Chicago Office
Day Translations, Inc.
Serving Chicago & Cook CountyAvailable 24/7 across the MidwestGet directions

From the Loop’s Fortune 500 HQs to Chicago’s Polish, Spanish, and Mandarin neighborhoods — certified translation, on-site interpreting, and Cook County court-ready language services in 500+ languages, on ISO-certified workflows, with same-day rush when deadlines can’t wait.
Trusted across regulated industries
Featured Chicago Report
Chicago boasts the largest Polish population outside Warsaw, and over 1.4 million residents speak a language other than English at home. We walked the city's most vibrant immigrant corridors to understand the true scale of translation demand in the Windy City.
To understand Chicago is to understand its neighborhoods. This is not a monolith of steel and glass, but a sprawling mosaic of enclaves, each with its own distinct linguistic rhythm. According to the U.S. Census Bureau’s American Community Survey, Chicago is a city where over 1.4 million residents speak a non-English language at home. It is famously home to the largest Polish population outside of Warsaw, but that is merely the beginning of the story.
From the bustling avenues of the South Side to the dense commercial strips of the North Side, the demand for professional translation services in Chicago is not just a business requirement — it is the infrastructure that keeps the city functioning. Every day, thousands of documents, conversations, and transactions require a translator to bridge the gap between communities and the broader global economy.
Over 1.4 million Chicagoans speak a non-English language at home — and the city is home to the largest Polish community outside Warsaw.
Walking down 18th Street in Pilsen, the air is thick with the scent of fresh tamales and the sound of Spanish. For decades, Pilsen has been the cultural and commercial epicenter for Chicago’s Mexican-American community. Vibrant murals tell stories of migration, struggle, and triumph — a visual testament to the neighborhood’s rich heritage.
In Pilsen, Spanish is the primary mode of commerce. From family-owned panaderías to specialized manufacturing workshops, businesses operate seamlessly in Spanish. When these businesses interact with the broader Chicago economy, contracts, employee handbooks, and safety manuals must be translated with absolute accuracy. This is where certified translation services step in.
Pilsen residents also frequently require USCIS-accepted certified translations for immigration proceedings — birth certificates, marriage licenses, and legal affidavits. The stakes are high, and the reliance on professional linguists is absolute.

Taking the Red Line down to Cermak-Chinatown transports you to one of the most dynamic, rapidly growing Chinatowns in North America. Unlike many other historic Chinatowns that are shrinking, Chicago’s is expanding — fueled by new waves of immigration and robust local investment.
The linguistic landscape is complex. While Cantonese was historically dominant, the influx of new immigrants has brought a surge in Mandarin speakers, alongside regional dialects like Taishanese and Fujianese. Medical facilities serving the Chinatown community must navigate these nuances daily, ensuring patients receive accurate diagnoses and treatment plans regardless of dialect.
Providing HIPAA-compliant medical translations is non-negotiable for clinics and hospitals operating in and around Chinatown. From patient intake forms to real-time interpretation during complex consultations, the role of the medical translator is life-saving.

Farther north, Devon Avenue in West Ridge offers a sensory explosion. This corridor is the undisputed hub of Chicago’s South Asian community. Within a few blocks, you can hear Hindi, Urdu, Gujarati, Bengali, and Punjabi.
Businesses on Devon Avenue are deeply connected to global supply chains, importing goods directly from India, Pakistan, and Bangladesh. This international trade requires meticulous documentation — customs declarations, shipping manifests, and vendor contracts.
According to the Migration Policy Institute, over 35% of the foreign-born population in the Chicago metropolitan area arrived after 2010, driving a continuous and evolving need for legal translation and interpretation services across dozens of South Asian dialects.
If Devon Avenue is the crossroads of South Asia, Albany Park is the crossroads of the world. Often cited as one of the most diverse neighborhoods in the entire United States, Albany Park is home to significant populations from Latin America, the Middle East, Eastern Europe, and Southeast Asia.
The local public school system faces the monumental task of educating students who collectively speak over 40 languages at home. Schools must translate individualized education programs (IEPs), disciplinary policies, and parent-teacher communications into languages ranging from Arabic and Tagalog to Romanian and Gujarati.
Estimated non-English speakers across Chicago's most linguistically distinct neighborhoods — illustrating the localized demand for specific translation services.
Population estimates in thousands
Beyond the neighborhood level, Chicago's macroeconomic engines drive massive demand for specialized language services. The city's industrial profile — anchored by manufacturing, a world-class medical sector, and a busy immigration court system — requires technical translation capabilities far beyond basic conversational fluency.
Chicago has long been a powerhouse of American manufacturing, and today this sector is highly globalized. Local manufacturers export heavy machinery, processed foods, and chemical products worldwide, necessitating the translation of technical manuals, engineering schematics, and safety data sheets into dozens of languages. To ensure workplace safety and compliance with OSHA regulations, companies must also provide training materials in the native languages of their employees, particularly Spanish and Polish.
With institutions like Northwestern Memorial Hospital and the University of Chicago Medical Center, Chicago is a global destination for healthcare. Ensuring all medical translations are HIPAA compliant is essential. From clinical trial documentation to patient consent forms, the accuracy of these translations directly impacts patient outcomes and institutional liability.
Chicago hosts one of the busiest immigration courts in the United States, processing thousands of cases each year. Asylum applications, evidentiary documents, and personal testimonies must be translated flawlessly. The legal sector relies on ATA-certified translators to ensure that the nuances of legal terminology are accurately conveyed across language barriers.
As Chicago continues to evolve, its linguistic landscape will undoubtedly shift and expand. New waves of immigration will bring new languages and dialects, further enriching the city's cultural tapestry. From the bustling streets of Pilsen to the high-tech corridors of the medical district, the ability to communicate across language barriers will remain a fundamental driver of Chicago's success.
Industries
The work we deliver across Chicago is shaped by the city’s biggest engines and the regulated, deadline-bound environments they operate in.
The Loop's Fortune 500 HQs, banks, and global advisory firms — investor decks, KYC files, prospectuses, and internal communications moving on disclosure timelines.
Technical manuals, engineering schematics, and OSHA-compliant safety training in Spanish, Polish, and other workforce languages — for Chicago's globalized manufacturing base.
Patient consents, clinical trial documentation, IRB protocols, and on-site medical interpreters — HIPAA-aligned, for Chicago's research hospitals and community clinics.
Court-certified Spanish, Polish, Mandarin, and Arabic interpreters for civil, criminal, and immigration cases — plus certified translations of evidentiary materials.
Simultaneous interpretation booths and equipment for McCormick Place trade shows, conferences, and corporate events across the Chicago metro.
Translation and interpreting for community organizations serving Polish, Spanish, Mandarin, and South Asian neighborhoods across Chicago's 77 community areas.
How we work
Files received over encrypted transfer; mapped against Cook County and U.S. federal court calendars, OSHA workforce-language requirements, and any FDA-IND submission window. Glossary aligned with Day's Chicago domain bank — Polish, Spanish, and Mandarin court terminology, McCormick Place event lexicons, manufacturing safety vocabulary.
Court-certified Polish, Spanish, or Mandarin interpreters dispatched for Cook County and federal hearings; ISO 17100-certified technical translators assigned to engineering schematics and OSHA training; HIPAA-aligned medical linguists routed to Northwestern Memorial and U-Chicago hospital workflows; conference-grade simul teams for McCormick Place and Hyatt Regency.
Signed Statement of Accuracy, bilingual PDF formatted for Cook County clerk submission or U.S. federal court e-filing, OSHA workforce-language compliance pack for plant deployment, and on-site interpreter dispatch when the hearing date demands it. Apostille and notarization handled in-house when the receiving authority requires it.
Dedicated linguist pools
Brand-voice memory across years
Encrypted file transfer
Role-based access · signed NDAs
99.9% accuracy rate
Across 50,000+ clients served
Why Chicago
When timelines collapse and a single document can shift a hearing, a closing, or a discharge — these are the operational realities the city demands, and what we set up our Chicago work around.
On-site interpreters dispatched across Cook County, the Loop, McCormick Place, and the suburbs for hearings, hospital escalations, and executive meetings.
Certified translations formatted for USCIS packets and Cook County and U.S. federal court submissions — with signed Statements of Accuracy.
Court-certified Spanish, Polish, Mandarin, and Arabic interpreters for civil, criminal, immigration, depositions, and arbitration proceedings.
Overnight, weekend, and holiday coverage for filings and clinical communications that don't respect office hours.
Legal, medical, and finance documents routed through secure, role-based workflows with signed NDAs and audit logs.
ISO 17100-certified technical translation for engineering schematics, safety data sheets, and OSHA-compliant workforce training materials.
Services
Certified translations formatted for USCIS packets and Cook County / U.S. federal court submissions — with signed Statements of Accuracy.
Court-certified Spanish, Polish, Mandarin, and Arabic interpreters for civil, criminal, and immigration cases across Cook County and federal courts.
Patient consents, discharge instructions, IRB protocols, and clinical trial documentation — under HIPAA-aligned PHI workflows.
Simultaneous interpretation booths and equipment for Chicago's largest trade shows, plus on-site, video remote, and 24/7 phone interpreting in 500+ languages.
ISO 17100-certified technical translation for Chicago manufacturers — engineering schematics, safety data sheets, and OSHA training materials.
Legal, medical, financial, and technical document translation for Chicago clients — investor communications, contracts, and global rollout localization.
Credentials
Verified · third-party audited
Get in touch
Multiple ways to reach us. Choose what works best for you.
Chicago Office
Our online form is the easiest and fastest way to submit your documents.
Email your scanned documents to [email protected]
Fax your documents to 1-800-856-2759
Mail or courier to Day Translations, Inc., Serving Chicago & Cook County, Available 24/7 across the Midwest.
FAQ
Why Day Translations
Since 2007 we’ve been the linguistic operations layer for Cook County courthouses, the Loop’s banks and Fortune 500 HQs, Northwestern Memorial and the University of Chicago hospital systems, and the manufacturing belt running from Cicero to Bedford Park. Court-certified Polish, Spanish, and Mandarin interpreters dispatched within hours; ISO 17100 technical translators paired with industry-specific glossaries; HIPAA-aligned PHI workflows for clinical trial sponsors and community hospitals.
That same Chicago operations layer runs on ISO 17100 quality and ISO 27001 security with HIPAA-aligned protocols and a SOC-2 readiness program — calibrated to the city’s actual working day. A McCormick Place trade show in the morning, a federal courthouse motion at the Dirksen building in the afternoon, and a Northwestern Memorial discharge consult that evening all route through the same audit-ready vendor without you switching providers mid-week.
Get started
Quote requests return quickly. Standard translation begins the same day. Rush windows confirmed by a project manager as soon as we have your requirements.
Nearby metros, the languages your market speaks, and the industries we know best — all under one roof.