# Berkshire Hathaway

> Berkshire Hathaway Inc. is a multinational conglomerate holding company headquartered in Omaha, Nebraska. It publishes no API of its own; its corporate site is a static set of shareholder, governance and news pages. The group's only public API programme belongs to BNSF Railway (freight rail), which is profiled as its own provider.

Generated by API Evangelist on 2026-09-19 from the apis.yml record and the artifacts in this repository (method: generated). No llms.txt is served at https://www.berkshirehathaway.com/llms.txt (404) or https://www.bnsf.com/llms.txt (404).

## Corporate

- [Berkshire Hathaway](https://www.berkshirehathaway.com): corporate home
- [Links to Berkshire Operating Companies](https://www.berkshirehathaway.com/subs/sublinks.html): the provider's own subsidiary list
- [Annual & Interim Reports](https://www.berkshirehathaway.com/reports.html)
- [News Releases](https://www.berkshirehathaway.com/news/2026news.html)
- [Corporate Governance](https://www.berkshirehathaway.com/govern/govern.html): governance guidelines, committee charters, insider-trading policy
- [Code of Business Conduct and Ethics](https://www.berkshirehathaway.com/govern/code.html)
- [Sustainability](https://www.berkshirehathaway.com/sustainability/sustainabilityintro.html)
- [Legal Disclaimer](https://www.berkshirehathaway.com/disclaimer.html): website terms

## APIs in the group

- [BNSF API Center](https://www.bnsf.com/ship-with-bnsf/support-services/customer-api/): BNSF Railway customer APIs — tracing, intermodal and automotive hub operations, prices and rates, schedules, waybill management, reference files, diagnostics; eight OpenAPI 3.0 documents, 59 operations, base https://api.bnsf.com:6443 (trial https://api-trial.bnsf.com:6443), certificate-based mutual TLS on port 6443, registration through the BNSF customer portal.
- [BNSF Developer's Console](https://www.bnsf.com/ship-with-bnsf/support-services/customer-api/developers-console/): Swagger UI over the eight published specs
- [BNSF Push Notifications (Webhooks)](https://www.bnsf.com/ship-with-bnsf/support-services/customer-api/push-notifications/): six documented webhook events
- [BNSF provider profile on apis.io](https://apis.io/providers/bnsf/): full artifact set for the BNSF Customer API

## Subsidiaries profiled on apis.io

- [BNSF](https://apis.io/providers/bnsf/)
- [GEICO](https://apis.io/providers/geico/)
- [Precision Castparts](https://apis.io/providers/precision-castparts/)
- [Dairy Queen](https://apis.io/providers/dairyqueen/)
- [Alleghany Corporation](https://apis.io/providers/alleghany/)

## Rate limits (BNSF API Gateway, published)

- 1 request per second, per partner, per service
- 15 requests per minute, per partner, per service
- 100 requests per minute, per service
- Exceeding a limit returns 429 Too Many Requests; no rate-limit headers are documented.

## Optional

- [Berkshire Hathaway on LinkedIn](https://www.linkedin.com/company/berkshire-hathaway)
- [SEC filings (EDGAR, CIK 1067983)](https://www.sec.gov/cgi-bin/browse-edgar?company=berkshire+hathaway&CIK=&action=getcompany)