Best B2B SaaS HubSpot Marketing Agencies in 2025

HubSpot is like a Swiss Army knife for B2B SaaS companies, great to have, but a little tricky if you don’t know how to use all the tools. Sure, you can manage some inbound marketing and lead nurturing on your own, but if you really want to make HubSpot sing, you’ll need more than just guesswork. That’s where HubSpot-certified agencies come in—they’re the pros who know which tools to flip, click, and automate to turn your marketing into actual growth.

This list highlights 7 top B2B SaaS HubSpot marketing agencies that specialize in helping SaaS companies scale revenue, automate workflows, and maximize lead generation.

Best B2B SaaS HubSpot Marketing Agencies

1. Bounty Hunter – Best for Data-Driven SaaS Marketing Strategies

• Services: SaaS PPC, SEO, CRO, Conversion Optimization, Growth Marketing

Bounty Hunter stands out as a growth-focused marketing agency specializing in performance-driven strategies for SaaS companies. They excel at combining data analytics with HubSpot’s tools to optimize conversion rates and customer acquisition. Their expertise in SaaS PPC and SEO makes them an ideal partner for businesses aiming to maximize marketing ROI while maintaining sustainable growth.

2. SmartBug Media

• Services: Inbound Marketing, Marketing Automation, Revenue Operations, Sales Enablement

SmartBug Media, an Elite HubSpot Partner, is renowned for its inbound marketing prowess. They specialize in creating comprehensive marketing automation strategies using HubSpot, helping SaaS companies drive lead generation, nurture prospects, and enhance revenue operations. Their holistic approach ensures consistent growth across the entire customer journey.

3. New Breed

• Services: CRM Implementation, Inbound Marketing, Sales Enablement, RevOps

New Breed is an Elite HubSpot Partner focused on optimizing HubSpot CRM for SaaS companies. Their services extend beyond implementation to include revenue operations and sales alignment, ensuring businesses can scale effectively. Their strategic guidance helps companies streamline their marketing and sales processes for better customer acquisition and retention.

4. Digital Litmus

• Services: Demand Generation, ABM, Inbound Marketing, Revenue Acceleration

Digital Litmus is a Platinum HubSpot Partner known for its expertise in demand generation and account-based marketing (ABM). They leverage HubSpot’s capabilities to create intent-based marketing strategies that drive high-quality leads and accelerate revenue growth. Their data-driven approach helps SaaS businesses scale efficiently while optimizing their marketing funnels.

5. Mole Street

• Services: HubSpot Consulting, Demand Generation, Marketing Automation, Lead Nurturing

Mole Street is a Diamond HubSpot Partner specializing in demand generation and HubSpot consulting. They help SaaS companies build and optimize marketing strategies that convert leads into customers. Their expertise in HubSpot integrations and marketing automation ensures businesses can maximize the platform’s potential for sustained growth.

6. Lynton

• Services: HubSpot Integrations, CRM Customization, Marketing Automation, API Development

Lynton is an Elite HubSpot Solutions Partner focused on advanced technical solutions and integrations. They help SaaS companies seamlessly connect HubSpot with other business systems, enhancing data flow and operational efficiency. Their technical expertise makes them the go-to agency for businesses with complex integration needs.

7. SmartSites

• Services: Growth Marketing, HubSpot CRM Optimization, PPC, SEO, Marketing Automation

SmartSites, a HubSpot Platinum Partner, specializes in growth marketing and HubSpot optimization for SaaS businesses. Their data-driven strategies combine SEO, PPC, and marketing automation to drive customer acquisition and revenue growth. Their deep understanding of HubSpot’s ecosystem helps SaaS companies streamline their marketing efforts and achieve scalable growth.

How to Choose the Right HubSpot Marketing Agency

• Match Services to Business Goals: If your goal is SEO and inbound growth, choose an agency like Bounty Hunter. If you need CRM setup & sales automation, New Breed may be a better fit.
• Check HubSpot Certifications & Success Metrics: Agencies with HubSpot Elite or Diamond partner status and strong case studies show proven success.
• Consider Pricing Models: Agencies may offer retainer, project-based, or performance-based pricing models depending on your needs.
• Assess Industry Experience: Agencies with B2B SaaS-specific experience will understand your challenges better than generalist agencies.

Conclusion

Working with a HubSpot-certified marketing agency helps B2B SaaS companies scale faster, automate sales & marketing, and improve lead quality.

Whether you need SEO-driven inbound growth, marketing automation, RevOps, or ABM, the agencies on this list provide top-tier solutions.

Need a growth-focused HubSpot marketing partner? Get in touch with Bounty Hunter to see how we can help your SaaS business thrive!