Berkshire Hathaway
berkshirehathaway.com · Finance · BRK.A, BRK.B
Ranked 1,194 of 2,047 companies in the study
- Visibility42
- Citations0
- Sentiment50
- Site quality40
- AI readiness7
AI assistants name Berkshire Hathaway in 28.3% of answers, much more often than the typical company in its sector. Its overall score is 30 out of 100, ranking 1,194th of 2,047. The website passes 1 of 14 technical checks for AI tools.
We asked 15 unbranded questions about the finance market: none named Berkshire Hathaway. AI assistants named it in 17 of 60 answers (28.3%). The typical finance company is named in 3.3% of answers. By how often it is named, Berkshire Hathaway ranks 20 of 205 in its sector.
Every dot is a company in the study. Hover one to see it; click to open its report.
This companySame sectorEvery other companyNever named
Five parts, each scored out of 100.
How often AI assistants name the company
How often AI uses the company's own website as a source
How positively AI describes the company
How well built the website's own pages are
How easily AI tools can read and use the website
Visibility is calculated from the answers on this page. How the score is built.
205 companies in this sector. The line on each bar is the typical company.
An answer that names the company
“What are the best conglomerate holding companies for institutional investors seeking diversification in the United States?”
For institutional investors seeking diversification in the United States, several conglomerate holding companies offer exposure across multiple sectors and often have global revenue streams, which can help reduce single-industry and geographic risk.
Some of the prominent US-based conglomerate holding companies that institutional investors might consider include:
Berkshire Hathaway Inc. (BRK.A/B): Often cited as the archetypal example of a successful conglomerate, Berkshire Hathaway has a highly diversified portfolio spanning insurance (GEICO, General Re), energy (Berkshire Hathaway E …
The AI’s answer as we received it, shortened and not checked for accuracy.
How the mentions in these answers were split between this company and its rivals
Answers naming it, out of answers received
What this website publishes for an AI agent to read, use and buy from, on a scale of six levels.
- 0
- 1
- 2
- 3
- 4
- 5
Level 0: Not yet agent-ready. Agents struggle to find basic information about the site.
- 2 of robots.txt, Sitemap, Link headers
Show every check, for your technical teamHide the checks
- study: 92.0%robots.txtNot met
Publish a valid robots.txt with crawl rules and a Sitemap line.
- study: 86.8%SitemapNot met
Serve an XML sitemap and reference it from robots.txt.
- study: 0.3%Link headersNot met
Send Link headers such as rel="api-catalog" or rel="describedby" on the homepage.
- study: 5.5%DNS for AI DiscoveryNot present
Advertise agent endpoints with SVCB records under _agents.
- study: 1.9%Markdown negotiationNot met
Return a markdown version when asked with Accept: text/markdown, for example at the CDN.
- study: 25.1%llms.txtNot met
Publish an llms.txt with a short summary and the key links.
- study: 93.4%AI bot rulesNot met
Add explicit robots.txt groups for the main AI crawlers.
- study: 1.4%Content SignalsNot met
Add a Content-Signal line for search, ai-input and ai-train to robots.txt.
- study: 0.2%Web Bot AuthNot present
Only relevant if you run your own agents or crawlers: publish a signing key directory.
- study: 0.3%API CatalogNot met
List public APIs in a linkset at /.well-known/api-catalog.
- study: 11.8%OAuth discoveryNot met
Publish OpenID Connect or OAuth server metadata under /.well-known.
- study: 10.3%OAuth Protected ResourceNot met
Serve protected resource metadata at /.well-known/oauth-protected-resource.
- study: 0.0%auth.mdNot met
Publish an auth.md describing how agents sign in.
- study: 0.2%MCP Server CardNot met
Offer an MCP server and publish its server card under /.well-known.
- study: 0.1%A2A Agent CardNot met
Publish an agent card at /.well-known/agent-card.json.
- study: 0.2%Agent SkillsNot met
Publish a skills index with the main tasks agents can do.
- study: 33.7%WebMCPCould not check
Register key actions such as search or cart as WebMCP tools.
- study: 0.1%ARD manifestNot met
Publish an ai-catalog.json listing every agent interface.
Score 0 of 100 · 97% of checks could run · checked on October 5, 2026 · berkshirehathaway.com · 2,047 companies scanned
1 of 14 passed. This list is for your technical team. The percentage is how many companies in the study pass each check.
These 14 checks ran during the audit and are what the AI readiness part of the overall score counts. The scan above ran later and is stricter on Link headers and Markdown, so a check can pass here and not there.
Show the 14 checksHide them
- Not metrobots.txt publishedstudy: 85.0%
- Not metXML sitemapstudy: 73.2%
- Not metHTTP Link headers (RFC 8288)study: 29.0%
- Not metMarkdown content negotiationstudy: 8.3%
- Not metllms.txt publishedstudy: 21.7%
- PassedToken budget (page weight)study: 95.2%
- Not metExplicit AI bot rulesstudy: 13.0%
- Not metAPI Catalog (.well-known/api-catalog)study: 0.2%
- Not metOAuth Authorization Server discoverystudy: 10.1%
- Not metOAuth Protected Resource discoverystudy: 9.3%
- Not metMCP Server Cardstudy: 0.0%
- Not metA2A Agent Cardstudy: 0.0%
- Not metWebMCP toolsstudy: 4.2%
- Not metAgent Skills declaredstudy: 0.0%
How many times each website was listed as a source in these answers
In the study as S&P 500.
- Common challenges when analyzing financial reports from diversified holding companies
- How can investors understand the impact of subsidiary performance on overall holding company results?
- What are the best conglomerate holding companies for institutional investors seeking diversification in the United States?
- How are management fees and costs structured for shareholders of publicly traded holding companies?
- Key factors to look for when evaluating a multinational holding company for potential investment
- Do conglomerate holding companies typically trade at a premium or discount to their net asset value?
- What types of industries are most often included under large U.S.-based holding company umbrellas?
- How do diversified holding companies compare to private equity firms in terms of business strategy and risk profile?
- How do holding companies serve institutional investors looking for stable returns?
- What are the pros and cons of adding a U.S.-based conglomerate holding company to an institutional portfolio?
- Examples of how business professionals leverage holding companies for corporate acquisitions
- Conglomerate holding company vs. standalone operating company: which is better for long-term shareholders?
- What are some alternatives to investing in conglomerate holding companies for U.S. shareholders?
- Other ways to achieve diversified exposure besides multinational holding companies
- Is it worth investing in a large publicly traded holding company for exposure to multiple industries?
Columns, left to right: OpenAI, Claude, Perplexity, Gemini. The AI assistants often disagree. Across the study, on 40% of the questions where a company is named, only one of the four names it.
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