A cairn is a stack of stones, laid to mark the safe path.
The name comes from the markers laid by the people who came before. We built Cairn after watching safety teams work through OSHA enforcement data that was never designed to be queried. The data is public, but reading it the way a compliance officer needs to takes expertise most teams have to buy by the hour.
Cairn is an OSHA compliance research platform that puts the federal compliance record in one cited place, covering regulatory text, agency interpretations, enforcement history, and related safety research. Ask a question in plain language and get an answer with citations to the same documents the agency's own field staff reference, so you can open the source and check it.
We are the research layer underneath your Environmental, Health, and Safety (EHS) platform, and we answer the question "is what we're doing legal, and how do I prove it?" Our research spans four OSHA compliance tools that all read the same record.
We are headquartered in Boston, with safety practitioners and engineers across the United States. Our customers run plants, job sites, and pipelines. They want the citation and the source document, and Cairn gives them both.
What's in the record
Cairn's record is built from authoritative public datasets. We read primary sources and leave the underlying records unaltered, and every citation links back to the original document.
Cairn covers enforcement histories, regulatory text, agency interpretations, and related safety research, all drawn from public federal sources. Ask a question, get answers based on the same record the agency's own field staff reference, or check your citation risk by industry for free.
A complete list of underlying datasets, refresh schedule, and licensing is available under a Non-Disclosure Agreement (NDA). Ask sales for the data appendix to the Master Services Agreement (MSA).
What we promise
Claims are cited
If Cairn can't base an answer on a public source, the answer says so. We would rather say "I don't know" than make something up.
Customer data is never used to train models
Your queries, chats, facility list, and Letter of Interpretation (LOI) drafts never become part of our model training. They stay in your organization's account only.
We don't replace your safety judgment
Cairn is a research tool. It shows the standards, citations, and precedent. The decision is still yours, and Cairn gives you the sources to defend it.