Interpreters who speak the Spanish of Spain for depositions, hearings and hospital visits nationwide, and certified translation of Spanish civil records with their apostilles.
Prism Linguistics provides Castilian interpreters, the Spanish of Spain rather than of Latin America, for depositions, court hearings, medical appointments and USCIS interviews anywhere in the United States, in person, by phone or by video, together with certified English translation of Registro Civil certificates, DNI cards, criminal record certificates and their apostilles.
Last reviewed September 2, 2026 by Sarah J, Prism Linguistics
Almost every Spanish interpreter in this country learned the language in Mexico, Central America or the Caribbean, and for most work that is exactly right. This page is for the other case: a client, witness or patient from Spain who wants to be heard in the Spanish they grew up with. Our office is in New York and the interpreters are spread across the country, so an in-person job goes to someone based near you and a phone or video booking can usually be filled the same day.
The Spain-born population in the United States is small, around 120,000 people on 2021 figures, and overwhelmingly settled: the great majority of Hispanics of Spanish origin are already citizens. So the person who books a Castilian interpreter is seldom an immigrant in a queue. It is a Spanish executive being deposed in a commercial dispute, a visiting parent in an emergency room, or an academic who wants every clause of an oath rendered in her own register.
Mutual intelligibility is not the same as the right interpreter. A Spaniard and a Mexican interpreter will understand one another perfectly well over coffee. On a transcript the seams show: the vosotros verb forms, the Castilian distinction between s and the th-sound of c and z, and an everyday vocabulary that diverges word by word. One verb, neutral in Madrid and obscene in most of Latin America, has derailed more than one deposition. For a Spanish national in a deposition, a custody matter or a medical history we assign an interpreter from Spain, or one who has lived and worked there long enough to speak it without translating in their head.
Spanish is the one language for which every state court system certifies interpreters, and that is good news for a Spaniard in court: the certification exists, and the question is only whether the certified interpreter also carries the register of Spain. We match both. Tell us the court, the county and the case type, and we place a Castilian interpreter who holds the credential that bench expects. We work for courts, attorneys and law firms directly. We are a private agency, not a court-appointed vendor, and we say so rather than imply otherwise.
Depositions are where most of our Castilian requests originate, usually from a US law firm with a Spanish witness in a cross-border commercial, maritime or patent matter. The witness is fluent, educated and precise, and will notice the moment an interpreter reaches for a Latin American word. That noticing costs trust and time. We send an interpreter from Spain who is at home in legal Spanish as it is written in Madrid, and for remote depositions we run video with a second channel for counsel.
A federally funded hospital must provide a Spanish interpreter at no cost to the patient, and for a Spaniard that interpreter will almost always be Latin American. Most of the time it is fine. It stops being fine with an elderly visitor from Galicia or Andalusia whose speech is regional to begin with, or in a psychiatric assessment where idiom carries the diagnosis. In those cases we send a Castilian interpreter in person; for a routine consent conversation or a specialist review, video does the job and can be arranged quickly.
Spanish civil records come in three versions and applicants routinely send the wrong one. The Registro Civil will issue a literal certificate, an extract, or a multilingual extract meant for use abroad, and only the literal reproduces the complete entry with its marginal annotations, where a name change, a marriage or an acquired nationality is recorded. Adjudicators read those margins. Order the literal, then have it translated. The rest of a Spanish file is the DNI, a certificate of criminal record from the Ministry of Justice's central register, and academic transcripts, each usually carrying an apostille from a regional Tribunal Superior de Justicia or from the Ministry itself. We translate the apostille as part of the document, never as an afterthought. Two things a Latin American translator can miss. Certificates from Catalonia, Galicia and the Basque Country are often bilingual, and an entry may sit only in the co-official column. And a Spaniard keeps two surnames for life; both go on the translation, spelled to the passport, with any variant noted. Every translation carries a signed Certificate of Translation Accuracy. Details at certified translation.
Tell us the date, the city and the setting, or send a clear scan of the document. We reply with a fixed price and, for interpreting, a named linguist. Call +1 (833) 282 8883, email info@prismlinguistics.com, or use the quote form and you will hear back within 60 minutes during business hours.
Our only office is in New York, and our Castilian interpreters work nationwide. For in-person work we assign someone based in or near the city. These are the areas where Castilian work is concentrated; the full list of 288 cities is below it.
Prism Linguistics is rated 4.6 out of 5 across 67 client reviews for its interpreting and translation work in the United States. That is the company-wide figure; we do not publish a separate rating per language because there is no honest way to measure one. If a Castilian assignment ever falls short, tell us and we put it right.