delivered the opinion of the Court.
This case concerns 28 U. S. C. § 1441, which authorizes the removal of civil actions from state court to federal court when the action initiated in state court is one that could have been brought, originally, in a federal district court. § 1441(a). When federal-court jurisdiction is predicated on the parties’ diversity of citizenship, see §1332, removal is permissible “only if none of the parties in interest properly *84 joined and served as defendants is a citizen of the State in which [the] action [was] brought.” § 1441(b).
Christophe and Juanita Roche, plaintiffs below, respondents here, are citizens of Virginia. They commenced suit in state court against diverse defendants, including Lincoln Property Company (Lincoln), a corporation chartered and having its principal place of business in Texas. The defendants removed the litigation to a Federal District Court where, after discovery proceedings, they successfully moved for summary judgment. Holding the removal improper, the Court of Appeals instructed remand of the action, to state court.
We reverse the judgment of the Court of Appeals. Defendants may remove an action on the basis of diversity of citizenship if there is complete diversity between all named plaintiffs and all named defendants, and no defendant is a citizen of the forum State. It is not incumbent on the named defendants to negate the existence of a potential defendant whose presence in the action would destroy diversity. 1
I
Christophe and Juanita Roche leased an apartment in the Westfield Village complex in Fairfax County, Virginia.
*85
About a year after moving in, they discovered evidence of toxic mold in their apartment. Expert inspection confirmed the presence of mold, which the inspection report linked to hair loss, headaches, irritation of the respiratory tract, fatigue, and dermatitis. App. 184-190. The report stated that spores from toxigenic mold species were airborne in the apartment and had likely contaminated the carpeting and fabric surfaces throughout the dwelling.
Id.,
at 188. The Roches moved out of their apartment for the remediation process, leaving their personal belongings in the care of Lincoln, the designated property manager of Westfield Village, and the mold treatment firm.
Some months later, the Roches commenced suit, filing two substantially similar complaints in the Circuit Court for Fair-fax County, Virginia. App. 27-50, 53-75. Both complaints asserted serious medical ailments from the Roches’ year-long exposure to toxic mold, and sought damages under multiple headings, including negligence, breach of contract, actual fraud, constructive fraud, and violations of Virginia housing regulations. Id., at 38-48, 64-74. In addition, the Roches alleged loss, theft, or destruction of their personal property (including irreplaceable family keepsakes) during the remediation process. Regarding these losses, they sought damages for conversion and infliction of emotional distress. Id., at 49-50, 74-75.
In state court, the Roches’ complaints named three defendants: Lincoln; INVESCO Institutional, an investment management group; and State of Wisconsin Investment Board, the alleged owner of Westfield Village. Id., at 26-28,52-54. The complaints described Lincoln as “a developer and manager of residential communities, including . .. Westfield Village.” Id., at 27,53. “[A]cting by and through [its] agents,” the Roches alleged, Lincoln caused the personal injuries of which they complained. Id., at 30, 56.
Defendants timely removed the twin cases to the United States District Court for the Eastern District of Virginia, *86 invoking that court’s diversity-of-citizenship jurisdiction. See 28 U. S. C. §§ 1332(a)(1), 1441(a). The notice of removal described Lincoln as a Texas corporation with its principal place of business in Texas, INVESCO as a Delaware corporation with its principal place of business in Georgia, and State of Wisconsin Investment Board as an independent agency of Wisconsin. App. 81. In their consolidated federal-court complaint, the Roches identified themselves as citizens of Virginia and Lincoln as a corporation headquartered in Texas, just as they did in their state-court complaints. Id,., at 27, 53, 114-115. 2 Further, they stated affirmatively that the federal court “has jurisdiction of this matter.” Id., at 114. Lincoln, in its answer to the complaint, admitted that, through its regional offices, “it manages Westfield Village.” Id., at 137, 138. Lincoln did not seek to avoid liability by asserting that some other entity was responsible for managing the property.
In both their state- and federal-court complaints, the Roches stated that, “[u]pon further discovery in this case,” they would “determine if additional defendant or defendants will be named.” Id., at 28, 54, 116. Although they engaged in some discovery concerning Lincoln’s affiliates, their efforts in this regard were not extensive, Tr. of Oral Arg. 9, 14, 38-39, 48-49, 53, and at no point did they seek to join any additional defendant.
After discovery, the parties cross-moved for summary judgment. The District Court granted defendants’ motion and denied plaintiffs’ motion, noting that it would set forth its reasons in a forthcoming memorandum order. App. to Pet. for Cert. 20a-21a. The promised memorandum order *87 issued a few months later, id., at 22a-40a, and the District Court entered final judgment for the defendants the same day, id., at 41a.
Six days after the District Court granted defendants’ motion for summary judgment, but before final judgment was entered, the Roches moved to remand the case to the state court, alleging for the first time the absence of federal subject-matter jurisdiction. 3 Specifically, the Roches alleged that Lincoln “is not a Texas Corporation, but a Partnership with one of its partners residing in the Commonwealth of Virginia.” App. 226. 4 The District Court denied the remand motion, concluding that Lincoln is a Texas corporation and that removal was proper because the requisite complete diversity existed between all plaintiffs and all defendants. App. to Pet. for Cert. 84a-93a.
The Court of Appeals for the Fourth Circuit reversed and instructed the District Court to remand the case to the state court.
We granted certiorari,
The Court of Appeals correctly identified Lincoln as a proper party to the action, but it erred in insisting that some other entity affiliated with Lincoln should have been joined as a codefendant, and that it was Lincoln's obligation to name that entity and show that its joinder would not destroy diversity.
We stress, first, that, at this stage of the case, the existence of complete diversity between the Roches and Lincoln is not in doubt. The Roches, both citizens of Virginia, acknowledge that Lincoln is indeed a corporation, not a partnership, and that Lincoln is chartered in and has its principal place of business in Texas. Tr. of Oral Arg. 40-41; see App.
*89
114 (“Upon information and belief, Lincoln Property Company is a corporation with corporate headquarters [in] Texas.”);
We turn now to the reasons why the Fourth Circuit erred in determining that diversity jurisdiction was not proved by the removing parties.
While § 1332 allows plaintiffs to invoke the federal courts’ diversity jurisdiction, § 1441 gives defendants a corresponding opportunity. Section 1441(a) states: “Except as otherwise expressly provided by Act of Congress, any civil action brought in a State court of which the district courts of the United States have original jurisdiction, may be removed by the defendant or the defendants, to the district court of the United States for the district and division embracing the place where such action is pending.” The scales are not *90 evenly balanced, however. An in-state plaintiff may invoke diversity jurisdiction, but § 1441(b) bars removal on the basis of diversity if any “part[y] in interest properly joined and served as [a] defendan[t] is a citizen of the State in which [the] action is brought.” 6 In the instant case, Virginia plaintiffs Christophe and Juanita Roche joined and served no Virginian as a party defendant. Hence the action qualified for the removal defendants effected.
Neither Federal Rule of Civil Procedure 17(a), captioned “Real Party in Interest,” nor Rule 19, captioned “Joinder of Persons Needed for Just Adjudication,” requires plaintiffs or defendants to name and join any additional parties to this action. Both Rules, we note, address party joinder, not federal-court subject-matter jurisdiction. See Rule 82 (“[The Federal Rules of Civil Procedure] shall not be construed to extend or limit the jurisdiction of the United States district courts . . . .”); Advisory Committee’s Notes on Fed. Rule Civ. Proc. 19,28 U. S. C. App., pp. 696-698. Rule 17(a) directs that “[e]very action shall be prosecuted in the name of the real party in interest.” (Emphasis added.) That Rule, as its text displays, speaks to joinder of plaintiffs, not defendants.
Rule 19 provides for the joinder of parties who should or must take part in the litigation to achieve a “[j]ust [adjudication.” See
Provident Tradesmens Bank & Trust Co.
v.
Patterson,
While Rule 17(a) applies only to joinder of parties who assert claims, the Court of Appeals and the Roches draw from decisions of this Court a jurisdictional “real parties to the controversy” rule applicable in diversity cases to complaining and defending parties alike. See
Navarro Savings Assn.
v.
Lee,
III
Our decisions employing “real party to the controversy” terminology in describing or explaining who counts and who can be discounted for diversity purposes bear scant resemblance to the action the Roches have commenced. No party here has been “improperly or collusively” named solely to create federal jurisdiction, see 28 U. S. C. § 1359 (“A district court shall not have jurisdiction of a civil action in which any party, by assignment or otherwise, has been improperly or collusively made or joined to invoke the jurisdiction of such court.”);
Kramer
v.
Caribbean Mills, Inc.,
Nor are the Roches aided by cases in which actions against a state agency have been regarded as suits against the State itself. See,
e. g., State Highway Comm’n of Wyo.
v.
Utah Constr. Co.,
Unlike cases in which a party was named to satisfy state pleading rules,
e. g., McNutt ex rel. Leggett, Smith, & Lawrence
v.
Bland,
In any event, we emphasize, the Fourth Circuit had no warrant in this case to inquire whether some other person might have been joined as an additional or substitute defendant. See
ibid,
(federal courts should not “inquir[e] outside of the case in order to ascertain whether some other person may not have an equitable interest in the cause of action”);
Little,
Congress, empowered to prescribe the jurisdiction of the federal courts, sometimes has specified that a named party’s own citizenship does not determine its diverse status. Thus, as a procedural matter, executors, administrators, and guardians “may sue in [their] own name[s] without joining the party for whose benefit the action is brought.” Rule 17(a). As to diversity jurisdiction, however, § 1332(c)(2) directs that “the legal representative of [a decedent’s] *94 estate . . . shall be deemed to be a citizen only of the same State as the decedent, and the legal representative of an infant or incompetent shall be deemed to be a citizen only of the same State as the infant or incompetent.” Congress has also provided that in direct action suits against insurers to which the insured is not made a party, the “insurer shall be deemed a citizen of the State of which the insured is a citizen, as well as of any State by which the insurer has been incorporated and of the State where it has its principal place of business.” § 1332(c)(1).
But Congress surely has not directed that a corporation, for diversity-of-citizenship purposes, shall be deemed to have acquired the citizenship of all or any of its affiliates. For cases of the kind the Roches have instituted, Congress has provided simply and only this instruction: “[A] corporation shall be deemed to be a citizen of any State by which it has been incorporated and of the State where it has its principal place of business.” Ibid. The jurisdictional rule governing here is unambiguous and it is not amenable to judicial enlargement. Under § 1332(c)(1), Lincoln is a citizen of Texas alone, and under § 1441(a) and (b), this case was properly removed.
* * *
The Roches sued the entity they thought responsible for managing their apartment. Lincoln affirmed that it was so responsible. Complete diversity existed. The potential liability of other parties was a matter plaintiffs’ counsel might have assiduously explored through discovery devices. It was not incumbent on Lincoln to propose as additional defendants persons the Roches, as masters of their complaint, permissively might have joined.
For the reasons stated, the judgment of the United States Court of Appeals for the Fourth Circuit is reversed, and the case is remanded for further proceedings consistent with this opinion.
It is so ordered.
Notes
Defendants below, petitioners here, presented a second question in their petition for certiorari: Can a limited partnership be deemed a citizen of a State on the sole ground that the partnership’s business activities bear a “very close nexus” with the State? Because no partnership is or need be a party to this action, that question is not live for adjudication. We note, however, that our prior decisions do not regard as relevant to subject-matter jurisdiction the locations at which partnerships conduct business. See
Carden
v.
Arkoma Associates,
Some weeks after the removal, the District Court dismissed INVESCO as a defendant. App. 112. Nothing turns on the presence or absence of INVESCO as a defending party. State of Wisconsin Investment Board, alleged owner of Westfield Village, remains a defendant-petitioner. Its status as a Wisconsin citizen for diversity purposes is not currently contested.
The Roches state that they preferred to litigate in state court for two principal reasons: Virginia does not permit summary judgment based on affidavits or deposition testimony, and Virginia has not adopted the rule of
Daubert
v.
Merrell Dow Pharmaceuticals, Inc.,
Confusion about Lincoln’s structure is understandable. Real estate businesses typically operate through a web of affiliated entities, see Brief for Real Estate Roundtable et al. as Amici Curiae 6-13, and certain Lincoln-affiliated responders to the Roches’ discovery inquiries stated that Lincoln was a partnership, e. g., App. 175, 176, 179. In response to the Roches’ motion to remand, Lincoln proffered its 1979 Texas incorporation papers and an affidavit attesting to its status as a Texas corporation. Id., at 238-246. That matter is no longer debated; at oral argument, counsel for the Roches acknowledged that Lincoln is a Texas corporation. Tr. of Oral Arg. 40-41.
The Roches sought damages well in excess of the jurisdictional minimum. App. 40-50, 66-75, 131-134.
Although we have not addressed the issue, several lower courts have held that the presence of a diverse but in-state defendant in a removed action is a “procedural” defect, not a “jurisdictional” bar, and that the defect is waived if not timely raised by the plaintiff See 14C C. Wright, A. Miller, & E. Cooper, Federal Practice and Procedure §3739, pp. 451-457, and nn. 32-37 (3d ed. 1998).
Similarly inapposite are cases invoking our original jurisdiction in which we have inquired into the capacity in which a sovereign party appears. See,
e. g., Oklahoma ex rel. Johnson
v.
Cook,
The Roches’ complaints cast Lincoln as the primary tortfeasor, alleging that Lincoln engaged in “a conscious and predetermined plan” to conceal the hazards of mold from apartment residents. App. 34,60. Further, the Roches alleged that Lincoln ignored numerous mold-related maintenance requests they “personally” made to Lincoln, id., at 29, 55, inquiries that, if followed up, might have prevented or lessened their injuries.
