# HAMAGUCHI LEARNING AND DEVELOPMENT, LLC | USBL > HAMAGUCHI LEARNING AND DEVELOPMENT, LLC (Connecticut LLC, #1312921): Active. Filed June 19, 2019. Registered agent: PATRICIA M. HAMAGUCHI. Source page: https://usbusinesslookup.com/company/ct/watertown/hamaguchi-learning-and-development-llc-1312921 Canonical page: https://usbusinesslookup.com/company/ct/watertown/hamaguchi-learning-and-development-llc-1312921 Scope: public directory information, not independent verification. Reported dates do not guarantee current operations. ## Page content Home Connecticut Watertown HAMAGUCHI LEARNING AND DEVELOPMENT, LLC LLC · Watertown, CT ## HAMAGUCHI LEARNING AND DEVELOPMENT, LLC LLC in Watertown, Connecticut · Document #1312921 · Active Record reference date: October 20, 2026 Details may be incomplete or outdated. “Not reported” means a usable value is unavailable. ### About this record HAMAGUCHI LEARNING AND DEVELOPMENT, LLC is an active Connecticut limited liability company filed on June 19, 2019 (document 1312921). Its registered agent is PATRICIA M. HAMAGUCHI. ### Registration details Status: Active Record reference date: October 20, 2026 Entity type: Limited Liability Company Filed: June 19, 2019 Reported filing date Document number: 1312921 Registration jurisdiction: Connecticut Principal city + ZIP: Watertown, CT 06795 Registered agent: PATRICIA M. HAMAGUCHI Industry (NAICS): All Other Professional, Scientific, and Technical Services (541990) · null Address: 48 FARM CIRCLE, WATERTOWN, CT, 06795 ### Registered agent and officers Names and roles are reported on filings; matching names do not establish identity or ownership. Registered agent: PATRICIA M. HAMAGUCHI Principal: PATRICIA M. HAMAGUCHI ### What this status means / annual report due date Connecticut reports an active registration. This does not by itself establish good standing, licensing, ownership or that the business is currently trading. Connecticut LLC annual reports are filed January 1 through March 31, starting in the year after registration. Other entity types can have different reporting schedules. ### Additional business details View historical details and available fields Historical values may differ from the registration summary. Record reference date: 2026-11-02 ### Directory details ### Names Legal: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Entity Type: Limited liability company ### Registration Status: Active Number: 1312921 Citizenship: Domestic Formation Place: CT Home Jurisdiction: CT ### Dates Annual Report Due: 2027-03-31 Registration: 2019-06-19 ### Addresses Business · Street 1: 48 FARM CIRCLE Business · City: Watertown Business · Country: US Business · Postal Code: 06795 Business · Region: CT Mailing · Text: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### Contacts Business Email: pattimcham@gmail.com ### Self Reported Characteristics Woman Owned: Yes Veteran Owned: No Minority Owned: No Disability Owned: No Lgbtqi Owned: No ### Industry Naics Code: All Other Professional, Scientific, and Technical Services (541990) Naics Sub Code: 541990 ### Additional reported values ### Other reported details Id: 001t000000WoROxAAN Business Type: LLC Status: Active Account Number: 1312921 Annual Report Due Date: 03/31/2027 Citizenship: Domestic Date Registration: 06/19/2019 Formation Place: CT Woman Owned Organization: true Veteran Owned Organization: false Minority Owned Organization: false Org Owned by Person s with disabilities: false CREATE DT: 2026-11-02 00:18:59.7300000 ### Names and reported roles Name: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Addresses and locations Business Street: 48 FARM CIRCLE Business City: WATERTOWN Business Country: United States Business ZIP: 06795 Business State: CT State or Territory Formation: Connecticut ### Mailing information Business Email Address: pattimcham@gmail.com Mailing Address: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### IRS reported fields and codes Organization is LGBTQI Owned: false ### Industry and classification NAICS Code: All Other Professional, Scientific, and Technical Services (541990) NAICS Sub Code: 541990 Record reference date: 2026-10-24 ### Directory details ### Names Legal: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Entity Type: Limited liability company ### Registration Status: Active Number: 1312921 Citizenship: Domestic Formation Place: CT Home Jurisdiction: CT ### Dates Annual Report Due: 2027-03-31 Registration: 2019-06-19 ### Addresses Business · Street 1: 48 FARM CIRCLE Business · City: Watertown Business · Country: US Business · Postal Code: 06795 Business · Region: CT Mailing · Text: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### Contacts Business Email: pattimcham@gmail.com ### Self Reported Characteristics Woman Owned: Yes Veteran Owned: No Minority Owned: No Disability Owned: No Lgbtqi Owned: No ### Industry Naics Code: All Other Professional, Scientific, and Technical Services (541990) Naics Sub Code: 541990 ### Additional reported values ### Other reported details Id: 001t000000WoROxAAN Business Type: LLC Status: Active Account Number: 1312921 Annual Report Due Date: 03/31/2027 Citizenship: Domestic Date Registration: 06/19/2019 Formation Place: CT Woman Owned Organization: true Veteran Owned Organization: false Minority Owned Organization: false Org Owned by Person s with disabilities: false CREATE DT: 2026-10-24 00:18:44.4733333 ### Names and reported roles Name: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Addresses and locations Business Street: 48 FARM CIRCLE Business City: WATERTOWN Business Country: United States Business ZIP: 06795 Business State: CT State or Territory Formation: Connecticut ### Mailing information Business Email Address: pattimcham@gmail.com Mailing Address: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### IRS reported fields and codes Organization is LGBTQI Owned: false ### Industry and classification NAICS Code: All Other Professional, Scientific, and Technical Services (541990) NAICS Sub Code: 541990 Record reference date: 2026-10-23 ### Directory details ### Names Legal: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Entity Type: Limited liability company ### Registration Status: Active Number: 1312921 Citizenship: Domestic Formation Place: CT Home Jurisdiction: CT ### Dates Annual Report Due: 2027-03-31 Registration: 2019-06-19 ### Addresses Business · Street 1: 48 FARM CIRCLE Business · City: Watertown Business · Country: US Business · Postal Code: 06795 Business · Region: CT Mailing · Text: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### Contacts Business Email: pattimcham@gmail.com ### Self Reported Characteristics Woman Owned: Yes Veteran Owned: No Minority Owned: No Disability Owned: No Lgbtqi Owned: No ### Industry Naics Code: All Other Professional, Scientific, and Technical Services (541990) Naics Sub Code: 541990 ### Additional reported values ### Other reported details Id: 001t000000WoROxAAN Business Type: LLC Status: Active Account Number: 1312921 Annual Report Due Date: 03/31/2027 Citizenship: Domestic Date Registration: 06/19/2019 Formation Place: CT Woman Owned Organization: true Veteran Owned Organization: false Minority Owned Organization: false Org Owned by Person s with disabilities: false CREATE DT: 2026-10-23 00:18:44.6833333 ### Names and reported roles Name: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Addresses and locations Business Street: 48 FARM CIRCLE Business City: WATERTOWN Business Country: United States Business ZIP: 06795 Business State: CT State or Territory Formation: Connecticut ### Mailing information Business Email Address: pattimcham@gmail.com Mailing Address: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### IRS reported fields and codes Organization is LGBTQI Owned: false ### Industry and classification NAICS Code: All Other Professional, Scientific, and Technical Services (541990) NAICS Sub Code: 541990 Record reference date: 2026-10-22 ### Directory details ### Names Legal: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Entity Type: Limited liability company ### Registration Status: Active Number: 1312921 Citizenship: Domestic Formation Place: CT Home Jurisdiction: CT ### Dates Annual Report Due: 2027-03-31 Registration: 2019-06-19 ### Addresses Business · Street 1: 48 FARM CIRCLE Business · City: Watertown Business · Country: US Business · Postal Code: 06795 Business · Region: CT Mailing · Text: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### Contacts Business Email: pattimcham@gmail.com ### Self Reported Characteristics Woman Owned: Yes Veteran Owned: No Minority Owned: No Disability Owned: No Lgbtqi Owned: No ### Industry Naics Code: All Other Professional, Scientific, and Technical Services (541990) Naics Sub Code: 541990 ### Additional reported values ### Other reported details Id: 001t000000WoROxAAN Business Type: LLC Status: Active Account Number: 1312921 Annual Report Due Date: 03/31/2027 Citizenship: Domestic Date Registration: 06/19/2019 Formation Place: CT Woman Owned Organization: true Veteran Owned Organization: false Minority Owned Organization: false Org Owned by Person s with disabilities: false CREATE DT: 2026-10-22 00:19:26.3100000 ### Names and reported roles Name: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Addresses and locations Business Street: 48 FARM CIRCLE Business City: WATERTOWN Business Country: United States Business ZIP: 06795 Business State: CT State or Territory Formation: Connecticut ### Mailing information Business Email Address: pattimcham@gmail.com Mailing Address: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### IRS reported fields and codes Organization is LGBTQI Owned: false ### Industry and classification NAICS Code: All Other Professional, Scientific, and Technical Services (541990) NAICS Sub Code: 541990 Record reference date: 2026-10-21 ### Directory details ### Names Legal: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Entity Type: Limited liability company ### Registration Status: Active Number: 1312921 Citizenship: Domestic Formation Place: CT Home Jurisdiction: CT ### Dates Annual Report Due: 2027-03-31 Registration: 2019-06-19 ### Addresses Business · Street 1: 48 FARM CIRCLE Business · City: Watertown Business · Country: US Business · Postal Code: 06795 Business · Region: CT Mailing · Text: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### Contacts Business Email: pattimcham@gmail.com ### Self Reported Characteristics Woman Owned: Yes Veteran Owned: No Minority Owned: No Disability Owned: No Lgbtqi Owned: No ### Industry Naics Code: All Other Professional, Scientific, and Technical Services (541990) Naics Sub Code: 541990 ### Additional reported values ### Other reported details Id: 001t000000WoROxAAN Business Type: LLC Status: Active Account Number: 1312921 Annual Report Due Date: 03/31/2027 Citizenship: Domestic Date Registration: 06/19/2019 Formation Place: CT Woman Owned Organization: true Veteran Owned Organization: false Minority Owned Organization: false Org Owned by Person s with disabilities: false CREATE DT: 2026-10-21 00:19:17.2933333 ### Names and reported roles Name: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Addresses and locations Business Street: 48 FARM CIRCLE Business City: WATERTOWN Business Country: United States Business ZIP: 06795 Business State: CT State or Territory Formation: Connecticut ### Mailing information Business Email Address: pattimcham@gmail.com Mailing Address: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### IRS reported fields and codes Organization is LGBTQI Owned: false ### Industry and classification NAICS Code: All Other Professional, Scientific, and Technical Services (541990) NAICS Sub Code: 541990 Record reference date: 2026-10-20 ### Directory details ### Names Legal: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Entity Type: Limited liability company ### Registration Status: Active Number: 1312921 Citizenship: Domestic Formation Place: CT Home Jurisdiction: CT ### Dates Annual Report Due: 2027-03-31 Registration: 2019-06-19 ### Addresses Business · Street 1: 48 FARM CIRCLE Business · City: Watertown Business · Country: US Business · Postal Code: 06795 Business · Region: CT Mailing · Text: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### Contacts Business Email: pattimcham@gmail.com ### Self Reported Characteristics Woman Owned: Yes Veteran Owned: No Minority Owned: No Disability Owned: No Lgbtqi Owned: No ### Industry Naics Code: All Other Professional, Scientific, and Technical Services (541990) Naics Sub Code: 541990 ### Additional reported values ### Other reported details Id: 001t000000WoROxAAN Business Type: LLC Status: Active Account Number: 1312921 Annual Report Due Date: 03/31/2027 Citizenship: Domestic Date Registration: 06/19/2019 Formation Place: CT Woman Owned Organization: true Veteran Owned Organization: false Minority Owned Organization: false Org Owned by Person s with disabilities: false CREATE DT: 2026-10-20 00:19:20.2500000 ### Names and reported roles Name: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Addresses and locations Business Street: 48 FARM CIRCLE Business City: WATERTOWN Business Country: United States Business ZIP: 06795 Business State: CT State or Territory Formation: Connecticut ### Mailing information Business Email Address: pattimcham@gmail.com Mailing Address: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### IRS reported fields and codes Organization is LGBTQI Owned: false ### Industry and classification NAICS Code: All Other Professional, Scientific, and Technical Services (541990) NAICS Sub Code: 541990 Record reference date: 2026-10-18 ### Directory details ### Names Legal: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Entity Type: Limited liability company ### Registration Status: Active Number: 1312921 Citizenship: Domestic Formation Place: CT Home Jurisdiction: CT ### Dates Annual Report Due: 2027-03-31 Registration: 2019-06-19 ### Addresses Business · Street 1: 48 FARM CIRCLE Business · City: Watertown Business · Country: US Business · Postal Code: 06795 Business · Region: CT Mailing · Text: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### Contacts Business Email: pattimcham@gmail.com ### Self Reported Characteristics Woman Owned: Yes Veteran Owned: No Minority Owned: No Disability Owned: No Lgbtqi Owned: No ### Industry Naics Code: All Other Professional, Scientific, and Technical Services (541990) Naics Sub Code: 541990 ### Additional reported values ### Other reported details Id: 001t000000WoROxAAN Business Type: LLC Status: Active Account Number: 1312921 Annual Report Due Date: 03/31/2027 Citizenship: Domestic Date Registration: 06/19/2019 Formation Place: CT Woman Owned Organization: true Veteran Owned Organization: false Minority Owned Organization: false Org Owned by Person s with disabilities: false CREATE DT: 2026-10-18 00:20:12.4433333 ### Names and reported roles Name: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Addresses and locations Business Street: 48 FARM CIRCLE Business City: WATERTOWN Business Country: United States Business ZIP: 06795 Business State: CT State or Territory Formation: Connecticut ### Mailing information Business Email Address: pattimcham@gmail.com Mailing Address: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### IRS reported fields and codes Organization is LGBTQI Owned: false ### Industry and classification NAICS Code: All Other Professional, Scientific, and Technical Services (541990) NAICS Sub Code: 541990 Download directory record (JSON) ### All retained directory fields ### Other reported details Id: 15090307 Slug: hamaguchi-learning-and-development-llc-1312921 Entity type: Limited Liability Company Entity class: llc Is foreign: 0 Registry: CT Doc number: 1312921 Filed on: 2019-06-19 Status: Active Is active: 1 Domicile: CT Status known: 1 Observed at: 2026-10-21T07:22:48.934593+00:00 ### Addresses and locations State: CT City slug: watertown Address: 48 FARM CIRCLE, WATERTOWN, CT, 06795 Zip: 06795 Location state: CT ### Names and reported roles Name: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC City name: Watertown ### Industry and classification Naics code: All Other Professional, Scientific, and Technical Services (541990) ### Additional Connecticut registry details Linked through the registry’s business ID. Agents and principals are reported roles and do not establish beneficial ownership. Contact and residence addresses are labeled as reported. Record reference date: 2026-10-18. ### Registered and alternate business names Roles are shown as reported. Agents, officers and principals are not automatically owners. ### Business names Registered name: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Complete business master fields ### Other reported details Id: 001t000000WoROxAAN Business Type: LLC Status: Active Account Number: 1312921 Annual Report Due Date: 03/31/2027 Citizenship: Domestic Date Registration: 06/19/2019 Formation Place: CT Woman Owned Organization: true Veteran Owned Organization: false Minority Owned Organization: false Org Owned by Person s with disabilities: false CREATE DT: 2026-10-18 00:20:12.4433333 ### Names and reported roles Name: HAMAGUCHI LEARNING AND DEVELOPMENT, LLC ### Addresses and locations Business Street: 48 FARM CIRCLE Business City: WATERTOWN Business Country: United States Business ZIP: 06795 Business State: CT State or Territory Formation: Connecticut ### Mailing information Business Email Address: pattimcham@gmail.com Mailing Address: 48 FARM CIRCLE , ,WATERTOWN ,CT ,United States ,06795 ### IRS reported fields and codes Organization is LGBTQI Owned: false ### Industry and classification NAICS Code: All Other Professional, Scientific, and Technical Services (541990) NAICS Sub Code: 541990 ### Registered agents (1) ### Reported name and role Roles are shown as reported. Agents, officers and principals are not automatically owners. ### Registered agents Registered agent: PATRICIA M. HAMAGUCHI Find records rep [Excerpt limited; continue on the source page.] ## Related public pages - [Home](https://usbusinesslookup.com/) - [Businesses in Connecticut →](https://usbusinesslookup.com/new-businesses/ct) - [All Watertown filings →](https://usbusinesslookup.com/new-businesses/ct/watertown) - [PATRICIA M. 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