How to Serve CT Corporation in California

If your defendant is a large consumer-facing corporation, there is a good chance your serve ends at one suite in Glendale.

CT Corporation System is the biggest registered agent in the country, and its California office is 330 N Brand Blvd, Suite 700, Glendale, CA 91203, a suite it shares with its Wolters Kluwer sister brand NRAI. CT moved there from downtown Los Angeles in 2021, and the address has since become the highest-volume service-of-process location in Los Angeles County. The mechanics of the serve are genuinely simple. The two places files go wrong are before the drive and on the proof of service, so that is where this guide spends its time.

Step one: confirm CT is actually the agent

Registered agents change, and assumptions about them fail in both directions. The only authoritative source is the California Secretary of State's bizfile database, searched by the defendant's exact legal name or entity number. A big local headquarters does not mean a local agent: companies sitting physically in Glendale route their service to CSC in Sacramento, and some national banks have no California registration at all. The reverse is also true, which is the good news. A large share of the most-sued consumer corporations, from telecoms and card issuers to auto manufacturers, insurers, and gig platforms, designate CT Corporation and are served locally at Brand Blvd.

Serve an address the defendant designated three years ago and no longer uses, and you have handed papers to a stranger. We verify the current agent designation on bizfile before every corridor serve, on the day of dispatch, because the lookup takes minutes and a motion to quash takes months.

The statute doing the work

Code of Civil Procedure section 416.10 governs service on a corporation. Subdivision (a) is the ordinary path: deliver the summons and complaint to the person the corporation has designated as its agent for service of process. When that agent is itself a corporation, like CT, Corporations Code section 1505 requires it to file a certificate listing the employees authorized to accept service on its behalf. Delivery to a person on that roster, at the designated office, is personal service on your defendant.

Two consequences follow that surprise people used to serving individuals. There is no attempts requirement: reasonable diligence and its attempt counts belong to substituted service on individuals, and a registered agent serve needs none of it. And there is no waiting period: personal delivery completes service the day it happens, with no 10-day mailing tail. One trip, served, done.

What actually happens at 330 N Brand

Suite 700 runs a service-of-process intake counter, and it keeps its own hours: Monday through Friday, 7:00am to 1:00pm. That window is CT's business practice, not a rule of law, and it is enforced at the door. We field-verified it the hard way and now plan every corridor run to arrive well before 12:30pm. Bring the summons and complaint copy set for each defendant being served; the intake clerk logs the case, accepts the papers, and the serve is made. We record the accepting employee's name and title, photograph the delivery with GPS and timestamp, and check the name against CT's current section 1505 certificate before the proof of service goes out the door.

The proof itself is form POS-010. For a corporate defendant served through its agent, item 6d is checked with the section 416.10 box, naming the defendant corporation, and item 3b records the person who physically accepted. Getting those boxes right matters more than it looks: the proof of service is the document a default judgment stands on, and it is the first thing opposing counsel reads when hunting for a defect.

The honest caveats

The 7-to-1 window can change without notice, because it is CT's practice, not statute. Entity registrations move: a defendant that designated CT last year may designate someone else today, which is why the bizfile check happens on serve day, not intake day. And a handful of defendants that feel serveable this way are not: national banks like Citibank and U.S. Bank hold no California registration, and unregistered entities need a different service strategy entirely. When the agent designation is unclear, that is a research question worth answering before anyone drives anywhere.

For a plaintiff's firm, the practical summary is short. CT Corporation serves are the fastest, cleanest serves in civil practice: a single attempt, personal service complete on delivery, and a defendant who cannot claim they never got the papers. The entire risk lives in verification, which is exactly the part a local server who works the corridor daily can make routine. Our base in Eagle Rock is about ten minutes from Suite 700, and corridor drops are $49 with next-business-day service guaranteed.

Angel City Legal is a registered process server, not a law firm. This article describes California service procedure for general information; it is not legal advice about your case.