TL;DR: Key Takeaway
verdict
Rock The Rankings ranks first for post-PMF SaaS startups from seed to Series A that want SEO and AI search run as one program and measured in demos. MADX Digital is the strongest alternative, with published SEO and AI search tiers from $5,500/mo. Match the agency to your stage first, because the right partner at pre-seed is the wrong one at Series A.
Price starts at
From $4,050/mo · published tiers
Best for
- SEO
- Generative Engine Optimization (GEO)
- Content strategy and production
- Link building and digital PR
- Technical SEO
- SEO consulting
- One program across Google and the answer engines, not an SEO retainer with GEO bolted on
- A three-scenario forecast published before you sign, and graded monthly after
- Two-signal attribution that still works when assistants strip the referrer
- You work with the founder from first call through monthly report
- Search only, SaaS only. If you want one vendor for paid, lifecycle, social, and brand, we are not it.
- There is a 90-day initial commitment, because this compounds.
Price starts at
From $5,500/mo · published tiers
Best for
- Generative Engine Optimization (ChatGPT, Perplexity, Gemini, AI Overviews)
- Technical SEO
- SaaS content strategy and articles
- Link building and AI-cited guide placements
- Digital PR
- AI search prompt and keyword tracking
- One-off AI Search and SEO Growth Plan ($4,500)
- Published USD pricing tiers with listed deliverables, placements, and AI models tracked
- Built for SaaS and tech, with 50+ SaaS brands and 20+ published case studies
- AI search tracking and placements are core to every tier, not an add-on
- 4.9/5.0 on Clutch with recognizable SaaS clients such as VEED and Postalytics
- Entry tier is $5,500 a month and leaves out articles, so full content work starts at $9,500 a month
- 3-month minimum on rolling plans, with the best rates tied to 12-month terms
- Heavy reliance on paid placements and link buying, which some early teams may not want
Price starts at
From $5,000/project
Best for
- SaaS SEO strategy
- AI search optimization (AEO)
- Reddit marketing
- Third-party listicle and AI brand mentions
- Content creation
- Link building
- YouTube marketing
- SaaS-only focus with 80+ B2B SaaS clients claimed, including Qwilr, Lyssna, and Softr
- Covers Google, AI search, and Reddit in one engagement instead of three vendors
- Perfect 5.0 Clutch score across verified SaaS reviews
- Named senior leads and quarterly business reviews, with no junior handoff promised
- Young agency with no published retainer pricing or contract terms, so budget and commitment take a call
- Small verified review base on Clutch compared with older SaaS SEO shops
- Reddit and community work carries brand risk if moderation rules are not handled carefully
Price starts at
From $3,000/mo
Best for
- SaaS SEO (technical, on-page, content)
- GEO and AEO for AI search visibility
- AI-citation link building
- SaaS content marketing
- SEO audits
- GA4 consulting
- Four-Week SEO and AI Growth Sprint
- Low entry price for a SaaS-focused agency, with a four-week sprint and no long-term contract required
- Tracks buyer prompts across five AI engines and reports AI share of voice monthly
- 5.0/5.0 on Clutch across 39 reviews, a deep review base for a small agency
- Founder reviews every project quarterly
- Link placements billed separately, so total cost is set only after a diagnostic call
- Not a fit for pre-product startups, by the agency's own terms
- Small team of about 10, and much of the client base is IT services firms rather than SaaS products
Price starts at
From $2,250/mo · published tiers
Best for
- SaaS content strategy
- Content writing
- LLM optimization (AI search)
- Link building
- Listicle and digital PR placements
- SEO and content audits
- Published tiers for content, combined SEO plus AI visibility, and per-link pricing
- Content Execution plan runs month-to-month with no minimum term
- Link building charged only for links that go live, with a 6-month replacement guarantee
- Long SaaS client list including airfocus, Expandi, and DataForSEO
- Content and link focus, with limited technical SEO and no CMS publishing when custom code is needed
- Strategy, Research, and SEO plus AI visibility plans carry a 3-month minimum
- Link volume is not guaranteed, and link budgets have a $1,500 monthly minimum
Price starts at
From $4,000/mo
Best for
- SaaS SEO strategy
- AI search (AEO and Generative Engine Optimization)
- Content marketing
- Link building and digital PR
- Technical SEO
- Paid search and paid social
- Webflow marketing sites
- Works only with SaaS companies and has dedicated programs for seed and Series A stages
- Month-to-month SEO engagements with no long-term contract
- AI search citation tracking across ChatGPT, Perplexity, and Google AI Overviews is built into SEO packages
- Deep Clutch record, with 34 reviews averaging 4.9
- Primary focus is mid-market SaaS, and average retainers run about $8,000 a month, above many pre-seed budgets
- Package pricing is tied to a share of revenue or funding, so exact cost takes a call
- A few Clutch reviewers noted goals and priorities were not always set clearly at the start
Price starts at
From $3,000/mo · published tiers
Best for
- SaaS SEO content (revenue pages and articles)
- Earned links and brand mentions
- Answer Engine Optimization
- Generative Engine Optimization
- Technical SEO and AI search fixes
- Monthly AI visibility reporting
- Published tiers at $3,000, $5,000, and $7,500 a month, plus custom scopes from $2,000
- Fixed monthly counts of pages and earned links, with shortfalls rolling over
- Monthly AI visibility report across ChatGPT, Perplexity, Gemini, and AI Overviews, benchmarked against three competitors
- No setup fees, onboarding included
- Small 2 to 9 person team that does not implement technical fixes itself
- 6 or 12 month initial term before month-to-month
- Limited Clutch track record, with a single review so far
Price starts at
From $5,000/project
Best for
- SaaS SEO strategy and execution
- Generative Engine Optimization
- AI brand mentions
- Content production
- Link building and outreach
- Website migrations
- Works only with tech and SaaS brands, founded by former in-house SaaS growth leads
- Deep Clutch record: 4.9 across 20 reviews from SaaS buyers like Maze and Wealthsimple
- AI search is a lead offer, including AI brand mention work
- Dedicated team per client covering strategy, content, technical, and off-page
- No published pricing, and full retainers run above the Clutch minimum, so early budgets may not stretch
- Contract length and exit terms are not published
- Built for companies with an established domain and an internal marketing owner, less so for founders running marketing alone
Price starts at
On request
Best for
- Google and AI search strategy
- Human-written content
- AI-assisted content production
- Digital PR
- Reddit marketing
- AI visibility tracking and reporting
- Works only with B2B SaaS on Google and AI search, with 60+ SaaS clients
- In-house AI visibility tool tracks citations across ChatGPT, Gemini, and Perplexity
- No long-term contracts and no minimum commitment
- Managing Director stays involved on every account
- Requires product-market fit and a serious content budget, so pre-PMF startups are out of scope
- No published pricing, so budget fit takes a call
- Content and AI search focus, with conversion optimization outside its core, as one Clutch reviewer noted
Price starts at
From $2,500/mo · published tiers
Best for
- SEO content production
- AI search (Generative Engine Optimization)
- Technical SEO
- Programmatic SEO
- Content refreshes
- Backlinks (add-on)
- GA4 and Search Console setup
- Published tiers with page counts per month, so scope is clear before a call
- Free sample page before any payment
- Pages built to be cited in ChatGPT, Perplexity, and Google AI answers
- Large library of public SaaS case studies
- Link building and PR are excluded from base plans and cost extra
- 3-month minimum, paid upfront, on every plan
- Starter and Engine run on chat and a monthly report, with strategist calls reserved for the $9,500+ Managed plan or billed at $400 per call
Price starts at
From $2,500/mo
Best for
- Fractional CMO (CMO-as-a-Service)
- CMO coaching
- Content and SEO
- Account-based marketing
- Paid media
- HubSpot and RevOps
- Branding and web development
- Replaces a whole marketing function: strategy, content, paid, ABM, and RevOps
- Published entry pricing for coaching and the full-service team
- Pay-for-performance option ties part of the fee to quarterly OKRs
- Tiered models for each stage, from self-serve T2D3 playbooks to full service
- Full-service team starts at $50,000+ per month and targets $5M+ ARR, out of reach for most Series A budgets
- SEO is one channel among many, with no stated AI search offer
- No Clutch reviews to check delivery quality independently
The board
All agencies ranked. Jump to any entry.
Wighted criteria, pipeline impact first. Filter by how each agency is built.
Editorial scores by the Rock The Rankings team · Review counts from Clutch.co · Updated quarterly
How we scored
The criteria, weighted for pipeline.
We reviewed public case studies, client rosters, pricing pages, and third-party reviews. One question outranks the rest: does the agency connect search activity to pipeline you can audit, or does it report traffic and hope you are impressed.
The breakdown
Every agency; the full breakdown:
Read the criteria, check the results, and judge for yourself. Every other entry gets the same fields and an honest tradeoff line.
Rock The Rankings
MADX Digital
MADX Digital is a London agency that sells SEO and AI search as one retainer to SaaS and tech companies, combining technical SEO, content, link placements, and digital PR. Its published tiers run from $5,500 to $14,500 a month, with an Enterprise tier above $20,000, and each tier spells out the AI models tracked and monthly output. It also sells a $4,500 one-off growth plan that a team keeps whether or not it hires MADX to execute. The pricing suits funded seed and Series A companies more than pre-seed teams.
Scalerrs
Scalerrs is a remote SaaS SEO agency, founded by Jules Davies, that combines classic SEO with AI search visibility and Reddit marketing. It works only with B2B SaaS and tech companies across fintech, martech, legal tech, and edtech, and claims more than 80 SaaS clients. For a Series A team that wants one partner to cover Google rankings, citations in ChatGPT and Perplexity, and community presence, it is a single plan instead of several vendors.
GrowPad
GrowPad is a founder-led SEO agency registered in Alicante, Spain, with team roots in Dnipro, Ukraine, that focuses on SaaS and B2B tech companies. It runs SaaS SEO, AI search visibility work, and link building, offered as an ongoing partnership or a four-week sprint. Retainers start at $3,000 a month with link placements budgeted separately. It targets teams of one to five marketers that already have product-market fit, which makes it a fit for seed and Series A SaaS rather than pre-product startups.
Quoleady
Quoleady is a SaaS content marketing and AI search agency that plans, writes, and promotes content for B2B software companies. Content plans start at $2,250 per month for 15,000 words, and the combined SEO plus AI visibility retainer runs $3,500 to $7,000 per month with a link budget included. Its LLM optimization work covers prompt research, listicle placements, and AI visibility reporting, which suits seed and Series A teams building their first content engine. Clients include airfocus, Expandi, and DataForSEO.
SimpleTiger
SimpleTiger is a Sarasota, Florida agency that has focused on SEO for SaaS companies for well over a decade, now bundling AI search visibility into its SEO packages. It runs separate programs for seed-funded startups building their SEO foundation and Series A companies scaling organic growth, and adds paid media, content, and link building when needed. Engagements are month-to-month, with SEO retainers starting at $4,000 a month.
The Rank Masters
The Rank Masters is a small B2B SaaS SEO and AI search agency that sells fixed monthly packages of revenue pages, earned links, and AI visibility reporting at published prices. Its Starter tier is pitched at teams testing whether search and AI answers can drive pipeline, which fits seed-stage startups watching budget. Paid ads, web development, and in-house technical implementation are outside its scope.
Skale
Skale is a London SEO agency, co-founded by Jake Stainer and Italo Viale, that works only with tech and SaaS brands and now positions itself as AI search first. It runs SEO strategy, content, link building, and migrations alongside AI search and AI brand mention work. It suits Series A teams that already have product-market fit and want a SaaS-native partner focused on pipeline rather than traffic.
Minuttia
Minuttia is a remote, B2B SaaS-only agency that runs content-led SEO and AI search programs, pairing human-written content with digital PR, Reddit marketing, and its own AI visibility tracking. It treats answer engine optimization as part of every brief rather than an add-on. It suits seed and Series A SaaS companies with product-market fit that want content to drive rankings and AI citations without a long-term contract.
Embarque
Embarque is an agentic SEO and AI search agency where a senior strategist directs AI systems to research, write, and fix pages at volume. Published plans run from Starter at $2,500 per month (about 15 pages in one subfolder) to Engine at $4,995 per month (about 40 pages across two subfolders), with a custom Managed tier from $9,500. It suits seed and Series A SaaS teams that want output volume and AI citations more than hands-on strategy meetings. Clients shown include UXCam, MentorCruise, and Instatus.
Kalungi
Kalungi is a B2B SaaS marketing agency near Seattle that provides a fractional CMO and full execution team covering positioning, content and SEO, paid media, ABM, and HubSpot RevOps. It sells three models: T2D3 playbooks for pre-PMF teams, the Syntropy done-with-you pod for companies under $2.5M ARR, and a done-for-you Full Service team. It is the pick when a startup needs a whole marketing function rather than search alone, though the full team is priced for later-stage companies.
How to choose
Six questions to ask before you sign.
Who on your team works with startups at our stage right now?
What will you ship in the first 90 days?
How do you connect a keyword to a signup or demo?
How do you measure AI search visibility?
What are the commitment terms, and what happens at 90 days?
What would you not do for us?
FAQs
Common questions about hiring an agency
If yours is not here, bring it to the call. Same unpolished answer either way.
What is the best SEO agency for a SaaS startup?
+For post-PMF startups from seed to Series A that want SEO and AI search tied to demos, we would argue for us, and we published the criteria so you can check the reasoning. MADX Digital is the strongest alternative with published tiers, Quoleady is the cheapest published entry point, and Scalerrs or Skale suit Series A.
How much does SEO cost for a SaaS startup?
+Published floors on this list run from $2,250 a month at Quoleady to $5,500 at MADX Digital, with most between $2,500 and $4,050. Ours is public and starts at $4,050. Scalerrs and Skale quote from $5,000 per project, Minuttia prices on request, and Kalungi runs from $2,500 for coaching to $50,000 or more for a full team.
When should a SaaS startup start investing in SEO?
+After product-market fit, when you know which buyer you are writing for and which pages convert. Before that, a founder-written content plan and a clean technical setup cost less than any retainer here, and several of these agencies decline pre-PMF companies anyway.
Should a startup hire an SEO agency or an in-house marketer first?
+At seed, an agency usually buys you a senior strategist and a production team for less than one experienced hire. At Series A, many teams hire a content or growth lead and keep an agency for strategy, technical work, and links. Kalungi is the option here if you want the whole marketing function outsourced.
Does AI search matter for an early-stage SaaS company?
+Yes, and earlier than most founders expect. Assistants such as ChatGPT and Perplexity cite comparison and listicle pages from across the web, so a young domain can show up in answers before it ranks on Google. Every agency here except Kalungi sells an AI search practice.
How is this list scored, and did you rank yourself first?
+Seven weighted criteria, fixed before scoring and re-scored quarterly, with stage fit weighted highest. Yes, we ranked ourselves first. Every entry carries the same fields, the same criteria, and a tradeoff line, including ours, and where a figure is not public we say so rather than filling the gap.
Next step
Your GEO plan, built on your numbers.
Give us your domain and your pipeline goal. We map the prompts your buyers are asking, build your GEO marketing plan against them, and forecast the pipeline the next 90 days can realistically produce.
What we walk through