A federal judge in Manhattan has sentenced Gokce Guven, the founder of New York loyalty software startup Kalder, to 25 months in prison for defrauding investors out of roughly 6.7 million dollars.
Guven, a 27-year-old Turkish national who appeared on the cover of Forbes after being named to its 30 Under 30 list, was also ordered by US District Judge Lewis A. Kaplan to forfeit 6,717,997 dollars and to pay the same amount in restitution to the investors she misled, according to a report by The 420.in.
Prosecutors said more than a dozen venture backers were deceived through doctored balance sheets, overstated revenue and client agreements that had been forged.
A Loyalty Software Startup With Inflated Traction
Guven launched Kalder in New York in 2022, offering software that helps commercial brands run loyalty and rewards programs. The company began a seed fundraising round in April 2024.
Pitch decks shared with investors claimed that 26 brands were actively using the platform and that another 53 companies were being onboarded through an introductory program. Investigators later determined that several of those brands had never signed contracts with Kalder, while others had only agreed to brief pilots at discounted rates.
Two Sets of Books and Fabricated Revenue
The pitch materials also portrayed steady month-over-month growth, stating that Kalder's annual recurring revenue had reached 1.2 million dollars by March 2024.
According to prosecutors, Guven maintained two separate sets of financial records to support that story. An outside accounting firm kept the genuine books showing the company's real condition, while Guven circulated a second, falsified ledger with invented figures to prospective investors.
That doctored ledger was accompanied by a forged corporate partnership agreement intended to reinforce the impression of commercial momentum.
Forged Letters Used in a Visa Application
The investigation extended beyond investor fraud. After her student visa expired, Guven applied for an O-1A visa, a category reserved for foreign nationals who can show extraordinary ability in areas such as business, science and education.
Her petition reused the same fabricated business metrics she had presented to investors and included recommendation letters attributed to prominent corporate executives. Prosecutors said Guven signed those letters herself, without the named executives knowing about or authorizing them.
The visa was approved in autumn 2025 but was revoked after her arrest on November 27, 2025. Further charges filed in January 2026 included securities fraud, wire fraud, visa fraud and aggravated identity theft.
From Magazine Cover to Courtroom
Before the case emerged, Guven had built a strong profile in the startup world. A University of California, Berkeley graduate, she was selected by Forbes in 2025 for its 30 Under 30 list in the marketing and advertising category and featured on the magazine's cover.
At the time, Forbes reported that Kalder had raised 11 million dollars and reached a valuation of 35 million dollars.
Guilty Plea and Parallel SEC Action
Guven resolved the criminal case on May 15 by pleading guilty to a single count of securities fraud, which carries a statutory maximum of five years in prison. As part of her plea deal, she agreed to forfeit nearly 7 million dollars.
Separately, the US Securities and Exchange Commission brought civil proceedings against Guven and Kalder on October 2. A proposed settlement would bar her from serving as an officer or director of any public company for six years, while disgorgement amounts and civil penalties are still awaiting a final decision from the court.
Lessons for Founders and Early-Stage Investors
The case adds to a growing list of high-profile startup fraud prosecutions in which founders allegedly overstated customers and revenue to win funding. It underscores how heavily seed-stage deals can rely on figures supplied directly by founders.
For investors, the details point to the value of independently checking customer contracts and financial records, including with outside accountants. For founders, the outcome is a reminder that inflated traction claims can lead not only to lost credibility but to criminal liability, regulatory bans and personal financial penalties.
Source: The 420.in
