15 Best B2B Startup Marketing Partners of Europe in 2026

Finding the right B2B startup marketing partner in Europe isn’t easy. You’ll find classic and specialist agencies, advisors, fractional CMOs and hybrid growth partner teams, all promising results, all priced very differently, and all designed for different stages.

In this blogpost, we’ve pulled together 15 B2B-focused marketing partners with a strong European footprint and a clear startup or scale-up focus. 

For each one, we briefly cover who they’re best for, what they actually do in practice, and what kind of investment need you can realistically expect in EUR, so you can see which partners make sense for your stage, model and growth plans for 2026.

Picking the right B2B marketing setup

By 2026, most B2B buyers in Europe will have seen every version of “we’ll help you grow”. What they haven’t all seen is a marketing setup that actually fits their stage, sales motion and runway. That’s where the difference between an agency, a fractional CMO and a hybrid “marketing partner” starts to really matter. 

For this list, we focused on partners with a clear B2B startup focus, a strong European presence, and enough public information to infer realistic price ranges.

1. InnoMaker Partners

InnoMaker Partners is a Budapest-based, fractional CMO-style marketing partner built specifically for early-stage B2B startups in Europe.

We usually come in when there’s already a product, some sales conversations and maybe a few early customers, but no one truly owns marketing. 

Instead of choosing between a traditional agency, a solo consultant or rushing into a full-time senior hire, we offer a fractional CMO + embedded team model.

That means you get senior strategic leadership to set direction, prioritise and say “no” to the wrong bets, plus a hands-on team that can actually write, build, launch and iterate campaigns.

If you’d like to see what this looks like in practice, we’ve documented how we developed and implemented a complex, one-month omnichannel campaign for FP OilStop to find new partners in a detailed case study.

We’re best for B2B startups from pre-launch to Series A, especially those navigating fundraising, product in constant iteration and tight resources. We’re used to working inside messy realities: changing roadmaps, shifting ICPs, and limited bandwidth on the founder side.

The aim is to behave like an internal marketing team that understands runway and sales cycles, takes work off your plate, and focuses on traction, pipeline and shorter sales cycles rather than vanity metrics.

On our CMO partner page, we also share a detailed comparison table showing how our model differs from in-house marketing teams, classic agencies and marketing consultants.

Core services:

Typical price range:

Advisory- and strategy-only support usually starts in the high three-figure ranges per month, ideal when you need senior direction but still have internal capacity to execute.

Our fractional CMO service and team engagements typically start around €2.500-€5.000 per month, depending on markets, channels and how much execution we take over.

Pricing is designed to stay startup-friendly while still giving you access to senior marketing leadership and an embedded, agile team that moves at startup speed.

2. Growth Kitchen

Growth Kitchen is a specialised marketing agency for SaaS startups and scale-ups, focused on turning content, SEO and paid acquisition into trial sign-ups, demos and paying customers. They’re a good fit for teams that already have a live product and some initial traction, and want a SaaS-native partner to run their main growth channels end-to-end instead of stitching together freelancers.

Core services:

Typical price range:

According to their Clutch profile, Growth Kitchen typically works on projects in the $10.000-$49.999 range, with an hourly rate of $25-$49 and a minimum project size of $1.000+.

In practice, this usually means ongoing SaaS retainers in the mid four-figure EUR range and upwards per month, depending on how many channels they run and how aggressively the startup wants to grow.

3. Gripped

Gripped is a London-based B2B digital sales and marketing agency working with SaaS, tech and AI Series A/B startups and scale-ups, especially when they’re entering new markets or building a more predictable demand engine. They focus on tying marketing to pipeline and revenue, combining strategy, content, SEO and paid media with sales enablement for teams that are ready to invest seriously in growth.

Core services:

Typical price range:

Gripped’s pricing page lists three main tiers: Advisory or Execution from £3.500/month, Performance from £7.500/month and Scale from £15.000/month, with paid media budgets billed separately and typically ranging from £5,000-£150,000+ per month.

In practice, this means most growth-stage engagements start at around €5.000/month and can go well beyond €17.000/month in agency fees for multi-channel, scale-focused programs, plus media spend and any larger website projects.

4. Advance B2B

Advance B2B is a Helsinki-based full-stack B2B marketing agency that works primarily with ambitious B2B tech and subscription companies. They combine brand, strategy, content, paid acquisition and HubSpot implementation to turn marketing into a structured growth driver rather than an ad-hoc support function.

Core services:

Typical price range:

External directories list a minimum project size of $50.000+ and an hourly rate around $50 for Advance B2B.

In practice, that level of investment usually translates into multi-month projects and retainers in roughly the €15.000-€40.000+ per month range, depending on how many markets, channels and HubSpot components are included.

5. Skale

Skale is a London-based B2B SaaS SEO agency that works exclusively with SaaS brands, focusing on turning organic search into a predictable, revenue-generating channel. Their team of strategists, technical SEOs, content specialists and link builders is built for funded SaaS companies that want SEO to become a core acquisition engine across multiple markets.

Core services:

Typical price range:

According to their Clutch profile, Skale works with a minimum project size of $5.000+ and an average hourly rate of $100-$149.

For B2B SaaS SEO retainers, this typically translates into monthly budgets in the €6.000-€20.000+ range, depending on the complexity of your site, the number of markets you target and how much content and link building you need each month.

6. Upraw Media

Upraw Media is a London- and Amsterdam-based paid media, analytics and CRO agency working exclusively with SaaS companies, usually at Series A and beyond. They describe themselves as a PPC and growth partner, layering experimentation and deep analytics on top of Google, LinkedIn and other paid channels to turn paid media into a reliable growth engine.

Core services:

Typical price range:

According to their Clutch profile, Upraw Media works with a minimum project size of $5.000 and an hourly rate of $100-$149, with a small senior team based in the Netherlands

For SaaS PPC and CRO retainers, this typically translates into monthly budgets in the €5.000–€12.000+ range, depending on media spend, number of channels and how deeply they’re involved in CRO and analytics.

7. Omnius

Omnius is a B2B SEO and content agency focused almost exclusively on SaaS, fintech and AI companies. They position themselves as an “organic growth partner”, building SEO and Generative Engine Optimization strategies that turn search visibility into pipeline and MRR. Their model is best suited to funded SaaS teams that already have some traction and want to double down on organic growth as a primary channel.

Core services:

Typical price range:

Omnius lists a minimum project size of $5.000+ and an hourly rate of $25–$49 on their directory profiles.

For B2B SEO and content retainers, this typically translates into monthly budgets in the €3.000-€10.000+ range, depending on content volume, number of markets and technical scope.

8. Kurve

Kurve is a London-based app growth and marketing agency working with VC-backed apps, tech startups and scale-ups in both B2B and consumer markets. They specialise in helping app founders grow market share through data-led user acquisition, App Store optimisation and creative performance campaigns, and also offer app development for teams that want one partner across build and growth.

Core services:

Typical price range:

Kurve’s Clutch profile lists a minimum project size of $10.000+ and an average hourly rate of $150-$199/hr, with projects ranging from under $10.000 to $50.000 depending on scope.

In practice, this places most app growth or performance marketing engagements in the mid four-figure to low five-figure EUR per month range for funded startups and scale-ups, depending on channels, geographies and the level of strategic involvement.

9. Nuoptima

Nuoptima is a UK-based SEO and AI-search agency working with funded startups and scale-ups across B2B, SaaS, ecommerce and other digital-first industries. They specialise in combining classic SEO with GEO and multi-language search to drive revenue from organic and AI-driven channels, making them a good fit once a company already has clear offers and wants search to become a core growth engine.

Core services:

Typical price range:

Nuoptima’s Clutch profile lists a minimum project size of $1.000+, an average hourly rate of $25-$49, and shows that the most common project size falls in the $10.000-$49.999 band.

Given that most SEO engagements run over several months, this typically points to monthly budgets in roughly the €4.000-€12.000+ range, depending on how many markets you target, how aggressive the growth targets are, and whether link building, GEO/AI-search and multi-language work are included.

10. Growth Gorilla

Growth Gorilla is a London-based fintech-first growth marketing agency working with well-funded fintech and financial services start-ups and scale-ups. They specialise in user acquisition and growth, blending data-driven paid media, influencer marketing and performance creative to drive new customers across channels like Google, TikTok, YouTube, Bing and Meta.

Core services:

Typical price range:

Third-party directories such as Clutch and DesignRush list Growth Gorilla with a minimum project size from around $1.000-$10.000 and an average hourly rate in the $100-$149 range.

Taken together (and considering their focus on well-funded fintech brands), this points to project and retainer budgets typically landing in the mid four-figure to low five-figure EUR per month range, depending on the mix of paid media, influencer activity and creative production involved.

11. Digital Litmus

Digital Litmus is a London-based B2B demand generation and HubSpot agency working mainly with growth-stage B2B tech and SaaS companies that want a structured, always-on pipeline engine rather than sporadic campaigns. They build full-funnel programmes that connect inbound, paid, RevOps and sales enablement for UK and international startups & SMEs.

Core services:

Typical price range:

According to their Clutch profile, most Digital Litmus projects fall in the $50.000-$100.000+ range, with an hourly rate of $100-$149 for B2B tech clients.

Given that their demand generation and RevOps programmes usually run over several months, this typically translates into monthly budgets in the €10.000-€25.000+ range, depending on whether you’re buying a full-funnel demand gen “machine”, a major HubSpot/RevOps build, or a combined programme.

12. Growth Division

Growth Division is a London-based growth marketing agency for startups, working mainly with VC-backed and accelerator-stage companies from early traction through Series A/B. They build flexible “growth squads” from a vetted network of experts, then run structured experiments to find and scale the channels that actually move revenue across B2B and B2C, product- and sales-led motions alike.

Core services:

Typical price range:

Directory profiles such as ITProfiles and SelectedFirms list Growth Division with a minimum project size of $10.000-$25.000 and an average hourly rate of $50-$99.

Given that they typically work in 90-day sprints and multi-month programs, this usually translates into monthly budgets in roughly the €6.000-€12.000+ range, depending on squad size, number of channels and how long you continue beyond the initial validation sprint.

13. DotControl

DotControl is a Rotterdam-based full-service digital agency working with established mid-market and enterprise brands that want to level up their digital presence and growth. They combine strategy, creative, development and performance marketing into multidisciplinary “growth teams”.

Core services:

Typical price range:

Their Clutch profile lists a minimum project size of $10.000+ and an hourly rate of $100-$149, with a team of 50-249 people and a portfolio of large brands.

Based on those benchmarks and the scale of their clients, most projects and retainers realistically sit in the €10.000-€25.000+ per month range during active build or growth phases, depending on how many disciplines are involved.

14. Velocity

Velocity is a London-based B2B marketing agency working with scale-ups and established B2B tech/SaaS companies that sell complex products and want brand, content and performance to work together as one system. They’re known for high-concept positioning, sharp storytelling and integrated campaigns for big-name B2B brands.

Core services:

Typical price range:

On their HubSpot Solutions Marketplace profile, Velocity Partners states that they work with budgets of $5.000+.

Given that they focus on multi-country B2B tech brands and run integrated strategy, creative and performance programmes, this usually means monthly engagements starting from roughly €5.000 and often running into the low-mid five figures per month for larger, multi-channel campaigns and projects.

15. Growthcurve

Growthcurve is a London- and New York-based growth marketing agency that works with startups, scale-ups and digital brands that want a full-funnel, experiment-driven growth team. They embed a tailored squad of growth marketers, creatives and analysts into the client’s business to run continuous testing across acquisition, activation, retention and revenue.

Core services:

Typical price range:

Growthcurve’s Clutch profile lists a minimum project size of $5.000+ and an average hourly rate of $150-$199, with most projects falling in the “under $10.000” band.

Spread across multi-month growth programmes, this typically translates into monthly budgets in roughly the €5.000-€15.000+ range, depending on the size of the embedded team, number of channels and whether you’re running a focused sprint or a broader, ongoing engagement.

Finding the right B2B marketing partner

There isn’t a single “best” B2B startup marketing partner in Europe, but there’s the one that fits your stage, your sales motion and your budget.

Some of the partners on this list are ideal if you need deep SEO or SaaS-focused demand gen, others make more sense when you want a fractional CMO or a brand-led agency.

The key is to be honest about what you actually need for 2026: senior direction, execution capacity, or a combination of both.

At InnoMaker Partners, we’re usually the best fit for early-stage B2B startups that want a fractional CMO-style partner with an embedded team, not just another vendor to brief and manage. If that sounds close to where you are, you can learn more about our service here.

And if you’d like to see whether we’re the right partner for your 2026 plans, feel free to reach out for a short intro call at info@innomakerpartners.com.

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