B2B Digital Marketing Agency · Barcelona

B2B Digital Marketing Agency with pipeline attributed to revenue, not vanity.

Senior agency with 8 years in Barcelona. We combine SEO + Paid Media + Growth Marketing + server-side analytics for B2B clients with average deal size > €3K and sales cycle > 30 days. 150+ projects in SaaS, industrial, legal tech, health and fintech. Free 7-day diagnostic.

Free growth diagnostic → See method

150+

B2B clients 2018-2026

+175%

Average leads / 12 months

4×

Average attributed pipeline

3/mo

New slots · limited capacity

In short

What does a senior B2B digital marketing agency do?

A senior B2B digital marketing agency runs the 4 critical growth channels in parallel: SEO + GEO (organic traffic + AI citability), Paid Media (Google + Meta + LinkedIn), Growth Marketing (landings, funnels, CRO, retention) and Analytics (GA4 + BigQuery + server-side attribution). Everything wired to real CRM pipeline attribution, not vanity metrics.

Cronuts.digital has 8 years in Barcelona (Aribau 205 HQ). 15 people in-house. B2B clients with average deal size > €3K and sales cycle > 30 days in SaaS, industrial, legal tech, health, fintech. Retainer from €4,800/mo (1 channel), €8,500/mo (2-3 channels), €14,000/mo+ (full growth partner).

B2B companies with web development + CRO by cronuts

82% of B2B agencies report "average positions" without wiring to revenue. Without server-side attribution to pipeline, it's vanity marketing.

Request a quote →

What we do · digital marketing agency

Four pillars. One owner. Real attribution.

We are not a generalist "360 agency". We run 4 integrated pillars (SEO + Paid + Growth + Analytics) with a dedicated Product Manager per client. Maximum 3 new clients per month to keep senior quality.

Pillar 1 · SEO + GEO

Organic traffic + AI citability

Technical SEO (Core Web Vitals, schema), E-E-A-T content, link building DR 50+, GEO for ChatGPT/Perplexity/Gemini. Pillar + cluster architecture. Server-side attribution to pipeline.

From €1,800/mo

Pillar 2 · Paid Media

Google + Meta + LinkedIn

Google Ads (Search + PMax), Meta Ads, LinkedIn Ads. Senior media buyer + creative producer. 3+ A/B tests per month. Conversions API + server-side tracking. Signed weekly cadence.

From €2,800/mo

Pillar 3 · Growth

Funnels, landings, CRO, retention

AARRR framework: Acquisition, Activation, Retention, Referral, Revenue. CRO landings, email automation, loyalty programs, referral mechanics. GrowthBook A/B on ICE-prioritized hypotheses.

From €3,800/mo

Pillar 4 · Analytics

GA4 + BigQuery + server-side

GA4 + GTM server + BigQuery + Looker stack. Multi-touch attribution to real pipeline. CMO-ready dashboards. Optional AI reporting with GPT-5/Claude for weekly executive insights.

From €3,200/mo

Pillar 5 · AI products

AI content ops + lead scoring + RAG

Our own AI products for growth: content ops (40% writing time), automated BANT lead scoring, private RAG on your knowledge base, AI executive reporting. 4-8 week implementation.

From €8,500

Pillar 6 · Growth Partner

Dedicated full-stack owner

"Growth partner" format: one PM + team operating as an external fractional CMO. Daily standups, quarterly roadmap, weekly reporting. For companies at €1-10M without an internal CMO.

From €14K/mo

Operating stack · 8 years battle-tested

Full technical stack. Open source first. Zero lock-in.

What sets cronuts apart: open source stack, full client access to their accounts and data, executive documentation, complete SOPs. If you end the relationship, you keep everything running without depending on us.

SEO · Ahrefs + SE Ranking + Screaming Frog + Sitebulb + GSC
Paid · Google Ads + Meta Ads Manager + LinkedIn Campaign Manager
Growth · GrowthBook self-hosted + Klaviyo/ActiveCampaign
Analytics · GA4 + GTM server (Stape) + BigQuery + Looker Studio
Data · Fivetran/Airbyte + optional dbt + custom Python pipelines
AI products · Claude Opus 4.7 + GPT-5 + Perplexity API + custom RAG
Web · custom WordPress (no Elementor) + Gutenberg + ACF Pro
CRM · HubSpot + Pipedrive + Holded depending on client stack

6 engagement formats

01

Free diagnostic

7 days · top 10 ICE levers · no commitment

Lead magnet
02

One-shot audit

2-3 weeks · executive document + roadmap

€4,800-8,500
03

One-shot project

8-14 weeks · web, redesign, migration, launch

From €8K
04

Single-channel retainer

SEO or Paid or Growth or Analytics · 6-month min

From €1,800/mo
05

Multi-channel retainer

2-3 integrated pillars · dedicated PM · 12-month min

From €8,500/mo
06

Growth Partner

External fractional CMO · dedicated team · 12+ months

From €14K/mo
07

Training + consulting

Internal team workshops · SOPs · 2 days

From €3,200
08

AI product development

Content ops · lead scoring · RAG · AI reporting

From €8,500

See retainer plans · from €1,800/mo →

3 senior slots/month

PM + founders in weekly review. Average ticket €4-15K/mo. 6-month minimum. If your company bills < €500K/year or has no CRM, we recommend one-off consulting instead of retainer.

How we work

Three phases. Diagnostic, onboarding, retainer.

Free 7-day diagnostic. Onboarding + full audit in 2-4 weeks. Monthly retainer with dedicated PM + executive reporting. Quarterly retrospective with stakeholders. Quarterly break with 30-day notice.

Phase 01 · Diagnostic

Free 7 days · no commitment

We review your current stack: GSC + GA4 + HubSpot/CRM + existing ads. Executive document with top 10 ICE-prioritized levers + impact estimate + investment range. If there's no opportunity, we tell you.

7 daysFree

Phase 02 · Onboarding

Audit + signed plan

Deep 360-point audit (SEO + Paid + Growth + Analytics). Stakeholder workshops. Critical KPIs signed off. 12-month roadmap signed off. Monthly test plan signed off. Communication + SLAs set.

Week 1–4Signed plan

Phase 03 · Active retainer

Cadence + reporting + iteration

Signed cadence: daily Slack, weekly reports, monthly executive, quarterly retrospective. 24/7 Looker dashboard access. Dedicated PM + squad by scope. Quarterly renewal with stakeholders.

Month 2+Monthly retainer

Real cases · attributed pipeline

Digital marketing that generates measurable pipeline.

Eninter case — multi-channel B2B growth marketing

B2B Industrial · Multi-channel growth · 18 mo

+175 % B2B leads

Eninter: SEO + Paid + CRO + HubSpot attribution, 18 mo. +175% qualified B2B leads.

SEO Paid CRO HubSpot

View case →

JAX case — omnichannel digital marketing agency USA

B2B Industrial USA · 24 mo · omnichannel

4,600 MQLs

JAX USA: omnichannel paid + SEO + analytics, 24 mo. 572K sessions + 4,600 MQLs.

Paid USA SEO Analytics

View case →

Grup Olivé case — local restaurant digital marketing

Restaurant · Local + web + ops · 12 mo

350K Google clicks

Grup Olivé: local SEO + custom web + GMB + ops. 350K Google clicks + 42% reservations.

Local SEO GMB Custom web

View case →

View all cases 32 cases published

DM agency truths 2026

Six things "360" agencies don't tell you.

"360" agencies are mediocre generalists. Senior in 2-3 pillars > junior in 10.

Reporting "average positions" without pipeline attribution = vanity marketing.

iOS 17 hides 46% of client-side conversions. Server-side is mandatory in 2026.

An agency without read-write access to your accounts = opaque, not transparent. Red flag.

Two weeks of silence with "we're optimizing" = an agency doing nothing.

Without a dedicated Product Manager, you're client #40 in rotation. Seniority > scale.

Verified reviews · CMOs and CEOs

DM agency CEOs pick after trying 3 big ones.

★★★★★ 4.9 / 5 · 34+ verified reviews

See all on Google →

Frequently asked questions

What CEOs and CMOs ask us before signing.

How much does working with cronuts cost?

Ranges: single-channel retainer €1,800-4,800/mo (SEO, Paid, Growth or Analytics individually). Multi-channel retainer €8,500-14,000/mo (2-3 integrated pillars with dedicated PM). Growth Partner €14,000-28,000/mo (external fractional CMO, dedicated team). 6-month retainer minimum, quarterly renewable.

Which company size is a good fit?

B2B companies between €500K and €100M with sales cycle > 30 days and average deal size > €3K. Common sectors: SaaS, industrial, legal tech, health, fintech, education, premium consulting. Premium ecommerce > €2M online. Requirement: connected CRM (HubSpot, Pipedrive, Salesforce, Holded).

What sets you apart from other agencies?

(1) Real seniority: a senior runs every account, not a junior AM. (2) Server-side attribution: decisions based on real pipeline, not vanity. (3) Signed cadence: documented communication SLAs. (4) Zero lock-in: open source stack, your accesses, complete docs. (5) Max 3 new clients per month: capped capacity, quality maintained.

Can I hire you for a single channel?

Yes. A single-channel retainer (SEO or Paid or Growth or Analytics) is valid. Sweet spot: companies with other channels already run in-house or by another agency. Multi-channel retainer offers compounding effect (SEO + Paid amplify each other), but a standalone channel works.

Do I need an integrated CRM to work with you?

Yes, it's a requirement. Without a CRM there is no pipeline attribution, and without pipeline we can't report seriously. Accepted: HubSpot, Pipedrive, Salesforce, Holded, Zoho. If you don't have a CRM, we implement it as part of onboarding (see CRM integration).

How long until results show up?

Week 1-4: onboarding + quick wins (audit, setup, first fixes). Month 2-3: first measurable improvements (+CTR, -CAC, +conversion). Month 4-6: 2-3× attributed pipeline vs baseline. Month 9-12: head terms + improved LTV + data-driven culture installed. Real growth is a 12+ month investment.

Do you offer guarantees?

Process guarantees: signed communication SLA, documented minimum cadence (3+ A/B tests per month, weekly reports, monthly executive), full access to dashboards + docs. Outcome guarantees per pillar: SEO 6-month organic guarantee, CRO win-rate ≥ 25%, agreed Paid ROAS target. If not met: we extend the retainer free for one month.

Are you Barcelona only or also Madrid/remote?

HQ in Barcelona (Aribau 205). 15 people in-house. We work remotely with clients across Spain + Europe + UK + USA. In-person kick-offs in Barcelona or Madrid optional. Daily communication via Slack (24h async SLA) + weekly calls.

Growth diagnostic · free · 7 days

Free growth diagnostic, 7 days.

We review your GSC + GA4 + CRM + ads. Top 10 ICE-prioritized levers + impact estimate + investment range. If there's no real opportunity, we tell you before you sign.

Max 3 slots/month · dedicated senior PM · zero rotation.