Radiology Partners is the largest physician-led and physician-owned radiology practice in the United States. Founded in 2012 by Rich Whitney, the company partners with hospitals, health systems, and outpatient imaging centers across all 50 states. Through owned and affiliated practices, RP serves more than 3,300 hospitals and other healthcare facilities, with a network of over 3,300 radiologists interpreting tens of millions of exams annually. The company combines local physician leadership with centralized technology, AI-enabled tools, operations and revenue cycle infrastructure to drive practice transformation.
Company data and valuation marks are estimates and may be incomplete, stale, erroneous, or revised.
Founded
2012
Employees
5,001–10,000
Total Funding
$1.65B
3 rounds
Total raised $1.65B across 3 rounds
Funding data and valuation marks are estimates and may be incomplete, stale, erroneous, or revised.
Last updated 06-25-2026
Latest Round
Type
Growth equity
Date
February 16, 2024
Amount
$720M
Valuation
—
Lead Investors
| Date | Round | Amount Raised | Valuation | Lead Investors |
|---|---|---|---|---|
| February 16, 2024 | Growth equity | $720M | — | Whistler Capital Partners, New Enterprise Associates, Future Fund |
| July 19, 2019 | Growth equity | $700M | — | Starr Investment Holdings |
| March 15, 2018 | Growth equity | $234M | — | New Enterprise Associates, Future Fund |
Rich Whitney
Founder, Chairman & CEO
Brian Stern
Chief Operating Officer
Jamison Larsen
Chief Financial Officer
Jalie Cohen
Chief Human Resources Officer
John Pantazis
Chief Legal Officer
Denis Zerr
Chief Information Officer
Blake Graves
Chief Transformation Officer
Basak Ertan
Chief Revenue Officer
Competitor list is illustrative and may be incomplete, stale, or erroneous.
RadNet
Largest US operator of outpatient imaging centers; publicly traded (NASDAQ: RDNT) with 300+ centers and an AI imaging arm.
US Radiology Specialists
Welsh, Carson, Anderson & Stowe-backed national radiology platform combining physician practices and outpatient imaging centers.
Mednax / Pediatrix Radiology Solutions (vRad)
Teleradiology and on-site radiology services; vRad (acquired by Mednax for $500M) is one of the largest US teleradiology providers.
SimonMed Imaging
Large US outpatient imaging chain operating 170+ centers across multiple states.
Envision Physician Services
National multi-specialty physician services group with a radiology line, providing services across nearly all US states.
No. Radiology Partners is a private company and does not have a public stock ticker or trade on a public stock exchange. Its shares are generally held by founders, employees, investors, and other private shareholders. Buyers and sellers may be able to transact in Radiology Partners shares through private secondary transactions, but any transaction depends on share availability, buyer and seller agreement, transfer restrictions, company approval rights, and any applicable right of first refusal. There is no guarantee that Radiology Partners will complete an IPO or other liquidity event.
Yes, it is sometimes possible to buy Radiology Partners shares pre-IPO through private secondary transactions. This depends on finding a willing seller, company approval, and satisfying any transfer restrictions or rights of first refusal.
Buyers interested in buying Radiology Partners shares on the secondary market typically do so through SetterVC and other secondary-market platforms, subject to eligibility requirements, share availability, transfer restrictions, and issuer approval. Buyers may need to satisfy sophistication, accreditation, institutional, platform, regulatory, or other eligibility requirements before participating. Once eligible, buyers may be able to view listings, make bids, and work with a licensed broker through the transaction process. Buyers should ensure they have appropriate legal and financial advisors guiding them before completing any transaction.
Radiology Partners's latest disclosed funding round was a Growth equity round in February 16, 2024. The round raised approximately $720M, with Whistler Capital Partners, New Enterprise Associates and Future Fund listed as disclosed lead or major investors. Primary funding rounds are different from secondary transactions: in a primary round, capital goes to the company, while in a secondary transaction, investors buy existing shares from current shareholders. Funding-round data reflects publicly reported or collected information and may be incomplete.
Radiology Partners has raised approximately $1.65B in disclosed funding across 3 rounds. These figures reflect primary capital raised by the company and do not include every possible secondary transaction, undisclosed round, debt facility, or private transfer. Reported funding totals can change as new rounds are announced or older round details are corrected. Eligible users can use SetterVC to track Radiology Partners's funding history alongside private-market activity where available.
Radiology Partners's disclosed investors include Whistler Capital Partners, New Enterprise Associates, Future Fund and Starr Investment Holdings. Investor lists are based on public reporting, company announcements, and collected funding-round data, and may be incomplete. Participation in a prior funding round does not mean those investors are currently buying or selling shares. On SetterVC, eligible users can review Radiology Partners's funding history, valuation history, and private-market activity alongside other venture-backed companies.
Radiology Partners's most-cited competitors include RadNet, US Radiology Specialists, Mednax / Pediatrix Radiology Solutions (vRad), SimonMed Imaging and Envision Physician Services. Investors often compare these companies by sector, product focus, valuation, funding raised, growth signals, investor base, and private-market activity.
Secondary-market demand for Radiology Partners shares can be affected by company performance, revenue growth, profitability, funding history, valuation, investor interest, sector momentum, public-market conditions, expected timing of a liquidity event, and the availability of shares for sale. Demand can also be affected by transfer restrictions, company approval rights, right of first refusal processes, limited information, and the price expectations of buyers and sellers. Strong demand does not guarantee strong pricing, liquidity, or investment returns. Weak demand does not necessarily reflect the company's long-term prospects. Demand signals should not be treated as a recommendation or prediction of investment performance. Buyers and sellers should treat demand signals as informational and conduct their own diligence before transacting.
Sellers often rely on intermediaries and platforms, such as SetterVC and other secondary-market platforms, to identify potential buyers. The exact process varies by company and transaction, but sellers often begin by confirming their ownership, desired price, transferability, and any company approval or notice requirements. If the seller agrees with a buyer on acceptable price and terms, the company may need to be notified through a share transfer notice or similar process. If a right of first refusal, company approval right, or other transfer restriction applies, the seller may need to wait until that process is completed. The parties may then execute a purchase and sale agreement, complete required transfer documentation, and close if all required conditions are satisfied. Sellers should always seek proper legal and financial advice before completing the transaction.
Yes, current and former Radiology Partners employees, early investors, and other existing shareholders may be able to sell vested shares before an IPO through a private secondary sale. This is not automatic; it depends on whether the shareholder has transferable shares, whether there is buyer demand, and whether the company's governing documents permit the transfer. Many companies require prior notice, company approval, or a right of first refusal before shares can be sold. Sellers should also seek proper legal and financial advice before proceeding.
A Radiology Partners secondary transaction usually involves an existing shareholder selling shares to a buyer before a public listing. The buyer and seller typically agree on price, number of shares, share class, and closing conditions. The seller may then need to notify Radiology Partners through a share transfer notice or similar process. If Radiology Partners or existing investors have approval rights, transfer restrictions, or a right of first refusal, those steps may need to be completed before the transfer can close. The parties typically enter into a purchase and sale agreement, complete any required transfer documentation, and close only if the necessary conditions are satisfied. Timing and certainty can vary by company and transaction.
In most private secondary transactions, parties commonly use a purchase and sale agreement that outlines price, terms, and conditions. They may also use share transfer documentation, often a stock transfer notice, share transfer notice, transfer instruction, or similar document, along with any required company approval or right of first refusal materials. Proof of ownership, such as a cap table entry, share certificate, brokerage statement, issuer confirmation, or administrator confirmation, may also be important. Buyers often request recent company financials, but private companies may limit disclosure. Since every deal varies, buyers and sellers should consult legal and financial advisors to understand which documents are needed.
Buying Radiology Partners shares pre-IPO is risky. Shares are illiquid, no IPO or liquidity event is guaranteed, valuations can change, transfers may require company approval, and private companies may provide limited financial disclosure. Be prepared for total loss. SetterVC and Setter Capital do not provide due diligence, legal, tax, accounting, valuation, or investment advice. Buyers must conduct their own due diligence, verify information, and seek independent legal and investment advice before proceeding.
Private secondary shares are typically illiquid. Unlike public stocks, there is no active public market, so selling them can be difficult and time-consuming. Sales depend on finding a willing buyer and often require company approval. Investors should be prepared to hold the shares for an extended period, with no guarantee of a future sale. Always assess your need for liquidity before investing.
SetterVC and Setter Capital do not provide due diligence, legal, tax, accounting, valuation, or investment advice. Buyers must conduct their own due diligence, including verifying ownership, transferability, legal structure, company approval, and assessing the company's prospects. SetterVC and Setter Capital do not provide advice on whether an investment is good, what price to pay, or what the best bid or ask is. SetterVC and Setter Capital may share documents in some circumstances, but it does not guarantee their accuracy or completeness. Due diligence is essential. Seek legal and investment advice as needed.
Before buying Radiology Partners shares, a buyer should try to review the share class, price per share, implied valuation, transfer restrictions, ROFR process, company approval rights, seller ownership evidence, recent financing or tender-offer information, available financial information, information rights, resale restrictions, tax considerations, and expected liquidity paths. Not all information may be available for a private company. Buyers should confirm available diligence, process details, and information needs with their own legal, tax, and investment advisers.
SPVs carry risks. Examples include the need to confirm the company allows SPV-based transfers, verify that the SPV truly owns the shares or interests it claims to own, and ensure it has not sold more interests than it holds. Due diligence is essential. Seek legal and investment advice as needed.
Forward contracts carry risks. Examples include the seller refusing to transfer the shares at the future date, even if the seller owns them, the seller going bankrupt with creditors claiming the shares, or the seller committing the same shares to multiple parties. Due diligence is essential. Seek legal and investment advice as needed.
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