Fuelius

Customer profile
Early stage startups (seed-Series A)
Growth stage startups (Series B-C)
Mid-Market / Enterprise
Large public companies
label
B2B
Sourcing (VC, Growth Equity)
Real estate and construction
Insurance

Overview

Fuelius is the only HubSpot partner (and, we’re an Elite partner..) in the UK to hold Clay Enterprise Partner status. With over 27 years of engineering expertise, we specialize in building data-driven GTM systems that power outbound at scale.

We don’t just run email campaigns—we engineer full-scale outbound motions. Our in-house GTM Engineering team combines outbound architects, data specialists, and CRM strategists to design, automate, and optimise high-converting outbound workflows.

We leverage Clay to build GTM motions with real-time data enrichment, trigger-based prospecting, and multi-channel outreach across email, LinkedIn, WhatsApp, and SMS. Our strategic approach has helped businesses engage enterprise buyers and scale outbound with precision.

Fuelius is trusted by Munich Re, Emirates, Financial Conduct Authority, Darktrace, and SmartSearch, alongside high-growth startups and B2B enterprises in SaaS, Manufacturing, and Professional Services.

Support docs & guides

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Clay University

Master Clay in a few core lessons. Uplevel your data enrichment, craft better outbound messages, and book more meetings.

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Go to market blog

Our best content on growing your GTM motion, from outbound sales automation to AI lead generation.

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Integrations

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Templates

Power your outbound campaigns with our best templates.

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Clay Experts

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Clay's Chrome extension

Clay’s Chrome Extension makes it wicked easy to find leads almost anywhere on the internet

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What our customers say about us...

Fuelius
Product expert
Enterprise partner
Educator/coach
location
UK
pricing
$8K - $10K
language
English
expertise
CRM Enrichment - Hubspot
Clay + HubSpot
Coaching & playbooks
Database integrations
GTM systems
HTTP API (custom integrations)
Inbound lead flows
Lead sourcing
Outbound campaigns
Signals & triggers
Strategy consulting