The right SEO partner depends on your growth stage, technical backlog and pipeline goals. I’ve compared seven agencies, with MADX Digital as my top pick, to help UK SaaS teams build a practical shortlist.
Series A teams need focus and manageable commitments. Enterprise buyers also need to assess technical complexity, approval processes and international requirements.
Generative engine optimisation (GEO) and answer-engine optimisation (AEO) address visibility in AI-generated answers, but neither replaces sound technical SEO.
Key Takeaways
- MADX Digital is my top pick for integrated SaaS SEO and AI search.
- Seer Interactive suits enterprise teams prioritising AI-search research.
- Omniscient Digital fits strategy-led organic growth.
- Skale focuses on SaaS content, links and qualified leads.
- Directive offers broader channel support;
- SimpleTiger packages SaaS SEO;
- iPullRank targets complex enterprise work.
How I tested
I assessed the agency information presented here, not delivery as a paying client. My criteria were SaaS focus, AI-search capability, technical depth, content and distribution, pipeline reporting, enterprise and international experience, pricing transparency and recent evidence.
Where agencies publish prices, I’ve included them in US dollars. UK buyers should confirm currency, VAT and included work before signing.
1. MADX Digital
Best for: SaaS teams seeking SEO and AI-search support together.
MADX Digital pros
- Combines SEO, AI search, content strategy, digital PR and link building.
- Works only with SaaS, from funded startups to established brands.
- Offers monthly retainers, a custom Enterprise plan and a one-off AI Search & SEO Growth Plan.
MADX Digital cons
- Needs internal alignment to get the best results.
- SaaS-only focus rules out ecommerce and other non-SaaS brands.
My experience with MADX Digital
MADX is where I’d start: SEO and AI search share the same remit. It re-benchmarks and re-plans every 90 days, and its Enterprise plan covers multiple markets, brands or products.
Teams comparing B2B SaaS SEO companies for enterprise can read MADX’s own category-by-category breakdown alongside this shortlist, since it weighs MADX against specialists such as iPullRank and Seer.
MADX Digital pricing
MADX publishes its retainer plans on its website, alongside a custom Enterprise plan and a one-off AI Search & SEO Growth Plan for teams not ready to commit. Compare deliverables and term length before judging value.
2. Seer Interactive
Best for: Enterprise buyers who want research-led AI-search measurement.
Seer Interactive pros
- Enterprise SEO and analytics experience.
- Dedicated GEO work and published AI-search research.
- Measures how accurately AI assistants describe brands.
Seer Interactive cons
- Not SaaS-only; enterprise scope may exceed lean teams’ needs.
- No public pricing.
My experience with Seer Interactive
I’d shortlist Seer when research and measurement matter most. Its focus on accurate AI descriptions is a useful starting point. Lean Series A teams may need a smaller scope.
Seer Interactive pricing
No public rates are provided here. Request a custom quote with research, implementation and reporting clearly separated.
3. Omniscient Digital
Best for: Teams needing an organic strategy before increasing content output.
Omniscient Digital pros
- Strategy-led SEO, content and links.
- Connects organic work to pipeline.
- B2B SaaS focus and published starting prices.
Omniscient Digital cons
- Less suited to execution-only content briefs.
- Starting prices exclude very lean budgets.
My experience with Omniscient Digital
I like the emphasis on defining organic growth before commissioning content. It suits teams willing to involve senior stakeholders. That strategy commitment matters as much as the monthly fee.
Omniscient Digital pricing
Reported starting figures are US$10,000 monthly for full-service work and US$15,000 for standalone strategy. Confirm scope and current pricing.
4. Skale
Best for: SaaS teams prioritising qualified leads through organic search.
Skale pros
- SaaS and tech specialist covering SEO, GEO, content and links.
- Focuses on qualified leads and recurring revenue.
Skale cons
- No published pricing; positions itself as an organic growth agency.
My experience with Skale
Skale’s commercial focus makes it relevant to teams judging SEO by qualified leads. I’d clarify how much expert input it needs from your staff before agreeing a publishing schedule.
Skale pricing
Custom pricing is reported. Ask how content volume, link building and internal support affect the scope.
5. Directive
Best for: Growth teams coordinating SEO with paid acquisition and conversion.
Directive pros
- Combines SEO, paid media and conversion optimisation.
- Reports performance in terms useful to leadership.
Directive cons
- Broad programmes may exceed an SEO-only brief.
- Custom proposals only, with no published package prices.
My experience with Directive
I’d consider Directive when one leader owns SEO, paid media and conversion. It also suits teams that judge stronger online visibility by leads and pipeline rather than rankings alone.
Its broader model is less useful when you only need a narrow search brief.
Directive pricing
Its 2026 guidance cites US $7,000 to US $60,000+ monthly for enterprise SEO. That’s directional guidance, not an agency quote.
6. SimpleTiger
Best for: SaaS teams that prefer a defined service package.
SimpleTiger pros
- SaaS SEO with answer-engine optimisation.
- Published pricing logic linked to revenue or funding.
SimpleTiger cons
- Percentage-based pricing can feel premium as you scale.
- Not designed for non-SaaS brands.
My experience with SimpleTiger
The packaged approach appeals to teams wanting a defined scope rather than a bespoke programme. I’d check exactly what changes between packages before comparing the fee.
SimpleTiger pricing
SimpleTiger’s SEO packages start at 5% of revenue or funding at the growth stage each package targets. Confirm the calculation period and included deliverables before using that percentage.
7. iPullRank
Best for: Large platforms tackling technical SEO and AI-search readiness.
iPullRank pros
- Enterprise technical SEO and content engineering.
- Tiered programmes for AI-search readiness.
iPullRank cons
- Elite programmes require substantial investment.
- Not SaaS-only.
My experience with iPullRank
I’d consider iPullRank for a large platform with complex technical search needs. Earlier-stage teams can start at its Emerging stage, though Elite is built for Fortune 500s and global businesses.
iPullRank pricing
Reported Elite AI Search investment starts at US$500,000+, with lower tiers available. Confirm current ranges and programme duration directly.
Conclusion
MADX Digital is my top pick for combining SaaS SEO, AI search and flexible engagement options.
For a Series A team, I’d start with the one-off Growth Plan or an entry retainer; for enterprise, I’d ask how a custom programme addresses technical complexity and internal approvals.
Seer is a runner-up for research-led enterprise work, while Omniscient suits strategy-first teams and Skale fits SaaS content and links.
Before choosing, give each shortlisted agency the same brief: goals, internal capacity, delivery responsibilities and success measures.
FAQ
What’s the difference between SEO and GEO for SaaS?
SEO targets rankings in search engines like Google. GEO targets being cited or recommended inside AI answers from tools such as ChatGPT, Perplexity and Google AI Overviews. Several agencies on this list offer both.
How much does a B2B SaaS SEO agency cost?
Published figures vary widely. Omniscient’s full-service engagements start at US$10,000 a month, and Directive puts typical enterprise SEO at US$7,000 to US$60,000+ a month. iPullRank’s Elite investment starts at US$500,000+.
Should a Series A team hire an enterprise SEO agency?
Usually not at first. Start with a scope that matches your current capacity, then expand as content and technical needs grow. Some agencies offer smaller entry points, such as iPullRank’s Emerging stage.
