Who We Are

Direct Lender.
Brooklyn Built.

Quanterium LLC is a direct business lender providing working capital and growth financing to small and mid-size businesses across the United States.

Our Story

Precision Capital for the Real Economy

Quanterium LLC was founded on a simple observation: the businesses that need capital most are often the ones the traditional system serves worst. Banks move slowly, brokers add friction, and approval decisions are made by algorithms that can't see the whole picture.

We built Quanterium to be different. As a direct lender, we own our underwriting process end to end. We read your business — your cash flow, your trajectory, your actual operations — and we make real decisions fast. No file-shopping. No middlemen taking cuts. No 90-day waiting periods.

Based in Brooklyn, NY, we know what it means to operate in the real economy. The restaurant owner who needs capital before a holiday rush. The contractor who won a bid but can't buy materials until the last job pays out. The e-commerce founder scaling faster than their working capital allows. These are the businesses we fund.

Our approach combines data-driven analysis with direct human judgment. We look at your business holistically — revenue trends, payment history, growth signals — and structure funding that actually fits your operation.

$50M+
Total Capital Deployed

Across hundreds of funding relationships with businesses in retail, food service, construction, healthcare, transportation, and more.

500+
Businesses Funded

Small businesses, growing mid-size companies, and first-time borrowers who needed a lender willing to look past surface-level metrics.

24hr
Average Decision Time

From complete application to approval decision. We respect your time and know that business opportunities don't wait.

What Drives Us

Our Operating Principles

Precision

Every funding decision is deliberate. We structure capital solutions matched to your specific revenue profile, growth stage, and operational needs — not a generic product off a shelf.

Speed

Business moves fast. Our underwriting process is engineered to match that pace. Applications reviewed same day. Decisions within 24 hours. Funding within the week.

Transparency

Every term is explained in plain language before you sign. Factor rates, repayment structure, total cost — you'll understand exactly what you're agreeing to.

Direct Relationship

You work directly with us — not a call center, not a broker farm. The people who review your application are the same people who fund your business.

Revenue-First Underwriting

We evaluate your business based on cash flow and trajectory, not just a credit score. Strong revenue with an imperfect credit history? We'll look at the full picture.

Street-Level Perspective

Brooklyn-based and hustle-economy focused. We understand the businesses that actually power local economies because we operate inside those same streets.

Leadership

The Team Behind the Capital

Mike Russo
Founder & Managing Director

Mike Russo founded Quanterium LLC with a mission to build the direct lending operation he wished had existed when he was funding his own early ventures. With deep roots in Brooklyn's business community and years of experience in commercial finance, Mike brings a direct, no-nonsense approach to business capital.

His underwriting philosophy is simple: look at the business, not just the file. Revenue trends, operational fundamentals, and growth trajectory matter more than a credit score number. This approach has enabled Quanterium to fund hundreds of businesses that conventional lenders passed on.

Mike oversees all credit decisions, client relationships, and capital deployment at Quanterium LLC.

Let's Fund Your Business

Tell us about your business. We'll tell you what we can do.

Start Your Application