RankScience

What RankScience does

RankScience is a San Francisco-based professional services agency that delivers SEO and AI search optimization engagements. Founded in 2017 as part of Y Combinator's W17 batch, the company has spent over seven years serving primarily startups, SaaS, and B2B clients, while more recently expanding service offerings into specialized local service verticals including telehealth, med spas, attorneys, and HVAC. The named marquee client base spans Zapier, Calm, and Rippling, with CareerKarma also cited; the company states it has worked with 'hundreds of startups' from seed stage through Series C.

The service catalog is organized around two pillars. The first is Foundational SEO, including On-Page SEO, Technical SEO (site speed, Core Web Vitals, schema markup, crawl budget optimization), Local SEO, and strategic Link Building. The second is Next-Gen AI Optimization, anchored by an AI Visibility Framework that bundles Generative Engine Optimization (GEO), Large Language Model Optimization (LLMO), and Answer Engine Optimization (AEO) across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews. Supporting the two pillars is a content offering (Content Writing, Content Strategy, and AI-Assisted Human-Edited Content) plus a Free AI Audit assessment tool used as a lead magnet. The company has explicitly discontinued prior software products (an SEO A/B testing platform and ContentEdge AI copywriting tool) and discontinued PPC services.

RankScience operates as a pure agency model rather than a SaaS business. Its go-to-market is sales-led with a consultative, high-touch motion: a free 30-minute strategy session is offered as a top-of-funnel entry, followed by stakeholder interviews, competitive analysis, and ongoing retainer engagements. Pricing is not publicly disclosed. The company is privately held as RankScience LLC, domiciled in California, with reported headcount in the 11-50 range and a single headquarters location in San Francisco. The last disclosed institutional capital is a $1.8M Series A led by Initialized Capital in October 2018.

Name

RankScience

Legal name

RankScience LLC

Website

https://rankscience.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

RankScience is a San Francisco-based SEO and AI search optimization agency specializing in GEO, LLMO, and AEO for startups, SaaS, and specialized local service verticals. A Y Combinator W17 graduate operating as a pure-play professional services firm, the company serves hundreds of clients including Zapier, Calm, and Rippling.

Ownership category

akta.pro rank

Product category

Search Engine Optimization Services

NAICS

Advertising Agencies (541810), Marketing Consulting Services (541613)

SIC

Services-Advertising Agencies (7311)

akta.pro primary industry

Enterprise SEO (Large Sites, Governance, Workflow) (BPAFAJAF)

akta.pro secondary industries

Technical SEO (Audits, Crawl/Indexing, Site Architecture) (BPAFAJAA), SEO Content Strategy & Production (Topic Research, Editorial Planning) (BPAFAJAH), Search, Review & Ratings Management (SEO/Content/Platforms/Local Listings) (MPAAAOAC)

Keywords

• SEO services
• AI search optimization
• Generative engine optimization
• LLM optimization services
• Answer engine optimization

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations

Revenue model

1. SEO and AI Search Optimization Services: RankScience provides professional SEO and AI search optimization agency services, including Generative Engine Optimization (GEO), Large Language Model Optimization (LLMO), and Answer Engine Optimization (AEO). The company helps companies achieve visibility across Google, Google AI Overviews, ChatGPT, Claude, Gemini, and Perplexity. Services include technical SEO, on-page SEO, content strategy, link building, and content writing.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels3 records

Core offering

RankScience is a pure-play professional services agency that delivers Foundational SEO (On Page, Technical, Local, and Link Building) and Next-Generation AI search optimization (an AI Visibility Framework combining Generative Engine Optimization, Large Language Model Optimization, and Answer Engine Optimization) to help startups, SaaS, AI, fintech, ecommerce, enterprise, and local service businesses gain visibility across Google, Google AI Overviews, ChatGPT, Claude, Gemini, and Perplexity. After discontinuing its prior software products (SEO A/B testing platform, ContentEdge AI copywriting tool) and PPC services, the company now operates exclusively as an SEO and AI search agency, supported by content writing, content strategy, and AI-Assisted Human-Edited Content offerings, with a Free AI Audit as a lead magnet.

Product overview

RankScience is a pure-play SEO and AI search optimization agency (not a software platform) that was founded in Y Combinator's W17 batch. The company offers a unified suite of digital marketing services organized into two main pillars: Foundational SEO (On Page SEO, Technical SEO, Local SEO, and Link Building/Off-Page SEO) and Next-Gen AI Optimization (AI Visibility Framework, Generative Engine Optimization/GEO, Large Language Model Optimization/LLMO, and Answer Engine Optimization/AEO). Content services including Content Writing, Content Strategy, and AI-Assisted Human-Edited Content support both pillars. The company also offers a Free AI Audit as a lead magnet. RankScience discontinued all software products (including its SEO A/B testing platform and ContentEdge AI copywriting tool) and now operates exclusively as a service agency helping companies capture visibility across Google, Google AI Overviews, ChatGPT, Claude, Gemini, and Perplexity.

Differentiator

Problem solved

Functional benefit

Products and services

• On Page SEO Strategic optimization of individual web pages — including headlines, body text, images, and internal linking structure — to rank higher in Google search results and engage human visitors. Delivered as a service to startups, SaaS, B2B, and other client companies.
• Technical SEO Professional service auditing and fixing website infrastructure — site speed, mobile-friendliness, indexability, schema markup, Core Web Vitals, crawl budget, and JavaScript rendering — to remove technical barriers that suppress search and AI visibility for clients.
• Local SEO Local search optimization service covering Google Maps visibility, Google Business Profile optimization, citation building, review generation, and location-focused content strategy for local service businesses such as healthcare providers, attorneys, and HVAC operators.
• Link Building (Off-Page SEO) Authority-building service that acquires high-authority backlinks from diverse sources using a proprietary identification process and by leveraging client relationships with industry associations, media outlets, and partners.
• AI Visibility Framework Comprehensive multi-platform AI search optimization service combining Generative Engine Optimization (GEO), Large Language Model Optimization (LLMO), and Answer Engine Optimization (AEO) so that clients are cited and surfaced as authoritative sources across ChatGPT, Claude, Perplexity, Gemini, and Google AI Overviews.
• Generative Engine Optimization (GEO) Service that optimizes clients for AI platforms such as ChatGPT, Claude, and Google AI Overviews through category creation, thought leadership positioning, and framework establishment.
• Large Language Model Optimization (LLMO) Service that structures client content and authority signals so that AI platforms such as ChatGPT, Claude, Gemini, and Perplexity recognize and cite the client's expertise using a proprietary 4-part Identification, Structure, Signals, and Optimization framework.
• Answer Engine Optimization (AEO) Service that applies specialized Q&A-formatting and proprietary question-intent analysis to maximize clients' direct-answer pickup across AI platforms (ChatGPT, Perplexity, SearchGPT, Gemini, Microsoft Copilot, Claude) and voice assistants.
• Content Writing Human-expert SEO content creation service producing landing pages, blog posts, guides, product descriptions, service pages, and ecommerce category pages tailored to both search engines and AI answer engines.
• Content Strategy Strategic content planning service including audience research, competitive analysis, topic clustering, customer-journey mapping, and content architecture that establishes topical authority for both Google and AI platforms.
• AI-Assisted Human-Edited Content Content production service that combines AI tools with human editorial expertise to produce original research, expert insights, case studies, and branded content with authentic voice and SEO/AI-search-grade optimization.
• Free AI Audit Free lead-magnet assessment that analyzes a prospect's current visibility across ChatGPT, Claude, Gemini, Perplexity, and Google AI Overviews and delivers actionable recommendations, used to convert prospects into SEO and AI search optimization clients.

Quantifiable outcome

• LLM traffic in double digits as percentage of Google organic traffic
• +7 more outcomes

Named customers4 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability3 records

Feature5 records

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Siege Media: SEO-focused content agency combining content production with technical SEO and link building. Comparable agency model targeting similar mid-market and enterprise digital-first brands.
• Single Grain: Digital marketing and SEO agency focused on SaaS and startup clients, offering SEO, content, and growth services. Highly comparable to RankScience's startup/SaaS-centric agency model and service mix.
• Omniscient Digital: B2B SaaS-focused SEO and content agency specializing in organic growth for venture-backed software companies. Directly comparable target customer and SEO-led service offering.
• Victorious SEO: Specialized SEO agency offering technical, on-page, and off-page SEO services with a methodology-driven, results-focused positioning analogous to RankScience's white-glove approach.
• iPullRank: Technical SEO agency known for deep technical audits, content engineering, and link strategy. Closely comparable technical-SEO-led, high-touch agency model.

Broad incumbents

• Neil Patel Digital: Large global digital marketing consultancy providing SEO, content, and paid media services. Comparable SEO services but operates at much larger scale and across a broader client mix.
• Brainlabs: Data-driven digital marketing agency offering SEO, paid media, and analytics at enterprise scale. Comparable on SEO capabilities but broader portfolio and significantly larger footprint.
• Conductor: Enterprise SEO platform with content guidance, technical SEO, and workflow tools. Overlaps with RankScience's enterprise SEO offering but delivered primarily as software with managed-services overlays.
• WebFX: Large, established full-service digital marketing agency offering SEO alongside paid media, web design, and CRO. Overlaps in core SEO services but at significantly broader scale and portfolio breadth.

Emerging players

• Profound: Early-stage platform specializing in AI/LLM search visibility analytics and optimization. Closely comparable category (AI search optimization) but operates as a SaaS tool rather than a pure agency.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds4 records

Investors9 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about RankScience