrefs: SEO Pricing, 439 People Polled (checked 5 Nov 2026)
- The CMO Survey 2026: Topline Report (checked 5 Nov 2026)
- The CMO Survey 2026: Firm and Industry Breakout Report (checked 5 Nov 2026)
- BLS Occupational Outlook Handbook: Advertising, Promotions, and Marketing Managers (checked 5 Nov 2026)
- Google Ads Help: About average daily budgets (checked 5 Nov 2026)
- Paul Graham: Do Things that Don't Scale (July 2013)
- r/SaaS: Have you considered hiring a fractional CMO? (checked 5 Nov 2026)
- r/startups: At which point do we hire a PR team (checked 5 Nov 2026)
- Paul Graham: Bio (checked 5 Nov 2026)