Marketing agency, advisory or consultancy: what's the difference and which to hire

When a company's marketing stalls, the first question is usually "who should I hire?" Agencies, advisories and consultancies look like interchangeable options, and many companies pick one based on price or the best-looking portfolio. But the three models solve different problems. Hiring the wrong one is one of the most common reasons a marketing budget never pays off.

In this article you'll see what each one does, where each model works well, where it falls short and how to decide which one fits the stage your company is in.

What a marketing agency does

A marketing agency specializes in execution. It takes a brief and turns it into deliverables: social media posts, design work, videos, paid media campaigns, websites, emails and sales materials. The work usually runs in a cycle of brief, production, approval, publishing and reporting.

An agency's strength is producing good work on a steady schedule. Its weakness shows up when the brief is thin: if no one has defined what the brand needs to say, to whom and why, the agency does its best based on assumptions. The work looks good and goes out often, but it has no direction.

What a marketing consultancy does

A marketing consultancy specializes in diagnosis and recommendations. It comes in, gathers information, analyzes the business, the market and the competition, and delivers a report on what needs to change. It's usually a one-off project with a set start and end date.

Its strength is an outside, analytical view, free of the blind spots that come with being inside the operation. Its weakness is its distance from execution: the consultancy recommends and moves on. If the company has no one to lead the implementation, the recommendations risk staying on paper.

What a marketing advisory does

In English, "advisory" and "consultancy" often get used as synonyms, so here is the line we draw: a marketing advisory leads. It starts with a diagnosis, like a consultancy, but doesn't stop at the report. It defines the positioning, turns the strategy into an action plan and stays involved in execution alongside the company, working either with the in-house team or with a team of its own.

In practice, an advisory sits in the seat of an outside marketing director on retainer, much like a fractional CMO. It takes part in decisions, sets priorities, guides whoever is doing the work and answers for the business goal, not just for the volume of deliverables. A digital marketing advisory plays the same role with a focus on digital channels: social media, paid media, website, content and automation.

Marketing agency vs. advisory vs. consultancy

The simplest way to put it: the agency executes, the consultancy diagnoses and recommends, and the advisory leads. The real difference is who decides what to communicate and who answers for the result.

When to hire each one

Hire an agency when

• your brand positioning is defined and documented;
• you know what you want to say and who you're saying it to;
• what you're missing is production capacity, with volume and consistency.

Hire a consultancy when

• the open question is about direction and you need an outside read;
• you have an in-house team that can implement the recommendations on its own;
• the goal is a one-time decision, such as entering a new market.

Hire an advisory when

• you can't clearly explain what your brand is and who it's for;
• you've already invested in execution and the results never came;
• you need someone to set the strategy and see the execution through to the end.

Three questions to help you decide

1. Can I explain in one sentence what my brand is and who it's for? If not, start with a diagnosis.
2. Do I have people to execute? If you do, a project or a consultancy may be enough. If you don't, you need execution led by strategy.
3. What went wrong last time? If it was the quality of the work, change who executes. If the work was good and the results still didn't come, the problem started earlier.

Hiring execution without direction is like flooring it without knowing where you're headed: you get there faster, just to the wrong place.

Common hiring mistakes

• Choosing by portfolio. Beautiful work proves execution skills, not strategic ones.
• Comparing on price alone. Proposals with different scopes can't be compared. Look at what each one delivers and how it measures success.
• Starting with execution. Without defined positioning, any vendor will be working in the dark.
• Not agreeing on how to measure. If the goal isn't written down at the start, no one can be held to it at the end.
• Switching vendors without understanding what failed. Before you make a change, see what to check before you switch agencies.

How Arantho works

Arantho is a strategic marketing advisory. We work in three ways, always in this order: we start with the M.A.P.A. Diagnosis, which defines who the brand is and delivers an action plan; we move on to a strategic marketing project when there's a specific goal; and, when it makes sense, we take over execution with a complete marketing team.

If you're not sure which situation is yours, that uncertainty is already a good sign you should start with the diagnosis.

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