FlexScreen on Shark Tank: Joe Altieri's Bendable Window Screen, Lori Greiner's Matched Offer, and the 2025 Sale to RiteScreen

Yes, FlexScreen got a deal on Shark Tank, and it ended in a sale. Joe Altieri, a Pennsylvania inventor whose window screens bend to snap in and out without hardware, pitched in an episode that aired on January 5, 2020, asking for $800,000 for 6%. Three Sharks made offers. He leaned toward Barbara Corcoran’s, Lori Greiner matched it, and he took Greiner’s: $400,000 in cash plus a $400,000 credit line. The partnership was finalized that year. On February 13, 2025, The RiteScreen Company, a 1947-founded screen maker owned by private equity firm Seven Point Equity Partners, bought FlexScreen. Terms were not disclosed, but the sellers took rollover equity in RiteScreen’s parent and Altieri became its Chief Innovation Officer. FlexScreen is still sold in October 2026 as a RiteScreen brand.

The FlexScreen Shark Tank deal at a glance

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The ask valued FlexScreen at about $13.3 million. Greiner’s opening offer, $800,000 for 10%, valued it at $8 million, though half of that money was credit rather than cash. Our post-money valuation calculator does the arithmetic for any ask.

What FlexScreen makes

FlexScreen is a window screen with a frame made of spring steel that flexes, so it can be bent to fit into a window opening and released to hold itself in place, with no clips or hardware. Window & Door described it in 2020 as using “high-performance spring steel and damage-resistant frames.” Altieri founded the company in 2013 in Export, Pennsylvania, outside Pittsburgh, and holds the patent, according to WPXI. Before the show, FlexScreen sold mostly to window manufacturers rather than to homeowners.

What happened in the Tank

According to Shark Tank Blog’s account, Altieri told the Sharks he had sold more than $5 million to window manufacturers over five years, and the Sharks focused on margins they put at about 15%. One Shark offered $800,000 for 20% contingent on a licensing deal with a large window manufacturer. Greiner offered $400,000 in cash plus a $400,000 line of credit for 10%. Corcoran offered the same cash and credit for 50% of the retail business. Altieri leaned toward Corcoran’s offer; Greiner matched it, and he accepted hers. “I went into the Tank hoping for a deal with Lori,” he told Window & Door. The final equity percentage has not been published.

Did the FlexScreen deal close?

Yes. Window & Door reported on October 6, 2020 that Altieri had “finalized an equity partnership” with Greiner. Shark Tank Blog says the deal closed after the episode’s August 2020 rerun. Greiner lists FlexScreen on her own Shark Tank page, and she commented on the 2025 sale: “I could not be more thrilled for Joe and the entire FlexScreen team.”

What happened to FlexScreen after Shark Tank

The growth came through retail. Shark Tank Blog reports that sales went from about $5.1 million to more than $15 million in the year after the episode, that Greiner brokered a deal with the building-materials company Saint-Gobain, and that by March 2021 FlexScreen was in Home Depot, Lowe’s and Menards. It reports revenue of about $20 million in 2021 and more than $30 million in 2022, the latter as reported in May 2023. Those are company figures relayed by a fan site, not audited results. In 2023 the Pittsburgh Business Times ranked FlexScreen No. 6 on its Fast 50 list of the region’s fastest-growing private companies, and Altieri won its C-Suite Award, WPXI reports.

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Source: Shark Tank Blog, relaying company and press figures. Greiner’s website, checked October 28, 2026, says FlexScreen “did $200 Million in sales before being acquired by RITESCREEN in 2025.” That figure is on an investor’s promotional page and is far above anything in the reported annual numbers; whether it means cumulative company revenue or retail sales is not stated.

The sale to RiteScreen

On February 18, 2025, RiteScreen announced that it had acquired FlexScreen. The deal was completed on February 13, according to the law firm Dinsmore & Shohl, which represented FlexScreen from its founding through the sale. Dinsmore says the sellers received rollover equity in RiteScreen’s private-equity-backed parent and that Altieri signed a long-term agreement to serve as RiteScreen’s Chief Innovation Officer. RiteScreen, based in Elizabethville, Pennsylvania, was founded in 1947 and has been owned by Seven Point Equity Partners since 2014, per WPXI. “This acquisition is a transformative moment for our company,” RiteScreen CEO Chris Yankowich said. Financial terms were not disclosed. FlexScreen returned to Shark Tank for a fourth time in a December 10, 2025 update episode, Window & Door reported.

Is FlexScreen still in business, and who owns it?

Yes. FlexScreen is still sold in October 2026 as a product line of The RiteScreen Company, which Seven Point Equity Partners owns. Altieri and his co-sellers hold rollover equity in RiteScreen’s parent. We could not verify an official Amazon listing, so there is no Amazon link here.

What founders can take from it

First, a business-to-business company can use Shark Tank to open retail. FlexScreen sold to window makers before the episode, and the Shark brought the home-improvement chains. Second, rollover equity is a bet on the buyer. Altieri’s team took part of its proceeds in RiteScreen’s parent, so its final payout depends on what Seven Point does next. Third, a credit line is not cash. Half of Greiner’s $800,000 was debt capacity, which works for a manufacturer financing inventory and is an expensive way to fund anything else. Greiner used a similar structure with Everlywell; for a sale with an earnout that turned out to be worth nothing, read Bantam Bagels.