Corporate records and locations
Short answer: Sources disagree on where PHP Biotech is based: its website lists Southlake, Texas, its 2024 research paper lists Keller, Texas, and a Brazilian company with the PHP Biotech name is registered in Botucatu, São Paulo.[1][2][3] This wiki has not confirmed which is the headquarters, or where PHP Biotech International Inc. is incorporated.[4][5]
Where is PHP Biotech based?
| Place | Address as given | Where it appears |
|---|---|---|
| Southlake, Texas | 550 Reserve St. STE 190, Southlake, TX 76092 | Company website footer and contact page; dateline of the 18 September 2026 press release[1][6][7] |
| Keller, Texas | PHP Biotech International Inc., Keller, TX 76248 | Author affiliation in the April 2024 Molecules paper[2] |
| Botucatu, Brazil | Rodovia Gastão Dal Farra s/n, km 06, Jardim Aeroporto, Botucatu, SP 18605-525 | Registry address of PHP Biotech Pesquisa e Desenvolvimento S.A.[3] |
The chief executive’s biography says the company is headquartered in the Dallas–Fort Worth area.[8] Southlake and Keller are both in that area, while Botucatu is in Brazil. Because the sources differ and the company has not explained the difference, the headquarters is listed as unconfirmed.
What is the legal entity?
The company’s website copyright line and both patent applications name PHP Biotech International Inc.; the patent assignment record lists the assignee with the state “Texas”.[1][9][10] A search of the Texas Comptroller’s open list of active franchise tax permit holders on 4 October 2026 found no PHP Biotech entry.[4] The Texas Secretary of State’s SOSDirect service requires a paid account and the Delaware registry search uses a CAPTCHA, so neither was checked. The state of incorporation is an open question.
What does the Brazilian registry show?
Brazil’s federal tax registry lists PHP Biotech Pesquisa e Desenvolvimento S.A., CNPJ 40.622.810/0001-02, as active, opened on 29 January 2021, a privately held corporation (sociedade anônima fechada) whose main activity is experimental research and development in the physical and natural sciences.[3] Its officers include Moacyr Ramos Bighetti (president), Eduardo Franco Motti and João Marcelo Carucci de Souza (directors), and Kleber Oliveira Miranda, Oswaldo Bighetti Neto and Jorge Luiz Brasil Siqueira (board members).[3] No public document found states how this company relates to PHP Biotech International Inc.
Does PHP Biotech file with the SEC?
No filings for PHP Biotech were found in the SEC’s EDGAR company search or full-text search on 4 October 2026, including Form D notices.[5] No SEC registration was found.
How do I contact PHP Biotech?
The company website gives the email address contact@phpbiotech.com and a contact form, and lists the Southlake mailing address.[6][1] It does not list a phone number. The phone number printed in its September 2026 press releases, 555-555-5555, is a placeholder and should not be used.[7][11]
Frequently asked questions
Where is PHP Biotech headquartered?
Unconfirmed. The website says Southlake, Texas; a 2024 paper says Keller, Texas; a related-name company is registered in Botucatu, Brazil.
Where is PHP Biotech International Inc. incorporated?
Not confirmed. Patent records associate the assignee with Texas, but no Texas registry entry was found in the open data checked.
What is PHP Biotech's email address?
contact@phpbiotech.com, according to the company website.
See also
References
- ^ a b c d Home page. PHP Biotech International Inc. (phpbiotech.com). Retrieved 4 October 2026.
- ^ a b Bezerra P, Motti EF. “3-NAntC: A Potent Crotoxin B-Derived Peptide against the Triple-Negative MDA-MB-231 Breast Cancer Cell Line.” Molecules 2024;29(7):1646. doi:10.3390/molecules29071646. PMID 38611925. PubMed, U.S. National Library of Medicine. Retrieved 4 October 2026.
- ^ a b c d CNPJ 40.622.810/0001-02: PHP Biotech Pesquisa e Desenvolvimento S.A. (company registration record). Receita Federal do Brasil, via the BrasilAPI CNPJ service. Retrieved 4 October 2026.
- ^ a b “Active Franchise Tax Permit Holders” dataset, searched for “PHP Bio” (no match found). Texas Comptroller of Public Accounts, Texas Open Data Portal. Retrieved 4 October 2026.
- ^ a b EDGAR company and full-text search for “PHP Biotech” (no filings found). U.S. Securities and Exchange Commission. Retrieved 4 October 2026.
- ^ a b “Contact Us”. PHP Biotech International Inc. (phpbiotech.com). Retrieved 4 October 2026.
- ^ a b “PHP Biotech Identifies uPAR as the Cellular Entry Receptor for Its PHP53-nb Anti-Tumor Nanobody” (Southlake, Texas, 18 September 2026). PressAdvantage newsroom (company press release). Retrieved 4 October 2026.
- ^ “Robert Gahagen” (CEO biography). PHP Biotech International Inc. (phpbiotech.com). Retrieved 4 October 2026.
- ^ US 2023/0364204 A1, “Bioactive Peptides, Compositions, Production Process, and Use of Bioactive Peptides as Anti-Tumoral Agents” (application 18/313,141). Google Patents (U.S. Patent and Trademark Office data). Retrieved 4 October 2026.
- ^ US 2026/0041783 A1, “Nanobody platform, Peptide-modified Nanobody, Production Process, and Use” (application 19/223,678). Google Patents (U.S. Patent and Trademark Office data). Retrieved 4 October 2026.
- ^ “PHP Biotech to Present Nanobody Panel and Sponsor 3rd Annual Oncology Venture, Innovation & Partnering Summit” (25 September 2026). PressAdvantage newsroom (company press release). Retrieved 4 October 2026.