Let’s start with a conflict-of-interest disclosure: Desorbitante is a B2B marketing agency, so we have every incentive to tell you that hiring one is a good idea. That is why this article will do the opposite of what you expect: we will also tell you when you should NOT hire any agency, what prices are reasonable and which questions make any agency uncomfortable, including ours.
The reason is pure enlightened self-interest: a client who signs for the wrong reasons leaves after four months, frustrated and rightly so. An honest evaluation before signing saves both sides the worst-case scenario.
If you are comparing agencies for your company in Spain or LATAM, this guide gives you the complete framework: what a B2B agency actually does, whether you need one, what it should cost and which signals should stop you cold. For the specific questions to ask each agency before signing, we have a separate guide: how to choose a B2B acquisition agency: the 10 key questions.
What exactly does a B2B marketing agency do?
A B2B marketing agency designs and operates systems to generate sales pipeline: it identifies the accounts that fit your ideal customer, builds the channels to reach them (cold email, LinkedIn, content, ads, events) and turns that work into measurable meetings and opportunities. Its end product is not a pretty campaign: it is pipeline.
It helps to distinguish it from three figures it often gets confused with:
- Generalist agency: does branding, websites, social and creative for any kind of company. It can be excellent at that, but selling to companies (buying committees, 1-to-6-month cycles, high tickets) demands a different mechanic it rarely masters.
- Consultancy: tells you what to do, but does not do it. It delivers strategy, diagnosis and a plan. Useful if you have a team to execute; frustrating if you do not, because the plan stays in a PDF.
- SDR as a service: rents pure sales execution (people sending messages and booking meetings) with little strategic layer. It works when you already know exactly who to target and with what message; it fails when that part is unsolved.
A good B2B agency combines all three layers: strategy, execution and the technical infrastructure (data, domains, deliverability, automation) that keeps everything working over time.
Do you need a B2B agency? Signs that you do, and that you don’t
Here comes the part few agencies write. There are situations where hiring an agency is throwing money away, and spotting them in time is the most profitable decision you can make.
Signs that you do
- Your pipeline depends on referrals: you are growing, but you do not control the tap. When word of mouth slows down, there is no plan B.
- Founder-led sales has hit its ceiling: the founder closes well, but it does not scale. You need a system that generates conversations without depending on their calendar.
- Your team lacks the technical craft: deliverability, data, multichannel sequences. Learning it internally costs months and expensive mistakes (a burned domain takes weeks to recover).
- You need speed: an agency with a proven system produces in 3-6 weeks what a new team needs two quarters to build.
Signs that you don’t (yet)
- You don’t have product-market fit: if your current customers do not renew or refer, an agency will only amplify the problem. Outbound multiplies what already works; it does not fix what doesn’t.
- Your ticket can’t support the cost: with an average ticket below 3,000-5,000 € per year, the cost-per-meeting and CAC math rarely works. Before hiring, calculate what CAC your model supports.
- You expect results in two weeks: in B2B, the first consistent meetings arrive between week 4 and week 8, and closed deals depend on your sales cycle. If your cash cannot survive a quarter, the problem is funding, not marketing.
If you are torn between an agency and hiring internally, we have a full comparison in B2B agency or internal salesperson.
How much does a B2B marketing agency cost in Spain and LATAM?
The market in Spain and LATAM moves in three fairly recognizable tiers. In LATAM, dollar prices tend to be equivalent or somewhat lower, with the same structure.
- Entry (1,000-1,500 €/month): one main channel operated well, usually cold email or LinkedIn outbound, with limited volume. A reasonable starting point to validate.
- Mid (1,500-4,000 €/month): a multichannel system, more volume, more data layers and reporting. This is where most B2B companies with small or mid-sized sales teams work.
- Enterprise (from 5,000 €/month): several business lines or markets, account-based marketing on strategic account lists, deep integration with the sales team.
And anything under 800 €/month? Be suspicious. Operating an account well requires senior hours: strategy, copywriting, data, infrastructure and continuous review. At 500 €/month, either your account is run by someone inexperienced juggling twenty other clients, or the “service” is an automated template fired at a purchased list. In outbound, that is not savings: it is burning your domain and your brand at clearance prices.
| Provider type | Indicative monthly cost | When to choose it |
|---|---|---|
| Freelancer / consultant | 500-1,500 € | Audits, one-off strategy, scoped projects |
| Generalist agency | 800-2,500 € | Brand, website and content with no direct pipeline goal |
| Specialized B2B agency | 1,300-4,000 € | Predictable pipeline: outbound, demand, multichannel |
| SDR as a service | 2,000-5,000 € | Strategy already validated, you only need execution |
| In-house team | 3,000-5,500 € per person | Sustained high volume and intent to internalize |
The ranges are indicative and every case has nuances, but they give you the map. We publish ours openly on our pricing page: if an agency will not even give you a bracket before the third call, you already have a data point on what working with them will be like.
Most bad agency experiences were detectable before signing: almost every red flag already shows up during the sales process.
The questions to ask before signing
Before signing, it is worth asking the agency a battery of concrete questions: who owns the data and the accounts, what lock-in it requires, who will run your account, what reporting you will get, how it defines a qualified lead or what happens if it is not working after three months. These are the ones that best separate a serious agency from one that improvises, and you should ask all of them equally, ourselves included.
We have gathered them, with the answer to look for and the one that is a red flag, in a separate guide: how to choose a B2B acquisition agency: the 10 key questions.
Red flags that should stop you cold
- Absolute result guarantees: “we guarantee 20 meetings per month” without having analyzed your ICP, your ticket or your market is casino marketing. Activity, process and transparency can be guaranteed; results depend on variables no agency controls 100%.
- Opacity around data: if you cannot see the tools, the lists or the raw metrics whenever you want, there is something they do not want you to see.
- 12-month lock-ins: an agency confident in its work does not need to tie you down by contract. Long lock-ins protect their revenue, not your results.
- “All inclusive” with no detail: one-page proposals with a flat price and zero breakdown of activities, volumes and deliverables. What is not written down does not exist.
- Prices far below market: as we saw: below 800 €/month in outbound, someone is cutting corners where you cannot see, and it is usually your reputation.
What does a good first quarter with a B2B agency look like?
This is what you should be able to expect, month by month, from a competent agency. Use it as a yardstick in sales conversations:
- Month 1, construction: fine-tuning the ICP with you, building and verifying lists, technical infrastructure (secondary domains, mailboxes, warm-up), messaging written and approved by you. Few meetings yet: the opposite would mean rushing.
- Month 2, first signals: campaigns live, first replies and first qualified meetings. Messaging is iterated on real data: which segment responds, which angle converts.
- Month 3, rhythm: stable volume, measurable cost per meeting, first opportunities moving through your pipeline and an informed decision on scaling, adjusting or stopping.
Closed deals depend on your sales cycle: if you sell in 3-to-6-month cycles, demanding signed customers in the first quarter is mathematically unfair. What you can demand from month one is full transparency on activity and progress. On our results page you can see what that progression looks like in real cases.
Frequently asked questions
How much does a B2B marketing agency cost in Spain?
Between 1,000 and 1,500 € per month on entry plans, between 1,500 and 4,000 € in the mid range where most companies work, and from 5,000 € for enterprise projects. In LATAM, equivalent or somewhat lower ranges in dollars. Below 800 €/month it is unlikely there is senior work behind it.
How long does a B2B agency take to deliver results?
The first qualified meetings usually arrive between week 4 and week 8; a stable, measurable rhythm, around month 3. Closed customers depend on your sales cycle, which in B2B runs from 1 to 6 months. Any promise of results in two weeks should make you suspicious.
Is an agency better than an internal salesperson?
To validate and start fast, the agency: it costs less in the first year and produces within weeks. For the long term with a validated playbook and high volume, internalizing wins. Many companies combine both: the agency generates meetings and the internal team closes.
What lock-in period is reasonable in an agency contract?
Three months is the fair standard: the system needs that time to get built and prove itself with data. Six months can be acceptable for complex projects. A mandatory 12-month lock-in protects the agency, not you, and is one of the clearest red flags in the industry.
What happens to my data if I leave the agency?
With a serious agency, you take it with you: domains, mailboxes, lists, campaign history and CRM are yours or get transferred when you leave. Demand that this is written into the contract before signing. If the agency refuses, you are paying to build an asset that will never be yours.
Choose the one that lets you leave
After everything above, the criterion fits in one sentence: the best B2B marketing agency is the one structurally prepared for you to leave whenever you want, because it bets on retaining you through results, not through contracts. Your data, short lock-ins, transparent reporting, explainable methodology.
Ask every candidate the 10 questions, compare the answers in writing and distrust anyone in a hurry to sign you. A good agency choice shows up in your pipeline for years; a bad one, in your P&L and your team’s morale for months. Take the two weeks of evaluation seriously: they are the best-paid hours of your quarter.
If you want to go deeper by model and channel, we have an expanded guide on how to choose a B2B acquisition agency and dedicated comparisons of outbound agencies and agencies for SaaS.
