The whole marketing agency.
In one person.
GrowthHub is an external German Managing Director running 172 always-on agents across acquisition, activation, revenue, retention, and referral. One operator, one dashboard, 3–4 experiments a week — digital and old-school.
Operator
1
One external MD per market
Always-on agents
172
Paid, SEO, CRO, email, competitive, referral
Weekly experiments
3–4
At least one old-school (print, event, direct mail)
Floor
€10K / mo
90-day pilot · 30-day exit
Why a single operator beats an agency
Three reasons you'll reply to your own team again.
Agency output, one throat to choke.
Most agencies staff your account with a rotating junior pool. You get a senior operator running a platform of 172 agents. Decisions are made in hours, not weekly status meetings.
AARRR, not channel silos.
Traditional agencies sell you a Google Ads retainer, then a social retainer, then SEO. We run Acquisition, Activation, Revenue, Retention, Referral as one system. Experiments compound.
Digital and old-school — tracked together.
Especially for Germany. Print, direct mail, trade fairs, Google Business Profile. German buyers still decide offline. We run the paper-and-ink funnel next to the digital one in the same dashboard.
The roster
172 always-on agents,
organised by AARRR.
One operator decides what runs each week. The agents do the work — paid, SEO, outbound, content, intel, CRM, retention, referral. Every slug below is a real, deployable agent on the platform.
Acquisition
120 agentsBring buyers to the door — paid, SEO, outbound, signal-based outreach, competitive intel.
/ads-google/ads-meta/ads-linkedin/ads-microsoft/ads-tiktok/ad-spend-allocator/ad-campaign-analyzer/search-ad-keyword-architect/serp-feature-sniper/competitor-ad-teardown/seo-domain-analyzer/seo-opportunity-finder/google-ad-scraper/meta-ad-scraper/trending-ad-hook-spotter/ad-angle-miner/ad-creative-intelligence/ads/ads-apple/ads-audit/ads-budget/ads-competitor/ads-create/ads-creative/ads-dna/ads-generate/ads-photoshoot/ads-plan/ads-youtube/apollo-lead-finder/battlecard-generator/blog-scraper/brainstorming-partner/client-onboarding/client-package-local/client-package-notion/client-packet-engine/company-contact-finder/company-current-gtm-analysis/competitive-pricing-intel/competitive-strategy-tracker/competitor-content-tracker/competitor-intel/competitor-monitoring-system/competitor-post-engagers/conference-speaker-scraper/contact-cache/content-brief-factory/crustdata-supabase/event-prospecting-pipeline/feature-launch-playbook/find-influencers/funding-signal-monitor/funding-signal-outreach/gcalcli-calendar/get-qualified-leads-from-luma/google-search-ads-builder/hacker-news-scraper/hiring-signal-outreach/icp-identification/icp-persona-builder/industry-scanner/job-posting-intent/launch-positioning-builder/leadership-change-outreach/linkedin-commenter-extractor/linkedin-job-scraper/linkedin-post-research/linkedin-profile-post-scraper/luma-event-attendees/meeting-brief/messaging-ab-tester/meta-ads-campaign-builder/news-signal-outreach/outbound-prospecting-engine/pain-language-engagers/pipeline-review/product-hunt-scraper/programmatic-seo-planner/programmatic-seo-spy/reddit-scraper/sales-call-prep/sales-coaching/sales-performance-review/seo/seo-audit/seo-competitor-pages/seo-content-audit/seo-content-engine/seo-geo/seo-hreflang/seo-plan/seo-programmatic/seo-sitemap/seo-technical/seo-traffic-analyzer/signal-detection-pipeline/signal-scanner/site-content-catalog/tam-builder/tech-stack-teardown/topical-authority-mapper/twitter-scraper/visual-brand-extractor/web-archive-scraper/youtube-apify-transcript/youtube-watcher/audit-budget/audit-compliance/audit-creative/audit-google/audit-meta/audit-tracking/copy-writer/creative-strategist/format-adapter/seo-geo/seo-sitemap/seo-technical/visual-designerActivation
24 agentsTurn visitors into qualified leads — landing-page audits, ICP fit, message-match, voice.
/icp-website-review/icp-website-audit/ad-to-landing-page-auditor/ads-landing/seo-performance/brand-voice-extractor/humanizer/inbound-lead-qualification/inbound-lead-enrichment/content-repurposer/campaign-brief-generator/content-asset-creator/create-html-slides/create-workflow-diagram/inbound-lead-triage/lead-qualification/paid-channel-prioritizer/seo-content/seo-images/seo-page/seo-schema/seo-content/seo-schema/seo-visualRetention
15 agentsKeep them, grow them — churn detection, win-back, sequences, reviews, voice-of-customer.
/churn-risk-detector/expansion-signal-spotter/customer-win-back-sequencer/voice-of-customer-synthesizer/qbr-deck-builder/newsletter-monitor/newsletter-signal-scanner/email-drafting/sequence-performance/setup-outreach-campaign/cold-email-outreach/agentmail/disqualification-handling/early-access-email-sequence/help-center-article-generatorReferral
13 agentsTurn customers into amplifiers — KOLs, champions, case studies, sponsorships.
/kol-discovery/kol-engager-icp/kol-content-monitor/champion-tracker/champion-move-outreach/customer-story-builder/linkedin-outreach/linkedin-influencer-discovery/review-intelligence-digest/review-scraper/newsletter-sponsorship-finder/sponsored-newsletter-finder/create-html-carouselRevenue (the fifth AARRR stage) shares agents with Retention — same motion in B2B, so we don't double-count.
Live engagement
What a first audit finds.
One Benelux merchant expanding into Germany, €3M / year run-rate. Two weeks into the engagement, the dashboard shows why their growth was flat.
€247K
Revenue / 28 days
3.06×
Meta Ads ROAS
15.42×
Brand Search ROAS (starved)
2.8×
Desktop-vs-mobile value gap
Attribution was broken.
€82K in GA4 'Organic Social' was mis-tagged paid Meta. True paid share of revenue was ~70%, not the 22% the ads report implied.
Brand Search was starved at €25/day.
15.42× ROAS with a €25/day cap. Single highest-leverage move in the whole account — uncap and defend against competitors.
A full persona was unclaimed.
Sector-specific buyers (healthcare procurement in this case) were ignored by every competitor. Greenfield takeover in 90 days.
How it works
Four steps. Week one to live.
Step 1
Book a call.
30 minutes with Tom. We look at your site, your GA4, your ad accounts live. No deck.
Step 2
Fit check.
If you're not a fit we'll tell you in the call. If you are, we send a 90-day pilot SoW.
Step 3
Dashboard goes live.
Your AARRR workspace at app.growthhub.io within a week. GA4, GSC, ad accounts, reviews, social all wired in.
Step 4
3–4 experiments / week.
From day one. You see the same dashboard we see. Weekly call, monthly exec report.
Pricing
Engagements start at €10,000 / month.
That's one-third to one-fifth of a traditional agency retainer for the same scope, and roughly what one in-house growth hire costs — without hiring. 90-day pilot, 30-day exit clause.
Not for everyone. We work with companies doing €1M+ annual revenue expanding into Germany, Benelux, or DACH. If that isn't you, a discovery call will tell us both quickly.
Ready to see the dashboard?
Book 30 minutes with Tom. If we're not a fit, you'll leave with a free audit punch list anyway.