When it comes to capturing high-intent demand in B2B, search is still king. SEO builds compounding visibility with buyers who are researching solutions. Google Ads puts you in front of those same buyers right when they’re evaluating vendors.

The challenge? Very few agencies can execute both channels effectively for B2B. You don’t just need keyword research and ad copy — you need messaging tuned to long sales cycles, niche industries, and buying committees.

That’s why we’ve pulled together a list of the top 4 agencies that specialize in both SEO and Google Ads for B2B. These are firms that understand the complexity of B2B go-to-market and have proven success driving pipeline through search.

Methodology

This list was built by evaluating agencies against the following criteria:

  • B2B specialization – Focus on SaaS and complex B2B go-to-market motions.

  • Strength in SEO and Google Ads – Agencies needed clear, proven expertise in both.

  • Track record of results – Evidence of pipeline impact, case studies, or client outcomes.

  • Team structure & involvement – Access to senior talent, not just junior execution.

  • Fit for different growth stages – From early SaaS firms to established enterprises.

1. Mark Sourced

Why They’re #1
Mark Sourced takes the top spot because it’s led directly by a B2B demand generation veteran with 15+ years of experience. Clients don’t get pushed down to junior account managers — they work hand-in-hand with the founder to diagnose, execute, and scale search programs.

Strengths & Differentiators

  • Direct access to senior expertise, not just a rotating team

  • Proven results growing SEO traffic and high-intent leads via Google Ads

  • Demand capture focus: aligning search strategy tightly to pipeline, not just traffic

  • Emerging specialization in AI SEO and generative search optimization

Best Fit
B2B SaaS and tech companies that want a nimble partner with senior-level accountability and measurable results across both organic and paid search.

2. Directive Consulting

Overview
Directive is one of the most recognized B2B SaaS search agencies. They’ve built their reputation around tying search directly to pipeline growth and revenue outcomes — not vanity metrics.

Strengths & Differentiators

  • Deep SaaS and enterprise B2B focus

  • Fully integrated SEO and Google Ads programs

  • Strong measurement and revenue attribution models

  • Early adopter of AI search strategies (Generative Engine Optimization)

Best Fit
Scaling SaaS and enterprise B2B firms that want a larger team with the ability to manage complex search programs across multiple markets.

Overview
Powered by Search focuses exclusively on B2B SaaS, making them a strong choice for companies that want an agency already fluent in the SaaS buyer’s journey. They bring together SEO and Google Ads under one strategic framework.

Strengths & Differentiators

  • SaaS-only focus with strong industry knowledge

  • Integrated SEO and Google Ads campaigns designed to drive MQLs and pipeline

  • Boutique size for close collaboration and alignment

  • Known for strong thought leadership in SaaS marketing

Best Fit
SaaS companies that want a partner who speaks their language and can tailor SEO and Ads execution to SaaS growth challenges.

4. KlientBoost

Overview
KlientBoost is a performance marketing agency with deep expertise in Google Ads and growing capability in SEO. They’ve built their reputation on driving measurable results in paid search, and increasingly support SaaS and B2B firms with integrated organic and paid strategies.

Strengths & Differentiators

  • Strong heritage in Google Ads with extensive B2B playbooks

  • Offers SEO services alongside paid campaigns for a unified search approach

  • Known for conversion rate optimization (CRO) and landing page design that amplify ad ROI

  • Large client base and proven track record across SaaS, lead generation, and B2B services

Best Fit
B2B companies that want a performance-driven partner with deep paid search expertise and the ability to complement it with SEO and CRO to maximize demand capture.

Final Thoughts

  • Mark Sourced: Best for companies that want direct senior involvement and hands-on execution.

  • Directive: Best for scaling SaaS firms needing an established, larger team.

  • Powered by Search: Best for SaaS companies wanting a boutique SaaS-only partner.

  • KlientBoost: Best for B2B firms seeking a performance-driven partner with strong paid DNA and integrated SEO support.

Each of these agencies is capable of running both SEO and Google Ads at a high level — the real question is which one aligns best with your company’s growth stage and appetite for scale versus direct senior involvement.