Deals can still be made, even in this brutal economy.

In a deal involving companies that make anti-counterfeiting technology, New York private equity firm Lindsay Goldberg LLC acquired a Alpharetta company’s subsidiary, which had been put on the auction block.

The Alpharetta company, Nanoventions Holdings LLC, turned to longtime outside counsel at Bryan Cave-Powell Goldstein for advice on corporate and intellectual property matters.

Nanoventions sold its Visual Physics unit to Lindsay Goldberg for undisclosed terms. Lindsay Goldberg will combine Visual Physics with its portfolio company Crane & Co. of Dalton, Mass.

Visual Physics makes micro-optic security films used for anti-counterfeiting and brand protection applications, according to the company. Crane makes fine stationery and counterfeit-deterrent banknote papers.

Bryan Cave-Powell Goldstein partner Todd Wade advised Nanoventions on corporate matters, and partner Scott Killingsworth advised on intellectual property. Bryan Cave-Powell Goldstein partner Rick Miller sits on Nanoventions’ board but wasn’t involved in providing legal advice, Wade said.

Thomas Kayden Horstemeyer & Risley partner Todd Deveau serves as patent counsel to Visual Physics, Wade said. Choate Hall & Stewart partner James Hackett in Boston advised Lindsay Goldberg.

Lindsay Goldberg lined up financing for its acquisition of Visual Physics, but the companies aren’t disclosing terms of the financing, Wade said. Cleveland investment bank Brown Gibbons Lang & Co. ran the auction for Nanoventions.

Software maker Pegasus Imaging Corp. consulted longtime outside attorney Evelyn A. Ashley during its negotiations to acquire a rival company.

Ashley, founding partner of corporate law boutique Trusted Counsel LLC, said she’s been working with Pegasus since 1996. The Tampa, Fla. company was founded in 1991.

Pegasus, based in Tampa, Fla., declined to disclose the specific price it paid for AccuSoft Corp., Ashley said. But a press release described it as being an “eight-figure deal.” The deal didn’t involve outside financing. Additionally, neither company had ever received venture-capital funding, she said.

“They are bootstrap companies,” Ashley said.

The ongoing problems with the U.S. economy hovered over the negotiation of the deal, but never presented any major obstacles to its closing, Ashley said.

“There was a close watch on exactly what AccuSoft’s sales were, making certain the price was in line with what their performance was,” she said.

Pegasus makes digital-imaging software, including ImagXpress-brand software development kit, used in the medical industry and in other fields. AccuSoft, of Northborough, Mass., is involved in a similar business. Both companies are privately held.

Choate Hall & Stewart partner Larry Gennari in Boston advised AccuSoft.