AI Business Systems5 min read

Rentberry on StartEngine: The Red Flags You Need to See

Rentberry looks promising on StartEngine, until you check the numbers. Here's what deep due diligence on their SEC filings and founder history actually revealed.

A company claiming 22 million property transactions has generated $100,000 in total revenue. Those two numbers cannot coexist honestly.

That's the number that stopped me cold when I dug into Rentberry's StartEngine raise. The pitch deck is polished. The market problem is real. And that's exactly what makes this dangerous, a genuinely interesting idea can carry a lot of trust it hasn't earned.

Here's what I found when I went one layer deeper.

The Pitch That Almost Worked#

The core idea behind Rentberry is solid. Tenants want transparency and speed when finding a place to rent. Landlords want to lease to quality tenants at the highest price. Founder Alex Lubinsky built a technology platform to solve both sides of that equation, using an eBay-style bidding model on rental leases. Tenants pay a fixed application fee and an 8–12% facilitator fee. Landlords pay a deal closure fee plus optional promotions.

That's a real business model with a real monetization path. Over 11 million properties listed across 30 countries. Over 22 million property transactions. More than 1 million active monthly users. A $25 million valuation on StartEngine.

On paper, this reads like a late-stage growth company that just needs capital to scale.

Then you look at the financials.

The Revenue Gap That Breaks Everything#

Since founding in 2017, Rentberry has generated $100,000 in total revenue.

Not $100,000 this quarter. Total. Across the entire life of the company.

If you've processed 22 million property transactions and charged fees on both sides, how do you land at $100K? Either the transaction count is fabricated, the fee model has never actually been applied, or the "transactions" are being defined in a way that has nothing to do with money changing hands. None of those explanations are good.

The burn rate makes the situation more urgent. Rentberry spends roughly $5 million per year in operating expenses. Current assets sit at $2.8 million. That's approximately seven months of runway. If they don't close this raise, find meaningful revenue, or attract institutional capital fast, the company runs out of road.

The auditor on their SEC filing flagged "substantial risk", which is the kind of language auditors use when they're genuinely concerned, not just covering themselves.

The Founder's Track Record#

When the revenue numbers don't add up, the next thing you check is the founder's history. Alex Lubinsky has a long one.

Before Rentberry, he reportedly founded Med Health Nanodiagnostics in 2011, City Hour in 2013, an earlier version of Rentberry in 2015, and Floorly in 2018. Multiple startups isn't a red flag on its own, serial founders often learn from failure. But none of these companies appear to have worked, and the 2015 Rentberry is worth pausing on: the pitch materials say the company was founded in 2017, yet Lubinsky was running a version of it two years earlier. That's a detail that should prompt questions about what happened the first time.

The bigger issue is the 2018 ICO. Lubinsky raised $30 million in cryptocurrency for Rentberry in early 2018. Within four months, the token dropped 99.999% in value. Where did the $30 million go? The current pitch deck doesn't mention the ICO. The SEC filing doesn't account for it. The company reincorporated and raised again through venture capital as if the crypto raise never happened.

There's reportedly a YouTube video of Lubinsky discussing the ICO in Ukrainian. I can't confirm what he says in it. What I can confirm is that $30 million in raised capital, a near-total collapse in token value, and zero public accounting of the funds is a pattern that deserves a direct answer before anyone writes another check.

"I don't like to invest in founders with a shady past." That's where I landed.

The Dead Signals#

Beyond the financials and founder history, I looked for what a healthy user base actually looks like from the outside.

Rentberry's Reddit page hasn't had a post in four years. For a platform claiming over 1 million active monthly users, that's not just unusual, it's a signal. Active users talk. They complain, they recommend, they ask questions. The absence of that activity doesn't prove the user numbers are wrong, but it's consistent with a platform that isn't generating real engagement.

I also couldn't find verifiable customer testimonials. With 11 million listings, you'd expect at least a handful of landlords or tenants willing to go on record about their experience. I found none.

What This Actually Means for Your Decision#

The business model is genuinely interesting. If someone built a clean, well-executed version of this platform with a real revenue track record, it might be worth looking at. The problem space is real, and the fee structure makes sense on paper.

But a great idea and a polished deck are not due diligence. When you're evaluating a crowdfunding investment on StartEngine or any other platform, the things that matter are: Does the revenue match the claimed scale? Can you account for where previous capital went? Is there any organic community activity that confirms real users exist?

For Rentberry, all three of those checks fail. The revenue doesn't match the transaction claims. The $30 million ICO raise is unaccounted for. The community is silent.

If you want a framework for how to evaluate a crowdfunding investment before you commit, the short version is: treat every metric in a pitch deck as a hypothesis, then go find the evidence that either confirms or breaks it. In this case, one number, $100,000 in lifetime revenue against 22 million claimed transactions, was enough to break the whole thing.

I stopped my due diligence here. You should too.

Watch the full video on YouTube: https://youtu.be/VH1w_2ZH9a4

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