Fuelius is a UK-based digital growth marketing agency with a strong focus on B2B SaaS and technology sectors. With over 25 years of experience, the agency has evolved from its origins as Prodo into a brand that delivers end-to-end customer journey solutions, including CRM enablement, inbound marketing, web development, and advanced automation.
Their in-house team of 25+ specialists works with scaling companies to optimize revenue and remove friction points across the buyer journey. Fuelius is recognized as both an Umbraco Gold Partner and a HubSpot Elite Partner, putting them among the top 1% of HubSpot agencies globally.
Pros
- Deep CRM and Marketing Automation Expertise - Fuelius excels in CRM implementation, onboarding, and migration—especially with HubSpot and Umbraco. Their status as a HubSpot Elite Partner and Umbraco Gold Partner confirms their technical depth and ability to handle complex integrations and bespoke solutions for SaaS businesses.
- End-to-End Customer Journey Focus - Unlike many agencies that silo their services, Fuelius takes a holistic approach. They audit, map, and consult on the entire customer lifecycle, aligning sales, marketing, and service teams with clever automation, which is critical for SaaS companies looking to scale efficiently.
- Strong Track Record with B2B SaaS and Tech - Fuelius has a proven history of working with scaling B2B SaaS companies, offering tailored solutions such as inbound marketing strategy, bespoke HubSpot CMS builds, and advanced integrations. Their longevity and client roster demonstrate reliability and adaptability in a competitive space.
Cons
- Niche Platform Focus - While their expertise in HubSpot and Umbraco is a strength, companies looking for support on other platforms (e.g., Marketo, Pardot, or custom stacks) may find Fuelius less suitable.
- UK-Centric Team - Despite serving clients globally, their core team and operations are based in the UK. This could pose challenges for North American or APAC clients needing real-time support or localized strategy.
- Potentially Higher Cost for Smaller SaaS Firms - With a 25+ person team and a focus on scaling companies, Fuelius may be better suited to mid-market and enterprise SaaS clients. Startups or early-stage businesses may find their services priced above entry-level agency alternatives.
Final Thoughts
Fuelius makes my list of recommended agencies in the B2B SaaS space because they combine technical excellence with a strategic, customer-centric approach. Their dual specialism in HubSpot and Umbraco, paired with a clear focus on aligning sales, marketing, and service teams, sets them apart for SaaS and technology companies looking for genuine growth partners rather than just service providers.
Their experience, certifications, and impressive case studies show they can deliver the kind of integrated, scalable solutions that ambitious SaaS brands need. If you’re a scaling B2B SaaS company seeking a partner to optimize your customer journey and tech stack, Fuelius should absolutely be on your shortlist.
