# BlackBox Startup Law > Cross-border legal and tax counsel for venture-backed startups in the US–LATAM corridor. Nine integrated practices run as one GRC (governance, risk & compliance) engine, from offices in Mexico City and San Francisco. BlackBox Startup Law advises founders, angels, VC firms and funds building across the United States, Mexico and Brazil. Working languages: English and Spanish. Founded by Víctor Aguirre-López and Carlos Aguerrebere. ## Core pages - [Home](https://www.blackboxmx.com/): Overview of the Legal & Tax GRC engine. - [Our Practices](https://www.blackboxmx.com/OurPractices.dc.html): Index of all nine practice areas. - [Team](https://www.blackboxmx.com/Team.dc.html): Founders and cross-border bench. - [Contact](https://www.blackboxmx.com/Contact.dc.html): Offices in Mexico City (Polanco) and San Francisco (Union Square). ## Practice areas - [Artificial Intelligence](https://www.blackboxmx.com/AI.dc.html): AI governance across the EU AI Act, US and Mexico. - [Startups — Incorporation & Structuring](https://www.blackboxmx.com/Startups.dc.html): Delaware, Cayman, Mexico and Brazil entities. - [Financing & M&A](https://www.blackboxmx.com/Financing.dc.html): Term-sheet to closing; SAFEs, priced rounds, cross-border M&A. - [IP & Trademarks](https://www.blackboxmx.com/IPTrademarks.dc.html): Cross-border protection of intangible assets. - [Labor & Employment](https://www.blackboxmx.com/Labor.dc.html): Employment, payroll and labor litigation. - [Immigration](https://www.blackboxmx.com/Immigration.dc.html): Corporate visas and relocation for Mexico and Brazil. - [Litigation](https://www.blackboxmx.com/Litigation.dc.html): Corporate, administrative and constitutional (Amparo) litigation. - [Banking, Finance & AML](https://www.blackboxmx.com/BankingFinance.dc.html): Banking regulation and complex financing. - [Tax Compliance](https://www.blackboxmx.com/TaxCompliance.dc.html): Domestic + international compliance for foreign-owned Mexican subsidiaries. ## Contact - Mexico City: Campos Elíseos 403, Col. Polanco II Sección, 11530 CDMX. +52 55 6728 1929 - San Francisco: 166 Geary St. Suite 1500, CA 94108. +1 646 544 8029 - Email: aguirre@blackboxmx.com