{"@context":{"@vocab":"https://schema.org/","dcterms":"http://purl.org/dc/terms/"},"@type":"NGO","@id":"https://api.ai-analytics.org/nonprofit/431967537#org","identifier":[{"@type":"PropertyValue","propertyID":"EIN","value":"431967537"}],"name":"CHARLES RIVER SINFONIETTA","legalName":"CHARLES RIVER SINFONIETTA","address":{"@type":"PostalAddress","streetAddress":"58 UNION ST","addressLocality":"MILLIS","addressRegion":"MA","postalCode":"02054-1247","addressCountry":"US"},"foundingDate":"2003-07-01","nonprofitStatus":"Public charity / private foundation","dcterms:type":"Corporation","sameAs":["https://projects.propublica.org/nonprofits/organizations/431967537","https://apps.irs.gov/app/eos/displayAll.do?dispatchMethod=displayAllInfo&ein1=431967537"],"isAccessibleForFree":true,"license":"https://creativecommons.org/publicdomain/zero/1.0/","_source":{"data_provider":"AI Analytics","data_provider_url":"https://api.ai-analytics.org","license":"https://creativecommons.org/publicdomain/zero/1.0/","primary_source":"https://www.irs.gov/charities-non-profits/exempt-organizations-business-master-file-extract","generated_at":"2026-08-04T08:36:46.053Z"}}