Custos Lex APC

Clear Advice.
Confident Public Market Decisions.

Custos Lex APC is a California-based law firm focused on capital markets, business, and commercial law. We advise issuers, underwriters, and growth-stage companies on IPOs, SEC filings, and complex transactions throughout the business lifecycle.

View practice focus
Focus Capital Markets, IPOs & Business Law
Approach Clear, execution-focused legal advice
CAPITAL MARKETS & BUSINESS COUNSEL

Strategic legal counsel for public and private companies.

We advise issuers, underwriters, and growth-stage businesses on capital markets transactions, corporate matters, and intellectual property issues, delivering clear, execution-focused legal guidance across complex regulatory and commercial environments.

Lifecycle Coverage
Formation → Growth → IPO & Public Company → Exit
Corporate structuring, securities offerings, SEC compliance, transactions, and dispute resolution across each stage of the business lifecycle.
Clients We Advise
Issuers, Underwriters, Companies, Founders, Investors
From early-stage ventures to public companies and financial institutions.
Capital Markets & IPO Corporate & Commercial Intellectual Property
Custos Lex APC
Focused on clarity, execution, and long-term value.
About us

Custos Lex APC is a California-based law firm focused on capital markets, business, and commercial law.

We advise issuers, underwriters, and growth-stage companies on IPOs, SEC filings, and complex transactions throughout the business lifecycle—from early-stage formation and structuring, to initial public offerings (IPOs), securities compliance, complex transactions, and dispute resolution.

Our firm represents both issuers and underwriters in capital markets transactions, with particular experience in U.S. securities offerings and SEC filings, including registration statements and ongoing reporting obligations.

Our practice emphasizes practical, business‑oriented solutions. We work closely with our clients to understand their commercial objectives and deliver clear, efficient legal advice that supports informed decision‑making.

Custos Lex APC is committed to professionalism, responsiveness, and long‑term client relationships.

Practice focus

Capital markets, business & commercial practice areas.

We support clients across capital markets, corporate and commercial disciplines, with particular focus on IPOs, securities compliance, transactions, and intellectual property.

IPO

Capital Markets & IPOs

  • Initial Public Offerings (IPOs)
  • Representation of Issuers and Underwriters
  • SEC Filings and Disclosure Compliance (including registration statements and periodic reporting)
  • Securities Regulatory Matters
CORP

Corporate & Commercial Law

  • Business Formation & Structuring
  • Mergers & Acquisitions
  • Contracts & Commercial Transactions
  • Regulatory & General Compliance
IP

Intellectual Property

  • Intellectual Property Strategy & Protection
  • Trademark and Copyright Matters
  • IP-Related Commercial Transactions
  • IP Risk Management in Business Operations
Our approach

Clear, commercially practical, and aligned with our clients' business goals.

We believe effective legal advice should be clear, commercially practical, and aligned with our clients' business goals.

Our role is not only to identify legal and regulatory risks, but also to help clients manage them in a way that supports growth, execution, and long-term value creation.

We work closely with clients to understand their commercial objectives and deliver practical guidance that enables informed decision-making.