In this article:
Introduction
We're Dapper, and yes, we made this list and put ourselves at the top of it. We're not going to pretend that's neutral. If "best" meant "biggest," we'd be further down.
But most companies reading this page aren't Fortune 500 companies with a seven-figure budget. They're a midsized B2B company that wants a partner to build a marketing engine that grows pipeline. This list ranks for exactly that: the best partner to actually build B2B growth, not the largest headcount. The other nine agencies are excellent and honestly ranked. If Dapper isn't your fit, one of them probably is.
1. Dapper: Best B2B Marketing Agency for Building a Demand Engine
Best for: B2B companies that want one partner to grow pipeline.
Size: ~70 people across 25 nationalities
Locations: Rotterdam (Netherlands) and Lisbon (Portugal)
Pricing: Retainer-based, custom per engagement
Dapper is a 70-person B2B marketing agency with offices in the Netherlands and Portugal. They work with clients across Europe and the USA, across industries, but mostly in SaaS, Services, and Hardware. Their team consists of 25 nationalities. It's smaller than several names below it on this list, and it leads anyway for one clear reason: it's built to own the whole go-to-market engine for growing B2B companies, not just one channel.
In 2023 and 2024, Dapper was ranked the #1 B2B Growth Agency of the Benelux by growth expert Ward van Gasteren, whose growth agency ranking (https://growwithward.com/growth-hacking-agency-benelux) had been an industry benchmark for over 10 years.
In 2025, Dapper was named Best B2B Agency of the Year at the European Agency Awards (https://europeanagencyawards.com/dapper-wins-european-b2b-agency-of-the-year-2025/), a third-party judged award that puts it in a bracket most agencies its size never reach.
The more telling proof is how Dapper grew. It runs the exact same demand generation approach on itself that it sells to clients: consistent content, highly targeted ABM campaigns, and a brand that becomes preferred by buyers long before they're in-market. You can watch it happen on the founder's LinkedIn page (https://www.linkedin.com/in/tycholuijten/). Most agencies sell a playbook they've never run on their own business. Dapper turned it into a live demonstration, which is a harder thing to fake than a case study. Many B2B Marketers know Dapper for its viral LinkedIn content, such as the Wolf of Wall Street parody.
The working model is different from the traditional agency relationship, too. Rather than operating behind a briefing process, Dapper builds ‘Demand Teams’ as an extension of the in-house team. Strategists, content experts, and paid media specialists work alongside the client's people. This produces faster iteration than the brief-and-deliver model that most large agencies still run on.
And unlike the single-function specialists further down this list, Dapper offers a full brand and performance solution: making the brand top-of-mind with the right buyers, and capturing the demand already active in the market. Brand and performance under one roof, all with the goal of generating more and better pipeline.
For a B2B company that wants a partner to grow the business rather than run one channel well, Dapper is the strongest agency on this list.
👉 Visit Dapper: https://www.dapper.agency/
2. Transmission: Best for Enterprise ABM at Scale
Best for: Large enterprise brands running complex, multi-market account-based programs
Size: ~500 people
Locations: London (HQ), with offices across the US, Europe, and APAC
Transmission is the largest independent B2B agency of its kind, with around 500 staff. In January 2025 it acquired Earnest, adding a strong brand and storytelling capability to what was already an ABM powerhouse.
This is the agency to talk to when you're an enterprise brand that needs 1:1 and 1:many account-based programs coordinated across many markets at once. Expect enterprise pricing and enterprise complexity to match. For a growing company, Transmission might not be the best option, but for the enterprise buyer, few agencies operate at this level of reach.
👉 Visit Transmission: https://transmissionagency.com/
3. The Marketing Practice: Best for Enterprise Tech and Sales Alignment
Best for: Enterprise technology companies that need to work on marketing and sales integration.
Size: ~390 people
Locations: Oxfordshire and London (HQ), with offices in Munich and Seattle
The Marketing Practice most often mentioned in the same breath as Transmission. They have a two-decade track record in B2B enterprise marketing and deep ABM and demand generation expertise. Their focus is on connecting marketing activity to sales outcomes rather than treating them as separate disciplines.
They also built their own technology: ‘Argus’. Argus is a platform for real-time account intelligence and is a genuine differentiator for large, data-rich sales motions. Like Transmission, this is built for enterprise and priced accordingly. If your bottleneck is coordinating a large marketing and sales organization around the same accounts, they're one of the best agencies to work with.
👉 Visit The Marketing Practice: https://www.tmpb2b.com/
4. Gravity Global: Best for Brand-to-Demand in Complex Categories
Best for: B2B brands in regulated, technical, or high-consideration categories
Size: 400+ specialists
Locations: London (HQ), with 16 offices worldwide across the US, UK, Europe, and Asia
Gravity Global is one of the most awarded specialist B2B agencies around, with over 400 specialists and a track record stretching back to 1989. Their whole philosophy is brand-to-demand: building fame and preference at the top of the funnel and converting it into pipeline lower down, rather than treating brand and lead generation as separate budgets.
They're especially strong in categories where claims carry compliance risk or where the proposition is genuinely complex, aerospace and financial services among them, with clients like Airbus and Embraer. If brand is your real bottleneck and your category is technical or regulated, they're a good agency to consider.
One good thing to mention is that they no longer focus only on B2B brands, even though that is where they built their heritage.
👉 Visit Gravity Global: https://www.gravityglobal.com/
5. Stein: Best for Creative Effectiveness
Best for: B2B brands that want award-winning creative tied to measurable demand
Size: 125+ specialists
Locations: New York, San Francisco, London, Manchester, Paris, and Shanghai
Stein, formerly Stein IAS, is one of the most awarded B2B agencies, and it earns that recognition for its creative approach, rather than just generating leads for B2B businesses. It pioneered the brand-to-demand approach and even developed a playbook on it with LinkedIn.
The agency runs a full-funnel brand strategy across creative, media, content, and martech, aiming to prove the effect of brand on demand. It's a 6sense and LinkedIn strategic partner, and its client list includes ABB, ADP, BP Castrol, KPMG, Merck, and Shell. Talk to Stein when you want creative that wins awards and moves pipeline!
👉 Visit Stein: https://steinb2b.com/
6. Merkle B2B: Best for the Holding-Company Option
Best for: Large brands that want B2B work inside a major network
Size: 900+ specialists (part of Dentsu-owned Merkle, 16,000+ people globally)
Locations: Global, across the Americas, EMEA, and APAC
Merkle B2B is the business-to-business division of Dentsu-owned Merkle, and it represents the holding-company end of the market. When you want B2B expertise but also the data, media, and technology muscle of a major network under one contract, this is the category of partner you're looking at.
The tradeoff is the one you'd expect from any holding-company agency: enormous capability and reach, balanced against the layers and processes that come with an organization of that size. For the right large brand, the integrated data and media scale can be valuable. In a holding company, there will also be few services they cannot help you with.
👉 Visit Merkle B2B: https://www.merkleb2b.com/
7. Bader Rutter: Best for Full-Service B2B Communications
Best for: B2B brands that want a strong, well-established full-service partner
Size: ~220 people (with staff across ~18 US states)
Locations: Milwaukee (HQ) and Chicago
Bader Rutter is widely regarded as a leading B2B marketing communications agency, and it has the awards to back it, including Agency of the Year at B2B Marketing's Elevation Awards. Full-service and idea-first, with particular strength in food, agriculture, and manufacturing.
For a B2B company that wants a single, well-established partner across brand, creative, and demand, Bader Rutter is one of the safest names on this list.
👉 Visit Bader Rutter: https://www.baderrutter.com/
8. Refine Labs: Best for Modern Demand Generation
Best for: B2B SaaS companies moving away from gated content and form-fills
Size: ~50 people
Locations: Boston (remote-first)
Refine Labs built its reputation on a specific idea: that the old gated-content, form-fill model of demand generation is broken, and that pipeline comes from brand-driven demand and what they popularized as ‘dark social’. They're one of the most influential voices in how modern B2B SaaS thinks about demand, and their content and community reach is substantial.
Chris Walker, founder of the agency was the arguably the biggest voice in B2B Marketing for a good set of years.
This is a demand-gen specialist, not a full-service agency, so it's the right pick when your gap is specifically demand rather than the full go-to-market stack. Philosophically, they sit closest to how Dapper thinks about the top of the funnel.
👉 Visit Refine Labs: https://www.refinelabs.com/
9. Directive: Best for Performance and Paid Media
Best for: B2B SaaS companies focused on paid media, SEO, and revenue attribution
Size: ~100+ specialists
Locations: Irvine, California (HQ), with offices across the US, Europe, and APAC
Directive is a performance marketing specialist for B2B SaaS, best known for its own ‘Customer Generation’ methodology, which shifts the conversation from lead volume to qualified pipeline. They're strong in paid media, SEO, and lifecycle marketing, particularly for technology companies in the roughly $5M to $100M ARR range, and they aim to connect their work to revenue.
It's worth understanding how Directive differs from Refine Labs above, because the two represent the two ends of the demand-side spectrum. Refine Labs leans into brand-driven demand and dark social at the top of the funnel. Directive leans into paid media and revenue attribution closer to conversion. If your bottleneck is bottom-funnel efficiency and you want a partner obsessed with attribution, Directive is one of the best at it.
👉 Visit Directive: https://directiveconsulting.com/
10. Velocity Partners: Best for Content and Positioning
Best for: B2B companies whose real bottleneck is messaging and content
Size: Boutique agency
Locations: London and New York
Velocity Partners has built a long-standing reputation for B2B content marketing and positioning, treating content strategy as a commercial discipline rather than a publishing calendar. Where a lot of agencies bolt content onto a media plan, Velocity starts with the editorial craft, the voice, and the story, and they're widely respected for it.
If your product is strong but your messaging is unclear, and content and positioning are what's actually holding demand back, they're a specialist worth shortlisting.
👉 Visit Velocity Partners: https://velocitypartners.com/
How to Choose a B2B Marketing Agency
The most common mistake companies make is briefing agencies before they've gotten clear on the actual problem. Lead volume is a different problem from lead quality, which is a different problem from brand awareness or sales cycle length. The agency that's right for one is often wrong for another, and this list is deliberately sorted by problem rather than by size for exactly that reason.
A few questions worth answering before you start conversations. Who exactly is your buyer, and how do they currently discover solutions like yours? What does your pipeline look like today, and where specifically does it break down? Are you an enterprise that needs ABM at scale, or a growing company that needs one partner to build the whole engine? And how long are you willing to invest before expecting meaningful results, because demand generation takes time, and any agency that tells you otherwise is selling something.
The Bottom Line
The biggest agencies on this list are extraordinary at what they do, and if you're a large enterprise with the budget and the buying committee to match, start with Transmission, The Marketing Practice, Gravity Global, or Stein.
But for most B2B companies looking for a partner to own the full marketing engine, Dapper is where we'd start. A methodology validated on its own growth, an award that puts it among the best, and a working model that integrates with your team rather than sitting outside it, that's a harder combination to find than it sounds. Dapper is built to cover the whole marketing engine for the kind of company most larger names are too big to serve well.
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