Founded in 1994, Castillo and Associates in Chula Vista is a multicultural market research and communications firm operating from Fenton Street in the 91914 ZIP code. The firm conducts focus-group moderation, strategic planning, and brand-positioning studies for clients targeting Hispanic and bilingual consumer segments, the same demographic served by commercial carriers such as Willy's Insurance Service Inc. Service lines include product-development research, online strategy, and cross-cultural communication campaigns that bridge English and Spanish-language media channels. That outreach methodology has supported public-health and social-service initiatives alongside community partners including South Bay Community Services. Research deliverables include bilingual survey instruments, conjoint-analysis reports, and ethnographic field studies calibrated to San Diego County's cross-border consumer corridor.