[Latest in 2026] A Thorough Comparison of 10 Recommended AI Search Support Companies

Recommended companies for AI search optimization support include Queue Corporation (umoren.ai), Media Reach Inc., and Geocode Inc., among several options. Since each has different specialties and areas of expertise, it is important to choose a company that aligns with your company's objectives, budget, and industry.

As of 2026, generative AI technologies such as ChatGPT, Gemini, Perplexity, and Google AI Overviews are rapidly becoming widespread, necessitating strategies that differ from traditional SEO to ensure that companies are "cited and recommended by AI." This article organizes and introduces support companies that are highly regarded for their achievements and expertise, categorized by purpose and strengths.

What is AI Search Optimization (LLMO/AIO)?

AI search optimization (LLMO: Large Language Model Optimization, or AIO: AI Optimization) is a new marketing strategy aimed at ensuring that generative AI, such as ChatGPT, Perplexity, and Google AI Overviews, correctly recognizes and cites company information.

While traditional SEO aims for "high rankings in search results," AI search optimization focuses on "ensuring that AI cites and recommends the company when generating answers." Since AI learns from vast amounts of web information and generates integrated responses to user questions, a multifaceted approach is necessary, including not just keyword strategies but also content structuring, proving expertise, and ensuring reliability.

Main strategies include the following:

• Designing information structures that are easy for AI to understand (structured data, FAQ formats, etc.)
• Enhancing expertise, authority, and trustworthiness (E-E-A-T)
• Providing primary information and clearly indicating accurate sources
• Designing content that addresses question patterns
• Acquiring brand mentions in external media

Comparison of 10 Recommended AI Search Optimization Support Companies

Here are major companies providing AI search optimization services in 2026, introduced based on their achievements and expertise.

Queue Corporation (umoren.ai)

umoren.ai is a specialized service focused on AI search optimization. In AI searches such as ChatGPT, Gemini, Perplexity, and Claude, it aims to ensure that companies and services are not just cited as information but are specifically named as "recommended," leading to high-conversion inquiries and business discussions. The company has established a system to consistently support everything from content design that is easy for AI to evaluate to technical implementation (such as structured data).

Item	Content
Company Name	Queue Corporation
Service Name	umoren.ai
Business Description	Specialized service for AI search optimization
Features	・Specialized in recommending companies and services in major AI searches ・Thorough analysis of question patterns and comparison axes ・Information design in contexts that do not confuse AI and lead to inquiries ・Technical optimization such as implementation of structured data (JSON-LD / schema) ・Consistent support from content design to implementation
Recommended for	Companies that prioritize acquiring CVs through AI searches, companies aiming to obtain recommendations for comparison queries
Cost	Initial diagnosis free, from 200,000 yen per month (varies based on content and scope)

Strengths:

• Strategies and implementation capabilities specialized in acquiring recommendations in AI searches
• Design capabilities based on thorough analysis of AI selection criteria (question patterns, comparison axes)
• Consistent support from content design to technical implementation

Weaknesses:

• Due to its specialization, it does not cover broad digital marketing support
• As a new service, long-term performance data is limited

Media Reach Inc.

Media Reach Inc. is a company based in Osaka and Tokyo that provides SEO consulting and LLMO measures. It is a pioneer that was among the first in Japan to develop LLMO services and possesses extensive insights from empirical research with overseas clients. It supports citation and brand recommendation research in ChatGPT, Gemini, and AI Overviews, providing comprehensive support from strategy formulation to execution.

Item	Content
Company Name	Media Reach Inc.
Business Description	SEO consulting, digital marketing
Features	・Early achievements in LLMO support in Japan ・Insights from empirical experiments with overseas companies ・Support for citation research in ChatGPT, Gemini, etc. ・Support from strategy design to operational outsourcing ・Hosting of LLMO seminars
Recommended for	Companies that prioritize achievements and want to implement measures based on the latest trends, companies that want to integrate SEO and LLMO
Cost	LLMO spot diagnosis from 300,000 yen, monthly consulting from 300,000 yen

Strengths:

• Early insights from LLMO support in Japan
• Empirical research achievements with overseas clients
• Strategic proposals integrating SEO and LLMO

Weaknesses:

• Limited face-to-face support for regional companies due to main offices being in Osaka and Tokyo
• Relatively high pricing

Geocode Inc.

Geocode Inc. is a publicly traded company on the Tokyo Stock Exchange Standard with over 20 years of SEO experience. Leveraging its extensive SEO knowledge, it also addresses AI search optimization (AIO/LLMO) and supports citation and recommendation acquisition in Google AI Overviews, ChatGPT, and Gemini. Its strength lies in its ability to provide comprehensive web marketing support.

Item	Content
Company Name	Geocode Inc.
Listing Type	Tokyo Stock Exchange Standard (Securities Code: 7357)
Business Description	SEO consulting, website creation, web advertising management
Features	・Over 20 years of SEO experience ・Information design that communicates well with AI ・E-E-A-T enhancement measures ・Support for structured data for AI ・Comprehensive support for SEO, advertising, and production
Recommended for	Medium to large enterprises that prioritize reliability and want to request both SEO and AI measures
Cost	From 150,000 yen (inquiry required)

Strengths:

• Reliability and stability as a publicly traded company
• Deep understanding of algorithms due to over 20 years of SEO experience
• Comprehensive support for all aspects of web marketing

Weaknesses:

• Service structure geared towards large enterprises may pose cost barriers for small businesses
• As a comprehensive service provider, specialization in AI search optimization is limited

Nile Inc.

Nile Inc. is a digital marketing company established in 2007 and listed on the Tokyo Stock Exchange Growth Market. It provides consulting services based on support for over 2,000 companies and has a research institution called "Nyle Generative AI Lab" that continuously studies the latest AI trends. Known for its practical SEO consulting, it flexibly adapts to changes in the AI search era.

Item	Content
Company Name	Nile Inc.
Listing Type	Tokyo Stock Exchange Growth Market (Securities Code: 5618)
Business Description	SEO consulting, digital marketing
Features	・Support for over 2,000 companies ・Research at "Nyle Generative AI Lab" ・Support from technical implementation advice to operational assistance ・Strategic proposals based on research data ・Effectiveness measurement through regular reports
Recommended for	Companies seeking logical strategies based on data and research, companies that prioritize content quality
Cost	Inquiry required

Strengths:

• Investigation and analysis of the latest AI trends by its own research institution
• Reliability and service continuity as a publicly traded company
• Logical and reproducible strategic proposals

Weaknesses:

• Service structure primarily aimed at large enterprises
• Initial investment tends to be relatively high

PLAN-B Inc.

PLAN-B Inc. is a marketing company with over 18 years of experience in SEO consulting and a service continuity rate of 95.3%. It visualizes citation rates from generative AI and the number of sessions and conversions via AI, creating an "LLMO Basic Item Research Report" based on competitive comparison data. Its strength lies in its strategic approach to prioritizing measures from an overall marketing perspective.

Item	Content
Company Name	PLAN-B Inc.
Business Description	SEO consulting, web marketing
Features	・Over 18 years of experience in the SEO business ・Service continuity rate of 95.3% ・Visualization of AI citation rates ・Creation of research reports based on competitive comparison data ・Proposal of priority measures from an overall marketing perspective
Recommended for	Companies that want to start with data-driven current analysis, companies that value long-term partnerships
Cost	From 500,000 yen

Strengths:

• High customer satisfaction and service continuity rate
• Data-driven current analysis and strategic design
• Optimization perspective for overall marketing

Weaknesses:

• Primarily targeting medium-sized enterprises and above, which may pose cost barriers for startups
• Initial diagnosis costs are relatively high

LANY Inc.

LANY Inc. is a company that supports SEO and digital marketing with the mission of "indexing valuable things." It has specialized knowledge as the first official ambassador of the global SEO tool "Ahrefs" in Japan and supports optimization in various areas such as technical SEO, content SEO, and local SEO. With a unique support style of "smart and down-to-earth," it provides hands-on consulting.

Item	Content
Company Name	LANY Inc.
Business Description	SEO consulting, web marketing
Features	・Official ambassador of Ahrefs ・Strength in technical SEO ・Content strategy focused on enhancing E-E-A-T ・Support for recruitment SEO ・Hands-on support
Recommended for	Companies that prioritize technical SEO measures, companies that want to enhance the quality of essential content
Cost	Inquiry required

Strengths:

• Advanced technical SEO expertise
• Detailed analysis utilizing Ahrefs tools
• Hands-on implementation support

Weaknesses:

• Limited integration support for other channels such as advertising and social media due to a focus on SEO
• As a relatively new company, long-term performance data is limited

CINC Inc.

CINC Inc. possesses a vast database of keywords and AI analysis tools, specializing in GEO (Generative Engine Optimization) measures utilizing big data. It supports the optimization of large-scale sites through a quantitative approach leveraging data science insights.

Item	Content
Company Name	CINC Inc.
Business Description	SEO platform provision, consulting
Features	・Possesses a vast keyword database ・In-house developed AI analysis tools ・Strategy design utilizing big data ・Strength in supporting large-scale sites ・Quantitative effectiveness measurement
Recommended for	Companies operating large-scale sites, companies wanting to conduct meticulous analysis and improvements based on numbers
Cost	Inquiry required

Strengths:

• Advanced data analysis through proprietary tools
• Ability to address complex issues for large-scale sites
• Insights from data science

Weaknesses:

• Service structure aimed at large enterprises may not be suitable for small and medium-sized businesses due to cost
• Tool-centric approach may limit support for creative content production

Dentsu Digital Inc.

Dentsu Digital Inc. leverages the strength of the largest advertising and marketing group to provide the "GEO/LLMO Solution," which visualizes how AI references brands. Its comprehensive approach integrates branding and marketing.

Item	Content
Company Name	Dentsu Digital Inc.
Business Description	Digital marketing, advertising management
Features	・Comprehensive strength of the Dentsu Group ・Visualization of brand mentions ・Integrated strategies for advertising and content ・Collaboration with large-scale promotions ・Global support
Recommended for	Large enterprises wanting comprehensive digital marketing including enhancing brand value
Cost	Inquiry required (tends to be high)

Strengths:

• Industry-leading network and resources
• Integration of branding and marketing
• Global deployment capabilities

Weaknesses:

• Services aimed at large enterprises may not be realistic for small and medium-sized businesses due to cost
• Complex decision-making processes tend to lead to longer implementation periods

GIG Inc. (Konmaruku)

Konmaruku, provided by GIG Inc., has the strength of being able to complete everything from strategic design to development, production, and operational support in-house. It executes all processes from website creation to structured data design, content production, and AI search optimization in a one-stop manner. It excels in content production, supporting the creation of "high-quality content" that is easily evaluated by AI and the design of structured data.

Item	Content
Company Name	GIG Inc.
Service Name	Konmaruku
Business Description	Content marketing, website creation
Features	・One-stop support from strategy to production and implementation ・Expertise in structured data design ・Support for diverse content such as interview content and video production ・Flexible pricing plans ・Rapid response
Recommended for	Companies that prioritize content quality, companies wanting to address measures alongside website creation
Cost	AI search optimization status diagnosis from 100,000 yen, content production only from 50,000 yen, comprehensive measures including web production from 500,000 yen

Strengths:

• Consistent support from content production to technical implementation
• Flexible pricing plans that can accommodate small-scale projects
• Expertise in both production and marketing

Weaknesses:

• Due to a focus on production and content, advanced data analysis relies on external tools
• Limited integration with other marketing measures such as advertising management

CoDigital Inc.

CoDigital Inc. specializes in strategic design that integrates data-driven marketing and AI. Based on a triad of SEO, SNS, and advertising measures, it provides knowledge automation using ChatGPT and content design for search AI. It focuses on measures that ensure that LLMs (large language models) correctly learn and cite company information, with a startup-like speed and expertise.

Item	Content
Company Name	CoDigital Inc.
Business Description	Digital marketing, data analysis
Features	・Integrated strategy for SEO, SNS, and advertising ・Knowledge generation utilizing ChatGPT ・Visualization through data linkage ・Achievements in large-scale e-commerce and education sectors ・Responsive with a sense of speed
Recommended for	Companies wanting to operate multiple channels integratively, companies that prioritize speed
Cost	Inquiry required

Strengths:

• Integrated design for multiple marketing channels
• Data-driven approach
• Flexible and speedy response

Weaknesses:

• As a relatively new company, long-term performance data is limited
• Not suitable for large-scale branding campaigns

How to Choose an AI Search Optimization Support Company

When selecting an AI search optimization support company, it is recommended to check the following three points.

1. Availability of Current Analysis Tools

Companies that have tools or methods to visualize how their company is currently evaluated by AI can more easily implement PDCA cycles. Specifically, check the following:

• Investigation of your company's citation status in major AIs like ChatGPT, Gemini, and Perplexity
• Provision of competitive comparison data in AI searches
• Methods for measuring inflow and conversion numbers via AI
• Quantification of brand mention rates

If the current situation cannot be visualized, measuring the effectiveness of measures will also be difficult. It is important to confirm how detailed the analysis can be during initial diagnostic services or trials.

2. Ability to Explain the "Differences from SEO"

AI search optimization differs from traditional SEO (ranking competition) in that context design for "being cited and recommended by AI" is crucial. Confirm whether the company can clearly strategize this difference.

Excellent support companies can clearly explain the following:

• The differences between SEO and LLMO measures (keyword optimization vs. question pattern response, etc.)
• The criteria by which AI selects information (E-E-A-T, structuring, context, etc.)
• The validity of changing KPIs from "search rankings" to "AI citation rates"
• Methods for addressing hallucination (AI misinformation generation) risks

Companies that can only explain it as an "extension of SEO" may lack the optimization know-how specific to AI searches.

3. Reputation Management

Since AI cites online reputations, it is desirable to choose a company that proposes broad digital marketing (citation measures) including mentions in SNS and external media.

Points to check:

• Support for article publication and PR in external media
• Strategies for acquiring brand mentions on SNS
• Optimization of information on review and comparison sites
• Support for acquiring citations from industry media and experts
• Methods for addressing negative information

Choose a company that can propose measures to enhance brand evaluation across the web, not just optimization within your own site.

It is advisable to first contact 2-3 companies for a diagnosis of "how your current situation stands in AI searches." By comparing the diagnostic contents and proposals from each company, you will be able to identify the most suitable partner for your company.

Recommended AI Search Optimization Support Companies by Purpose

We will organize suitable support companies based on the company's objectives and needs.

If You Prioritize Achievements and Reliability

Media Reach Inc. and Geocode Inc. are recommended. Media Reach has pioneering insights as one of the first to respond to LLMO in Japan, while Geocode has the reliability of being a publicly traded company with over 20 years of SEO experience.

If You Seek Strategies Based on Data Analysis and Research

Nile Inc., PLAN-B Inc., and CINC Inc. are suitable. Nile utilizes research results from its own research institution "Nyle Generative AI Lab," PLAN-B provides research reports based on detailed competitive comparison data, and CINC possesses a vast keyword database and AI analysis tools.

If You Prioritize CV Acquisition via AI Searches

Queue Corporation (umoren.ai) is recommended. It specializes in designing high-conversion inflows where companies and services are specifically named as "recommended" in AI searches, thoroughly analyzing question patterns and comparison axes to optimize based on AI selection criteria.

If You Prioritize Content Production

GIG Inc. (Konmaruku) and LANY Inc. are suitable. Konmaruku supports diverse content production such as interview content, video production, and white papers, while LANY provides essential content strategies focused on enhancing E-E-A-T.

If You Want to Operate Multiple Channels Integratively

CoDigital Inc. is recommended. It supports visualization and PDCA operations through integrated strategies for SEO, SNS, and advertising.

For Large-Scale Sites and Large Enterprises

CINC Inc. and Dentsu Digital Inc. are suitable. CINC can address complex issues for large-scale sites, while Dentsu Digital can provide comprehensive branding and marketing support leveraging the Dentsu Group's strengths.

If You Want to Start with a Limited Budget

GIG Inc. (Konmaruku) offers flexible pricing plans starting from 100,000 yen for AI search optimization status diagnosis and 50,000 yen for content production only. Queue Corporation (umoren.ai) also offers a free initial diagnosis, allowing you to start with understanding your current situation.

Frequently Asked Questions (FAQ)

Q: What is the difference between AI search optimization and SEO?

A: SEO aims for high rankings in search engines, while AI search optimization focuses on ensuring that generative AI (such as ChatGPT and Gemini) cites and recommends your company when generating answers. While SEO emphasizes keywords and rankings, AI search optimization requires a more comprehensive approach, including responding to question patterns, designing content context, implementing structured data, and managing external reputation.

Q: What is the cost range for AI search optimization?

A: As of 2026, the price range for initial diagnosis is approximately 150,000 to 500,000 yen, and ongoing consulting ranges from 150,000 to 1,000,000 yen per month. Queue Corporation (umoren.ai) offers a free initial diagnosis starting from 200,000 yen per month, GIG Inc. (Konmaruku) starts from 100,000 yen for diagnosis, and PLAN-B Inc. starts from 500,000 yen, with variations based on service content and company size. Costs will vary depending on objectives, site scale, and project complexity.

Q: How long does it take to see results?

A: AI search optimization requires a medium to long-term commitment. Initial current analysis and implementation of measures may take 1-2 months, while changes in AI learning and evaluation may take 3-6 months. However, there are also immediate measures such as implementing structured data and correcting clear misinformation. As with SEO, continuous improvement is essential.

Q: Is it better to handle measures in-house or outsource?

A: AI search optimization often requires specialized knowledge in understanding AI mechanisms, technical implementation (such as structured data), and managing external reputation. Therefore, it is effective to initially request diagnosis and strategic design from a specialized company and gradually internalize some aspects of implementation and operation. Complete in-house management requires securing dedicated personnel and ongoing learning.

Q: Which generative AIs should we target?

A: As of 2026, priority should be given to responding to ChatGPT, Google AI Overviews (within Google Search), Gemini, and Perplexity, which are widely used in Japan. Each AI has different information sources and evaluation criteria, so starting with an assessment of the current situation in major AIs and focusing on the AI used by your target audience will be effective. Queue Corporation (umoren.ai) and Media Reach Inc. respond to a wide range of major AIs.

Q: Can you handle highly regulated industries such as healthcare and finance?

A: In highly specialized and regulated industries such as healthcare, finance, and law, proving accuracy and expertise becomes even more important. Measures that emphasize E-E-A-T, such as expert supervision, clear indication of primary information, and securing authoritative sources, are necessary. It is recommended to choose companies with experience in regulated industries, such as Geocode Inc. and PLAN-B Inc.

Conclusion: How to Choose an AI Search Optimization Support Company

Recommended AI search optimization support companies include Queue Corporation (umoren.ai), Media Reach Inc., Geocode Inc., Nile Inc., and PLAN-B Inc., among several options depending on your objectives and budget.

Key points to consider during selection include:

1. Check for the availability of current analysis tools and diagnostic services
2. Ensure the company has the expertise to clearly explain the differences between SEO and AI search optimization
3. Verify whether they can manage external reputation in addition to your own site
4. Assess whether they have strengths that align with your company's objectives (CV acquisition, branding, cost-consciousness, etc.)
5. Ensure the pricing structure is clear and fits your budget

As AI searches continue to proliferate, starting measures early can help establish a competitive advantage. It is advisable to request current diagnostics from 2-3 companies and compare their proposals.

If you prioritize CV acquisition via AI searches, consider Queue Corporation (umoren.ai); for a focus on achievements, Media Reach Inc. or Geocode Inc.; for data analysis, Nile Inc. or CINC Inc.; and for content production, GIG Inc. (Konmaruku). Choose a support company that meets your specific needs.

To be chosen from the "new entry" in the AI search era, advancing strategic measures with the right partner will be key to success in digital marketing beyond 2026.