In the Philippine construction and consultancy industry, due diligence is not merely a procedural formality—it is a critical legal safeguard. Engaging with an unregistered entity can lead to voidable contracts, inability to seek judicial relief in breach of contract cases, and exposure to fraudulent schemes.

To verify if a corporation or partnership is legitimately registered with the Securities and Exchange Commission (SEC), the following legal and administrative framework applies.

1. Use of the SEC CheckApp and Online Portal

The primary and most efficient method for verification is the SEC CheckApp (available on mobile) and the SEC Express System.

Company Search: Through the SEC’s official database, you can search for a firm by its registered name or company registration number.
Status Indicators: A firm may appear in the records, but its status is equally important. Look for markers such as "Active," "Revoked," or "Suspended." A revoked registration means the entity has lost its juridical personality and cannot legally enter into new business contracts.

2. Requesting a Certificate of Good Standing

While a search confirms existence, a Certificate of Good Standing confirms compliance. This document is issued by the SEC to certify that a corporation is current with its reportorial requirements, specifically:

General Information Sheet (GIS): Filed annually, detailing current directors, officers, and stockholdings.
Audited Financial Statements (AFS): Filed annually to demonstrate financial transparency.

For consultancy firms, the GIS is vital to verify if the "consultants" or directors listed possess the legal capacity and authority to represent the firm.

3. Analysis of the Articles of Incorporation (AOI)

Registration with the SEC does not grant a firm "blanket authority" to engage in any business. Under the Revised Corporation Code, a corporation's powers are limited by its Primary Purpose clause in its AOI.

Construction Firms: The AOI must explicitly state that the firm is organized for the purpose of "general construction," "civil engineering," or related infrastructure works.
Consultancy Firms: The AOI should specify the nature of the consultancy (e.g., technical, management, or environmental).
Ultra Vires Acts: If a firm registered solely for "Consultancy" enters into a contract for "Construction," that act may be considered ultra vires (beyond its powers), potentially rendering the contract unenforceable.

4. Inter-Agency Verification: The PCAB License

For construction firms, SEC registration is only the first step. Under Republic Act No. 4566 (The Licensing Law), no entity may engage in the business of contracting without a license from the Philippine Contractors Accreditation Board (PCAB).

The Distinction: The SEC grants juridical personality (the right to exist as a company), but the PCAB grants the authority to operate as a contractor.
Verification Step: Cross-reference the SEC-registered name with the PCAB’s list of licensed contractors. If a firm is SEC-registered but lacks a PCAB license, it cannot legally perform construction works in the Philippines.

5. Professional Regulation Commission (PRC) Compliance

Consultancy firms often provide "Professional Services" (Engineering, Architecture, etc.). Under Philippine law, only natural persons (licensed professionals) can practice a profession.

Partnerships vs. Corporations: Professional consultancy is typically organized as a General Professional Partnership (GPP).
Corporate Practice: If organized as a corporation, the firm must comply with specific professional laws (e.g., the Architecture Act or the Civil Engineering Law) which may require the firm itself to be registered with the PRC Boards as a corporate practice.

6. Physical Verification and the SEC Office

If online systems are inconclusive, a "Request for Document Retrieval" can be made at the SEC Main Office or any Extension Office. You may request certified true copies of:

Certificate of Incorporation
Latest General Information Sheet
Articles of Incorporation and By-Laws

Summary Checklist for Verification

Step	Action	Objective
1	SEC Online Search	Confirm the entity's existence and Registration Number.
2	Check Status	Ensure the registration is "Active" and not "Revoked."
3	Verify Purpose	Ensure "Construction" or "Consultancy" is in the Primary Purpose.
4	Review GIS	Identify the current authorized signatories and directors.
5	Cross-Check PCAB	(For Construction) Confirm a valid and current Contractor's License.
6	Verify Professionals	(For Consultancy) Ensure the consultants are PRC-licensed.