HubSpot Marketing Hub or an Agency Retainer: What Each One Buys a Team of One
A first marketing hire at a Series A company usually gets one of two offers in the first month. The CEO says “we have budget for HubSpot Professional” or the CEO says “we have budget for an agency.” Sometimes both, which is how a company with one marketer ends up paying $12,600 for a tool and $120,000 for a retainer and still has nobody answering the demo request that came in at 9pm.
This post puts the two offers side by side for the person who has to make one of them work. What each costs, what each actually buys, the thing neither of them does, and the third column that did not exist in a usable form two years ago. Prices are from vendor pricing pages and agency-published guides, checked 2026-09-05.
The invoice
| Marketing Hub Professional | B2B agency retainer | |
|---|---|---|
| Year-one cost | $9,600 subscription on annual terms plus $3,000 required onboarding, about $12,600, per HubSpot’s pricing page | $60,000 to $300,000 at $5,000 to $25,000 a month, per agency-published guides such as New Perspective’s |
| What is included | Three seats, 2,000 marketing contacts, workflows, A/B testing, custom reports, three months of onboarding guidance | A shared team, a defined scope, their process, monthly reporting |
| Commitment | Annual for the list price; month-to-month at $890 | Typically six to twelve months, with a 4 to 8 week onboarding before work ships |
| Extra costs | Seats from $45, contact tiers from $250 per 5,000, credits for AI agents, the SMS add-on | Revisions beyond scope, extra channels, and the software seats they run in, which is often HubSpot |
On the invoice, this is not close. Professional is about a tenth of a mid-range retainer. The reason it is a real decision is the next table.
What each one actually buys
Marketing Hub Professional buys a workshop. The workflow builder, the email editor, the landing page builder, the reporting. All of it is powerful and all of it is empty on day one. Someone has to design the sequences, write the emails, build the pages, set up the reports and maintain the lot. If the someone is one person, Professional is a department’s toolset with a department’s setup time and one pair of hands. We mapped who it is for in the HubSpot cliff.
An agency retainer buys hands. A strategist, a writer, a designer and an account manager, shared across a dozen clients, working to a scope. The campaign gets written and shipped without the marketer doing it. What you do not get is their context staying with you when the engagement ends, or their speed: a mid-size retainer runs on a monthly cycle and a revision round takes days. And most agencies run inside your software, so the retainer sits on top of a tool subscription rather than replacing it. A large share of B2B agencies are HubSpot partners and will recommend Professional as part of the engagement, which is how a company ends up with both.
The full cost maths for agency versus in-house versus the third path, with fully loaded salary figures, is in Marketing agency vs in-house vs AI. This post is narrower: the tool versus the retainer, for the person who already exists.
The thing neither one does
Answer the lead.
Marketing Hub Professional can put a chatbot on the site and, on credits, the Customer Agent, which we priced month by month in what HubSpot Customer Agent costs a team of three. Out of the box, replies to a campaign land in an inbox for your team to answer, and the email reply drafted at 9pm is drafted by whoever is awake.
An agency does not do this at all. Answering inbound is out of scope for almost every marketing retainer on the market. The agency’s job ends when the campaign ships; the reply is yours. So the company that spent $120,000 on demand generation is still the company whose demo request waited until the next morning.
For a Series A company selling through conversations, that gap is where the pipeline goes. The campaign worked. The reply did not get answered fast enough. A competitor’s did.
A useful way to hear the two offers: Professional is “here is a very good kitchen.” The retainer is “here is a chef who visits once a month.” Neither is a meal at 9pm on a Saturday. The marketer who accepts either offer is still the person who has to make one, which is why the decision should be about what gets the work done, not what the invoice says.
When each one is the right call
Buy Professional if you are, or will soon be, a department: three or more marketers, a list past 2,000, weekly multi-channel campaigns, and someone with a quarter to spend in the workflow builder. It is the right tool for that team.
Sign the retainer if the work is specialised and scaled: $50,000 a month or more in paid media, a brand campaign that needs real creative firepower, or a launch that needs more hands than you can hire in time. Agencies genuinely win those, and their cross-account pattern recognition is worth the fee.
Do neither if you are one to three people who need the campaign made, the page live, the follow-ups sent and the replies answered, this quarter, on a budget that has to survive a board review. That is the third column.
The third column
One marketer plus a system that does the production and the response. The marketer owns strategy, positioning and approval. The system drafts the campaign from a brief, creates the images, publishes the email, the social posts, the landing page and the blog post, runs the follow-ups based on what each lead does, answers website chat and text replies in seconds, and books the meeting inside the conversation. Email replies are drafted for approval, never sent on their own. It runs against the HubSpot or Salesforce CRM the sales team already uses, so nothing migrates.
It prices like software, not like a retainer, and unlike the workshop it does the work rather than waiting to be operated. Marqeable is one of these: private beta, a small early cohort, month-to-month, hands-on onboarding included, beta pricing quoted on the call and locked for life for early customers. The homepage comparison puts it next to Marketing Hub and next to an agency retainer, one at a time, row by row, and says where each of them wins.
Frequently asked questions
Is HubSpot Marketing Hub cheaper than a marketing agency?
On the invoice, by a wide margin: about $12,600 in year one for Professional versus $60,000 to $300,000 a year for a B2B retainer. The agency includes the people who do the work; the software does not.
Does an agency replace the need for HubSpot?
Rarely. Most agencies run inside your tools and ask for seats. A retainer usually sits on top of a subscription, and many agencies are HubSpot partners who recommend Professional as part of the engagement.
Who answers inbound leads under each option?
Your team, in both cases. Marketing Hub can add the Customer Agent on credits; an agency almost never has answering leads in scope. The 9pm demo request waits until morning unless something on your side answers it.
What is the third option for a team of one?
One marketer with a system that drafts, publishes, follows up, answers replies and books meetings, with the marketer approving what goes out. Software pricing, and it does the work rather than waiting to be operated.
The bottom line
Professional is a workshop; the retainer is a visiting crew. Both are honest offers for the right company, and both leave a team of one holding the reply. If you are a department, buy the workshop. If you need a specialist at scale, sign the crew. If you are one marketer with a board that wants pipeline this quarter, the column to look at is the one where the campaign gets made and the lead gets answered without hiring either.
See it live: Marqeable drafts full campaigns from a brief, runs follow-up automations across text and email, answers every visitor and reply, and links revenue to the exact message, with a human approving every send.
Marqeable runs your campaigns, answers every visitor, text, and email in seconds, and turns them into booked jobs and meetings - even at 9pm on a Saturday. We’re in private beta with a small early cohort. Get early access
