FORTUNE — Relationship Science has raised nearly $30 million in new equity funding, according to a regulatory filing.

No word yet on the lead investor, but the New York-based company previously secured around $60 million from Ken Langone, Henry Kravis, CV Starr, Hearst Corp., MacAndrews & Forbes, RIT Capital, Stanley Druckenmiller, Barry Sternlicht, Andrew Tisch, Harvey Golub and Joe Perella. It also raised seed capital from Weld North and RRE Ventures.

For the uninitiated, Relationship Science is kind of an amalgam of LinkedIn and Bloomberg’s internal source files – created by Capital IQ founder Neal Goldman for the use of Wall Street bankers, corporate executives, etc.

Unlike LinkedIn  LNKD , the information is scraped off the web rather than user-generated. And unlike Bloomberg’s internal source files, it doesn’t provide either phone numbers or email addresses.

In a NY Times column last month, Andrew Ross Sorkin referred to Relationship Science as a “Rolodex for the 1 percent.” More from Sorkin:

Here’s how it works: Let’s say a banker wants to get in touch with Mr. Kravis, the private equity deal maker, but doesn’t know him personally. The banker can type Mr. Kravis’s name into a Relationship Science search bar, and the system will scan personal contacts for people the banker knows who also know Mr. Kravis, or perhaps secondary or tertiary connections. The system shows how the searcher is connected — perhaps a friend, or a friend of a friend, is on a charitable board — and also grades the quality of those connections by identifying them as “strong,” “average” or “weak.”

A company spokeswoman declined to comment on the new funding. Expect a formal announcement later this month.

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