Opinion of Gorsuch, J.
III
A
Unsurprisingly, some corporations challenged statutes like these on various grounds, due process included. And, ultimately, one of these disputes reached this Court in Pennsylvania Fire.
That case arose this way. Pennsylvania Fire was an insurance company incorporated under the laws of Pennsylvania. In 1909, the company executed a contract in Colorado to insure a smelter located near the town of Cripple Creek owned by the Gold Issue Mining & Milling Company, an Arizona corporation. Gold Issue Min. & Milling Co. v. Pennsylvania Fire Ins. Co. of Phila., 267 Mo. 524, 537, 184 S. W. 999, 1001 (1916). Less than a year later, lightning struck and a fire destroyed the insured facility. Ibid. When Gold Issue Mining sought to collect on its policy, Pennsylvania Fire refused to pay. So, Gold Issue Mining sued. But it did not sue where the contract was formed (Colorado), or in its home State (Arizona), or even in the insurer’s home State (Pennsylvania). Instead, Gold Issue Mining brought its claim in a Missouri state court. Id., at 534, 184 S. W., at 1000. Pennsylvania Fire objected to this choice of forum. It said the Due Process Clause spared it from having to answer in Missouri’s courts a suit with no connection to the State. Id., at 541, 184 S. W., at 1002.
The Missouri Supreme Court disagreed. It first observed that Missouri law required any out-of-state insurance company “desiring to transact any business” in the State to file paperwork agreeing to (1) appoint a state official to serve as the company’s agent for service of process, and (2) accept service on that official as valid in any suit. Id., at 543, 184 S. W., at 1003 (internal quotation marks omitted). For more than a decade, Pennsylvania Fire had complied with the law, as it had “desir[ed] to transact business” in Missouri “pursuant to the laws thereof.” Id., at 545, 184 S. W., at 1003. And Gold Issue Mining had served process on the
