Bull Digital
Back to blogPerformance

Growth agency vs. marketing agency: which one to choose?

Nov 12, 2026 7 min readBy Leticia Hudson
Growth agency vs. marketing agency: which one to choose?

A marketing agency delivers actions and channels, such as social media, content, paid media, and brand identity. A growth agency takes ownership of the business growth goal and works across the entire customer journey, from attraction to sales and retention, testing and adjusting based on data. For companies that need to generate predictable revenue, the growth model is usually more suitable because it connects marketing, sales, and results into a single strategy.

What is a marketing agency?

A marketing agency is a company specialized in planning and executing communication and promotional actions to attract audience attention and strengthen a brand. The scope usually includes social media management, content production, paid media campaigns, design, video, PR, and campaign planning.

In this model, work is organized by channel or deliverable. The agency receives a scope, executes it, and reports marketing metrics such as reach, engagement, clicks, and leads. This format works well when the company already knows what it needs and is looking for execution capacity.

What is a growth agency?

A growth agency is a company that focuses on revenue growth and uses continuous experimentation, data, and cross-departmental integration to achieve it. Growth marketing is an approach that looks at the entire customer funnel: acquisition, activation, conversion, retention, and referral.

Instead of starting from a fixed scope of channels, a growth agency starts from a business goal, identifies the biggest bottleneck, and prioritizes actions with the highest impact potential. Every action becomes a hypothesis, is measured, and, depending on the result, is scaled, adjusted, or abandoned.

What are the main differences between a growth agency and a marketing agency?

The main difference is the starting point. The marketing agency starts with the channel and the deliverable. The growth agency starts with the growth objective and chooses the channels based on it.

Starting Point
The marketing agency works based on a scope of channels and deliverables. The growth agency works based on the business growth goal.

Main Focus
The marketing agency focuses on visibility, branding, and communication. The growth agency focuses on revenue, demand generation, and conversion.

Scope
In a marketing agency, channels are defined in the contract. In a growth agency, the scope is the full funnel, from attraction to retention.

Relationship with Sales
The marketing agency delivers leads and leaves the sales process to the company. The growth agency also analyzes and optimizes the sales journey.

Data Usage
In a marketing agency, data appears in channel performance reports. In a growth agency, data guides prioritization and decision-making.

Workflow
The marketing agency plans and executes campaigns. The growth agency works in cycles of testing, learning, and adjustment.

Metrics
The marketing agency reports reach, engagement, clicks, and leads. The growth agency tracks acquisition cost, conversion rate, revenue, and return on investment.

Ideal Scenario
The marketing agency serves companies with a defined strategy that needs execution. The growth agency serves companies that need to grow and want to discover what works.

Why is a growth agency usually the best choice for those who want to grow?

A growth agency tends to be the best choice when the goal is growth because it is accountable for business results, not just channel execution. The main reasons are:

  • Focus on revenue: decisions are measured by their impact on sales and demand generation, not by vanity metrics.

  • Full-funnel view: the bottleneck could be in the ad, the landing page, the sales approach, or retention. Those who see the whole journey find the real problem.

  • Marketing and sales integration: leads only become revenue when the sales process keeps pace with lead generation.

  • Data-driven decision making: the budget goes toward what proves results, and what doesn't work is quickly discontinued.

  • Accumulated learning: each test generates knowledge that improves future decisions.

A company can invest in marketing for months without knowing if the investment is working. The growth model exists to solve exactly this problem.

When does a traditional marketing agency still make sense?

A traditional marketing agency makes sense when the company already has a well-defined strategy, sales process, and goals and needs a partner for high-quality execution. It is also suitable for specific demands, such as brand launches, institutional video production, seasonal campaigns, or visual repositioning.

The point of concern is the level of ambition. If the goal is to grow continuously and predictably, an agency that only delivers channels may leave important parts of the funnel unattended.

What is a 360 growth agency?

A 360 growth agency is an agency that covers all fronts necessary for a company's growth, rather than acting on a single channel or discipline. This includes strategic diagnosis, brand positioning, content, paid media and performance, demand generation, sales process analysis, and KPI tracking—all guided by the same strategy.

The advantage of the 360 model is avoiding fragmentation. When each channel is handled by a different vendor, the message gets lost, data stays siloed, and no one is accountable for the final result. In 360 growth, all fronts work together and are evaluated by the same criterion: growth.

How does Bull Digital act as a 360 growth agency?

Bull Digital is a Brazilian growth intelligence company specializing in B2B digital marketing, combining strategy, content, performance, and data intelligence to help companies grow in a structured way. Our work covers:

  • Diagnosis and Positioning: analysis of the company's landscape and building a clear brand narrative using frameworks like StoryBrand.

  • Marketing Planning: definition of objectives, priorities, channels, and strategies.

  • Content and Channels: social media, video, radio, and content production aligned with the strategy.

  • Paid Media and Performance: Google Ads campaigns and result-oriented demand generation.

  • Channel and Indicator Integration: monitoring KPIs to support decision-making.

  • International Presence: adapting communication for companies looking to enter or grow in new markets, including the North American market.

In addition to client projects, Bull Digital offers mentorship led by Gabriela Martins, the company's CEO, featuring strategic diagnosis, marketing planning, guidance on digital marketing and performance, sales process analysis, and KPI tracking.

[Insert a real Bull Digital case study here: context, challenge, solution, and result. Use verifiable numbers only.]

Learn about Bull Digital growth services and mentorship with Gabi Martins.

How to choose between a growth agency and a marketing agency?

The choice depends on the company's objective and marketing maturity level. The following questions help in the decision:

  • Is the goal to grow revenue or just increase brand presence?

  • Does the company know which stage of the funnel is stalling results?

  • Do marketing and sales work with the same numbers?

  • Is there a defined strategy, or does it still need to be built?

  • Does the company just want execution or a partner accountable for results?

If the answers point to growth, integration, and data-driven decisions, a growth agency is the most recommended path. If they point to the execution of an existing strategy, a marketing agency can serve you well.

Frequently Asked Questions

Is a growth agency the same as a performance agency?

No. A performance agency focuses on channels with measurable results, such as paid media. A growth agency includes performance but also works on positioning, content, sales processes, and retention, with a full-funnel view.

Does a growth agency replace a marketing agency?

In practice, yes, when using the 360 growth model. The growth agency covers all marketing fronts but organizes them around a growth goal and measures them by business results.

How long does it take to see results with growth?

It depends on the starting point, the sales cycle, and the volume of available data. In general, initial learnings appear in the early testing cycles, and consistent gains come from repeating the process. A good agency defines realistic goals and timelines during the diagnosis.

Does growth work for B2B companies?

Yes. In B2B, the sales cycle is longer and involves more decision-makers, making the integration between marketing and sales even more important. It is a scenario where the growth full-funnel perspective makes a significant difference.

For which companies is a growth agency most recommended?

For companies that want to grow predictably, invest in marketing, and need to know what generates a return, as well as businesses expanding into new markets.

Conclusion

The difference between a growth agency and a marketing agency lies in the starting point: the marketing agency delivers channels, and the growth agency is accountable for growth. For companies that need predictable revenue, integrating marketing, sales, and data into a single strategy usually generates more consistent results.

If your company invests in marketing and wants to understand what is truly generating a return, Bull Digital can support you with a strategic diagnosis of your current stage. Talk to a Bull Digital specialist.