Always Available
24/7 Service
100% Full Guarantee
On-Site Filling
Every 10 Minutes
Real-Time Monitoring
2-Hour Guarantee
Emergency Response
Trusted by Leading Institutions
We're proud to serve many of California's premier research institutions and biotech companies.
Trusted by California's Leading Research Institutions
From university research labs to cryotherapy centers, our customers consistently praise our reliability, communication, and personal approach.
"This vendor has been the best by far to work with. They are reliable, efficient, and responsive. We were notified of Liquid Nitrogen shortages from two other vendors. Nitrogen Express does not have the same issue."
Sandra
Research Facility Manager
"Since we've switched to Nitrogen Express we have never been without nitrogen. They are always prepared to fill, even on short notice. Very kind and treated us fairly and respectfully."
Logan
Laboratory Director
"I absolutely love working with Nitrogen Express. They are accommodating, punctual, and friendly, making every interaction a pleasure. I couldn't imagine working with another company."
Lindsey
Facility Manager
Never Worry About Your Gas Supply Again
Our customers come to us because they're tired of unreliable suppliers who don't keep promises, deliver tanks only 80% full, and disappear when emergencies happen. We're different.
The Old Way (Tank Swapping)
- Tanks filled at supplier location, then transported
- Lose up to 20% volume due to evaporation in transit
- Tanks jostled and damaged during transport
- Your clean lab tank goes to dirty welding shops, then back to you—cross-contamination risk you can't control
- No credit for liquid you paid for but can't access
- Unreliable delivery schedules
- Suppliers who don't answer emergency calls
The Nitrex Way (On-Site Filling)
- We fill your tanks 100% full at your location
- Zero evaporation loss during transport
- Your tanks never leave your facility—zero contamination risk from other customers' environments
- You get exactly what you pay for
- Proactive monitoring and automatic refills
- 2-hour phone/text response guarantee with $1,000 penalty*
*Emergency response guarantee applies to existing customers only. For details, see our FAQ page.
Real-Time Monitoring. Zero Surprises.
Our weight-based monitoring system continuously tracks your liquid nitrogen levels in real-time. We know exactly how much you have and when you'll need more—before you do. (Powered by Trust Gnosis™)
Vendor-Managed Inventory
We monitor your usage 24/7 and schedule deliveries automatically based on your consumption patterns.
Just-in-Time Delivery
Precision weight sensors enable us to deliver exactly when you need it—eliminating waste and preventing emergencies.
Protect Priceless Research
Never lose years of biological samples or critical experiments. Automated alerts ensure you never run out.
Specialty Medical Gases for Critical Applications
From liquid nitrogen for cryopreservation to CO₂ and oxygen for medical applications, we supply the gases that keep your research and operations running.
Liquid Nitrogen
Our primary specialty. Critical for cryopreservation, biobanking, and protecting priceless biological samples.
Applications:
Nitrogen Gas (N₂)
High-purity gaseous nitrogen for blanketing, purging, and controlled atmosphere applications.
Applications:
Carbon Dioxide (CO₂)
Medical-grade CO₂ for cell culture incubators, surgical applications, and laboratory use.
Applications:
Oxygen (O₂)
High-purity oxygen for medical, research, and industrial applications.
Applications:
Mixed Gases
Custom gas mixtures precisely blended for your specific applications and protocols.
Applications:
Built on Four Pillars of Partnership
We enter every relationship with long-term sustainability in mind. These four criteria ensure we deliver value that lasts.
Safe
No risk to employees or facilities. We know what safe looks like and never compromise on safety protocols.
Reliable
Functions as promised. You will not run out of liquid nitrogen. No failures, no poor quality, no excuses.
Convenient
Easy for both parties. Flexible delivery schedules that work for your facility, not just our trucks.
Financially Sound
Fair pricing that reflects market value while ensuring sustainable, long-term relationships.
These criteria are in everyone's best interest. Part of our value proposition is that we know what safe and reliable looks like—and we're confident in delivering it consistently.
Serving California's Medical & Biotech Leaders
We specialize in medical, biotech, research, and fertility applications—not bars, restaurants, or entertainment venues.
Growing since 2018
Trusted partner
Research excellence