To find the CSC registered agent address for a company you need to serve, look the company up in the business entity database maintained by the secretary of state in the state where you plan to sue. That record shows the exact registered office address currently on file for Corporation Service Company as that company’s agent. Cross-check the address against CSC’s own directory of state office locations to confirm it is current. Using the address on file is what makes service legally effective; a CSC address pulled from any other source can be wrong for that particular defendant.
Why the State’s Business Entity Database Is the Authoritative Source
Every corporation and LLC must appoint a registered agent in each state where it does business, and that agent must maintain a physical street address where legal and government documents can be delivered during normal business hours. A P.O. box does not qualify. CSC represents hundreds of thousands of businesses across every U.S. jurisdiction, and it keeps a different office in each state.
The address that legally counts for service is the one the company itself has filed with the state. Companies change agents. A business that used CSC last year may have switched to a different provider, or may still use CSC in some states but not others. Serving papers at a CSC office where CSC is no longer the designated agent for that entity can result in defective service, which lets the defendant challenge the case and forces you to start the service process over.
Nearly every state offers a free online search through the secretary of state’s website. The record you pull up will show the company’s exact legal name, its status, the name of its current registered agent, and the registered office address. Run the search the same week you plan to serve. An address that was accurate a few months ago may not be accurate today.
Using CSC’s Office Directory as a Cross-Check
CSC publishes its office addresses for all 50 states and the District of Columbia on its own website, organized by state and listing the county where each office sits.1CSC Global. CSC Agent Office Addresses Well-known locations include 251 Little Falls Drive in Wilmington, Delaware and 1201 Hays Street in Tallahassee, Florida.
Treat this directory as a verification tool, not a substitute for the state record. If the address on file with the state matches an address in CSC’s current directory, you have solid confirmation. If the state record lists a CSC address that does not appear in the directory, the address may be outdated and worth a phone call before you send a process server. If the state lists a different registered agent entirely, CSC is not the right recipient for that company, no matter what the directory says.
Getting the Entity Name Right on the Summons
The summons and complaint must correctly identify the defendant entity, and the summons should name the agent receiving service on behalf of that entity. A typical format reads: “Corporation Service Company, as Registered Agent for [Entity Name].”
The distinction between a wrong name and a wrong company matters. Serving the right company under a slightly misspelled name is usually a correctable mistake. Serving the wrong entity because two companies share similar names is a more serious problem, and it can mean the statute of limitations runs out on your actual claim while you are busy serving the wrong defendant. Large corporate families often have dozens of similarly named subsidiaries, so match the name on your summons character-for-character against the state filing before printing the documents.
Many jurisdictions require multiple copies of the papers, often one set for the registered agent and one for the company being served. Check the applicable rules of civil procedure for the court where your case is filed, because the copy requirements vary.
Delivering the Documents to a CSC Office
Under federal rules, any person who is at least 18 years old and not a party to the lawsuit can serve process.2Legal Information Institute. Federal Rules of Civil Procedure Rule 4 – Summons Most people hire a professional process server, which typically costs between $65 and $95 for a standard delivery to a business address. Some jurisdictions also allow service by certified or registered mail with return receipt requested, though personal delivery is the most common and least challengeable method.
For personal service, the server walks into the CSC office during business hours and hands the documents to the CSC employee designated to accept them. CSC offices handle high volumes of service, so this is usually a routine exchange. The server should note the name of the person who accepted the documents, the date, the time, and the exact address of delivery.
After delivery, the server must provide proof of service to the court. In federal cases, this takes the form of the server’s affidavit describing when, where, and how service was made.3United States Courts. Federal Rules of Civil Procedure State courts have their own requirements, and some require the affidavit to be notarized. Either way, this proof of service is filed with the court and becomes the official record that the defendant was notified.
The Registered Agent Is Not Your Only Option
Under federal rules, you can also deliver a summons and complaint to any officer, managing agent, or general agent of the corporation.2Legal Information Institute. Federal Rules of Civil Procedure Rule 4 – Summons Most state rules work similarly. The registered agent address is often the most reliable choice for out-of-state companies because you know someone will be there to accept delivery, but it is not the only permissible target.
Waiver of Service as an Alternative
Federal rules offer a cost-saving shortcut called a waiver of service. Instead of paying a process server, you mail the defendant a request to waive formal service. If the defendant agrees by returning a signed waiver, they get 60 days to respond to the complaint instead of the usual 21 days. If the defendant refuses to sign without good cause, the court will make them pay the expenses you incurred to serve them formally, including attorney’s fees for any motion needed to recover those costs.2Legal Information Institute. Federal Rules of Civil Procedure Rule 4 – Summons Large corporate defendants represented by CSC often prefer the extra response time over the optics of refusing a routine waiver.
Common Mistakes That Derail Service
Most failed service attempts on CSC come down to a handful of avoidable errors:
- Using CSC’s address from one state when the company is registered in another, or an outdated address CSC has vacated.
- Serving “ABC Industries” when the actual registered name is “ABC Industries Holdings LLC.” The state database shows the exact legal name on file.
- Assuming CSC is still the registered agent when the company switched providers. Verify through the state’s current records, not old filings.
- Failing to include the required number of document sets under the applicable rules of procedure.
- Completing the delivery but forgetting to file the affidavit or proof of service with the court, leaving no official record that service occurred.
Each of these gives the defendant ammunition to challenge the service and delay the case. The fix for all of them is the same: check the state database the same week you plan to serve, confirm the entity name and agent address are current, review the applicable procedural rules for document and copy requirements, and make sure your process server files proof of service promptly after delivery.