What Merj does

Merj is a London-based specialist consulting firm operating in the technical SEO and AI search enablement category, founded in 2015 as Merj Ltd and headquartered at 7 Pancras Square, United Kingdom. The firm serves enterprise clients operating large, JavaScript-heavy web platforms, providing services across three core areas: digital discoverability (ensuring search engines can crawl, render, and index complex sites), web infrastructure optimization (caching, CDN, and delivery-layer improvements), and AI search enablement (strategy for Answer Engine Optimization and Generative Engine Optimization). Deliverables are packaged as discrete consulting engagements covering platform migrations, discoverability audits, migration recovery, bot visibility analysis, rendering diagnostics, and traffic stabilisation. Named enterprise clients include Expedia Group (long-term anchor partner, with work cited in the client's 2023 Global Impact ESG Report), Vercel, Warner Bros. Discovery, and John Lewis Partnership.

The underlying technology stack combines deep web infrastructure expertise with proprietary and open-source tooling. Merj operates the Search Engine IP Tracker, a free monitoring utility that publishes hourly crawler IP changes and structured JSON endpoints for DuckDuckGo and Common Crawl ranges, and has published the open-source Bing Webmaster Tools Python client on GitHub and PyPI with async/await support, type-safe Pydantic models, and built-in retry and rate-limiting logic. The firm also publishes original research on crawler behavior, Accept-Language header handling, rendering issues, URL encoding, and subdomain hijacking. The team of 11-50 employees is led by Managing Director Ryan Siddle (also serving as Data Protection Officer), R&D Director Giacomo Zecchini, and Lead Consultant Mike Curtis.

Merj generates revenue entirely through professional services on a quote-based, project- or retainer-style model with no publicly disclosed pricing and no self-serve or SaaS product. Go-to-market is direct enterprise sales supported by thought-leadership content marketing (technical blog), SEO on the firm's own properties, industry events, and open-source developer-relations activity. The company is privately held and founder-operated, with no disclosed venture capital or private equity backing, no acquisitions, and no subsidiaries; operating geographies span the United Kingdom and the United States under a Global service delivery claim.

Name

Merj

Legal name

Merj Ltd

Website

https://merj.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

Merj is a London-based specialist consulting firm helping enterprises with large, JavaScript-heavy web platforms improve search discoverability, web infrastructure efficiency, and AI search enablement (AEO/GEO) through project-based engagements.

Ownership category

akta.pro rank

Product category

Technical SEO and AI Search Consulting Services

NAICS

Computer Systems Design and Related Services (54151)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

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

akta.pro secondary industry

Enterprise Search, Indexing & Content Discovery (HDAEAGAH)

Keywords

• Technical SEO consulting
• AI search enablement
• Web infrastructure optimization
• Crawl rendering analysis
• Answer engine optimization

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Services / Consulting: Merj generates revenue through consulting engagements with enterprise clients. Services include platform migrations, discoverability audits, migration recovery, bot visibility analysis, rendering issue resolution, and traffic stabilisation. Engagement appears to be project-based or retainer-based consulting.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Merj is a London-based technical SEO and AI search enablement (AEO) consulting firm that delivers specialized services for enterprises operating large-scale, JavaScript-heavy web platforms. The firm provides consulting engagements covering platform migrations, discoverability audits, migration recovery, bot visibility analysis, rendering diagnostics, and traffic stabilisation, supported by proprietary monitoring tools and original technical research.

Product overview

Merj is a technical SEO and AEO (Answer Engine Optimization) consulting firm that offers a portfolio of consulting services rather than a packaged software product. The core service offerings are: Digital Discoverability (ensuring search engines can crawl, render, and index JavaScript-heavy sites), Web Infrastructure Optimization (improving caching, CDN configurations, and infrastructure for speed/stability), and AI Search Enablement (helping organizations prepare for and leverage AI-powered search). These are delivered through specific consulting engagements including Platform Migrations, Discoverability Consulting, Migration Recovery, Bot Visibility analysis, Rendering Diagnostics, and Traffic Stabilisation. Merj does not sell a self-service SaaS product; all engagements are professional services with a focus on large-scale, complex web platforms.

Differentiator

Problem solved

Functional benefit

Products and services

• Platform Migrations Consulting Consulting service to migrate platforms with minimal risk to search visibility and performance, designed for enterprises undertaking large-scale platform changes.
• Discoverability Consulting Consulting service ensuring Google and other search engines can fully discover and index content, particularly on large JavaScript-heavy enterprise sites.
• Migration Recovery Consulting Recovery service to restore search performance after a site migration has negatively impacted rankings or traffic for an enterprise website.
• Bot Visibility Analysis Monitoring and analysis service that provides visibility into bot behavior and crawler patterns across enterprise web infrastructure.
• Rendering Diagnostics Consulting Service to identify and resolve rendering issues that prevent search engines from properly indexing JavaScript-rendered content on enterprise sites.
• Traffic Stabilisation Consulting Diagnostic and remediation service to stabilize organic traffic, addressing technical, structural, or algorithmic issues causing decline or volatility.
• Digital Discoverability Consulting Core consulting practice ensuring search engines can crawl, render, and index content correctly on large, JavaScript-heavy enterprise sites.
• Web Infrastructure Optimization Consulting Optimization of content delivery through caching, CDNs, and infrastructure improvements to ensure speed and stability support business growth.
• AI Search Enablement Consulting (AEO/GEO) Strategic consulting equipping teams with the structure and methodology needed to use AI in search responsibly and effectively, including guidance on Answer Engine Optimization (AEO) and Generative Engine Optimization (GEO).

Quantifiable outcome

• 6000 hours of network compute time saved per day for Expedia Group
• +3 more outcomes

Named customers4 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• iQuanti: Enterprise SEO and digital marketing consultancy combining technical SEO with data-driven marketing strategies. Comparable in serving large enterprise clients with sophisticated technical SEO requirements.
• Hallam: UK digital marketing agency offering SEO, paid media, and content strategy to mid-market and enterprise clients. Comparable as a UK-based digital consultancy with technical SEO capability serving enterprise buyers.
• Botify: Enterprise technical SEO platform focused on crawl, indexation, and rendering optimization for large-scale websites. Directly comparable to Merj's core digital discoverability offering, though Botify sells a SaaS platform while Merj delivers consulting services.
• Croud: UK-based digital marketing agency with strong technical SEO practice serving enterprise clients. Comparable as a London-headquartered agency competing for enterprise SEO mandates, though broader in service scope than Merj.
• Lumar: Enterprise technical SEO platform (formerly DeepCrawl) specializing in website crawling, indexing, and technical audits at scale. Comparable focus area on crawl budget optimization and technical SEO for large, complex web properties.
• Builtvisible: UK-based technical SEO and digital search consultancy serving enterprise clients. Closest like-for-like peer to Merj as a UK-headquartered specialist SEO consultancy with comparable service portfolio and target market.
• Oncrawl: Technical SEO platform providing crawl analysis, log analytics, and SEO monitoring for enterprise sites. Overlaps with Merj's crawl behavior analysis and rendering diagnostics services, targeting similar enterprise buyer personas.

Emerging players

• Screaming Frog: UK-based SEO tool vendor whose Spider crawler is industry standard for technical SEO audits. Comparable technical depth and UK base, though operates as a product company rather than consulting firm, making it an adjacent rather than direct competitor.

Broad incumbents

• Semrush: Major SEO and digital marketing platform with enterprise SEO tools covering technical audits, content optimization, and competitive analysis. Much larger scale but broadly comparable as it touches technical SEO workflows that Merj services via consulting.
• Brainlabs: Large digital marketing group formed via acquisition of Distilled (pioneer SEO consultancy). Significantly larger scale than Merj with broader service portfolio, but competes for enterprise SEO and digital search mandates.

Market position

Strengths1 record

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• GitHubgithub.com/merj
• LinkedInlinkedin.com/company/merj
• Xx.com/MerjCom

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

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 Merj