Mechanism 63
When a Texas entity's registered agent cannot be found
How do you serve a Texas company whose registered agent has disappeared?
The Secretary of State becomes the entity’s agent by operation of law — where the entity fails to appoint or maintain a registered agent, or where the agent cannot with reasonable diligence be found at the registered office. Different statute from the nonresident long-arm, different defendant, same office. Notice on the Secretary is returnable in not less than thirty days.
By John P. Henry · Tex. Bus. Orgs. Code §§ 5.251, 5.252, 5.253 · Reviewed 2026-08-02
The authority
The secretary of state is an agent of an entity for purposes of service of process, notice, or demand on the entity if … the registered agent of the entity cannot with reasonable diligence be found at the registered office of the entity.Tex. Bus. Orgs. Code § 5.251(1)(B)
Tex. Bus. Orgs. Code §§ 5.251, 5.252, 5.253
When it applies
The closed clinic, the agent who resigned and was never replaced, the registered office that is a mail drop nobody empties. Also a foreign filing entity whose registration has been revoked, or which transacts business in Texas without registering at all.
How it is proved up
- Document the diligence before you rely on the statute. “Cannot with reasonable diligence be found” is a fact the record must establish, which in practice means a process server’s affidavit giving dates, times and what was found at the registered office.
- Run the due-diligence affidavit through a checklist before filing it. “Diligent efforts were made” is not a fact and will not support anything built on it.
- Amend the petition to draw a citation directed to the Secretary, the same as for a nonresident.
- Expect the thirty days. Notice on the Secretary is returnable in not less than thirty days under § 5.252(b), which is a different clock from the ordinary answer date.
- Know where the Secretary will send it — the entity’s most recent address on file with the Secretary, by certified mail, under § 5.253. That is frequently an address the entity abandoned years ago, which is the point, but the record should show it is the statutory one.
What defeats it
- A conclusory due-diligence affidavit.
- An agent who could have been found with ordinary effort, which makes the substitute unavailable.
- Serving the Secretary without amending to obtain the proper citation.
- A record that does not show the statutory address was used — the same defect Shamrock identified in the nonresident context, and the analysis is the same here.
Where I have used it
The companion route to the nonresident statute in a high-volume docket: Texas defendants whose agents had gone, served through the Secretary after a due-diligence affidavit was obtained, checked and filed. The order of operations — diligence, file, amend, new citation, serve — is the whole mechanism.
Questions
When does the Texas Secretary of State become an entity's agent for service?
When a filing entity or foreign filing entity fails to appoint or maintain a registered agent, or the registered agent cannot with reasonable diligence be found at the registered office; and, for a foreign filing entity, when its registration is revoked or it transacts business in Texas without registering. Tex. Bus. Orgs. Code § 5.251.
How long is notice on the Secretary of State returnable?
Not less than 30 days, under Tex. Bus. Orgs. Code § 5.252(b).
Where does the Secretary of State forward process for a Texas entity?
To the most recent address of the entity on file with the Secretary, by certified mail with return receipt requested, under § 5.253.