Startup · United States
Critical Loop
HQ Long Beach, CAFounded 202311-50 employees
Critical Loop is a Long Beach, California company that deploys relocatable battery systems and its Cygnus power controller so industrial sites can get more power while utility grid upgrades are pending. It finances, permits, deploys and operates the systems with utilities, and its customers include San Diego International Airport.
- Sep 29, 2026CompanyCritical LoopCritical Loop Unlocks Flexible Interconnection for California Industry with First Power Controller to Achieve CSIP 2030.5 Certification and UL 3141 Listing
- Apr 13, 2026CompanyCritical LoopCritical Loop Raises $26M Series A to Accelerate Grid Interconnection
- Feb 9, 2026Companycriticalloop.comSolving Power Constraints for High-Stakes Aerospace Testing
Funding1 round · $26.0M
- Equity raised
- $26.0M
- Latest
- $26.0MSeries A · Apr 13, 2026
| Announced | Stage | Amount | Valuation | Lead investors | Other investors | Confidence |
|---|---|---|---|---|---|---|
| Apr 13, 2026 | Series A | $26.0M | — | Conifer Infrastructure Partners, Hanover Technology Investment Management | Adapt Nation Capital, Better Ventures, Climate Capital, Cyrus Ventures | Confirmed |
- Series ALed by Conifer Infrastructure Partners, Hanover Technology Investment ManagementWith Adapt Nation Capital, Better Ventures, Climate Capital, Cyrus VenturesConfirmed$26.0MApr 13, 2026
Raised counts equity rounds; debt, secondary sales and grants are totaled separately. Amounts in other currencies are converted at the announcement month's average rate. A ~ marks an estimated or converted amount.
Systems3
CLB-5100
Scalable, relocatable 1 MW battery system for grid support at industrial sites.
Cygnus
Software-defined power controller for flexible grid interconnection of batteries, generators and loads.
Newest unveiled first. Open a system for its milestone timeline, components and sources.
Supply Chain1 facility
Facilities1
| Facility | Kind | Location | Status | Confidence |
|---|---|---|---|---|
| Critical Loop Long Beach headquarters | Headquarters | Long Beach, CA, United States | Operating | Confirmed |
- Critical Loop Long Beach headquartersHeadquarters · Long Beach, CA, United StatesOperatingConfirmed
People7
- Andrew Grinalds · LinkedIn ↗
Chief Operating Officer & Co-Founder
- Bala Ramamurthy · LinkedIn ↗
Chief Executive Officer & Co-Founder
- Lydia Maher · LinkedIn ↗
Chief Technology Officer & Co-Founder
- Andrew Grinalds · LinkedIn ↗
Chief Operating Officer & Co-Founder
- Bala Ramamurthy · LinkedIn ↗
Chief Executive Officer & Co-Founder
- Lydia Maher · LinkedIn ↗
Chief Technology Officer & Co-Founder
- Nanna Saito Nielsen
Chief Business Officer
Hiring Observations9 observed listings
Torrance (On-Site) · FullTime · Engineering
Open when checked · Ashby public employer job board
Checked Oct 13, 2026
Torrance (Hybrid) · FullTime · Engineering
Open when checked · Ashby public employer job board
Checked Oct 13, 2026
Inventory Buyer - BESS Systems ↗
Torrance (On-Site) · FullTime · Other
Open when checked · Ashby public employer job board
Checked Oct 13, 2026
Lead Quality Engineer (Build Operations) ↗
Torrance (On-Site) · FullTime · Engineering
Open when checked · Ashby public employer job board
Checked Oct 13, 2026
Manufacturing Engineer - Electrical ↗
Torrance (On-Site) · FullTime · Manufacturing
Open when checked · Ashby public employer job board
Checked Oct 13, 2026
Manufacturing Engineer - Mechnical ↗
Torrance (On-Site) · FullTime · Manufacturing
Open when checked · Ashby public employer job board
Checked Oct 13, 2026
Long Beach (On-site); Torrance (On-Site) · FullTime · Engineering
Open when checked · Ashby public employer job board
Checked Oct 13, 2026
Quality Engineer (Build Operations) ↗
Torrance (On-Site) · FullTime · Engineering
Open when checked · Ashby public employer job board
Checked Oct 13, 2026
Long Beach (On-site) · FullTime · Engineering
Open when checked · Ashby public employer job board
Checked Oct 13, 2026
A sample of observed listings, not a total vacancy count. Availability may have changed since collection. Categories are inferred from job titles.
Sources9
Profile2
- 1
Supports Organization
“Unlock power capacity with behind-the-meter batteries and intelligent controls that dynamically shift between grid power, storage, and on-site generation.”
- 2DatabaseCrunchbase company profile
Crunchbase · Supports Organization · description, Organization · employee range, Organization · website
“about: Critical Loop utilizes modular systems and intelligent software to provide on-demand power solutions.”
Systems2
- 3
Supports Organization · legal name, System
“©2026 Critical Loop, Inc.”
- 4CompanyTechnology
Supports System
“CLB-5100 Infinitely Scalable MW Class Grid Support. [Download product overview](https://cdn.prod.website-files.com/698df0e2ee5f5763091443cf/69d8dd8377019918fd74dc7d_CriticalLoop_CLB5100_ProductOverview.pdf) CLB-2300 1MW/2.3M”
Funding2
- 5
Los Angeles Times · Apr 16, 2026 · Supports Facility, Funding round, Organization · employee range, Organization · founded year
“The team works inside a former hangar on Donald Douglas Drive in Long Beach.”
- 6
Critical Loop · Apr 13, 2026 · Supports Funding round
“a $26 million Series A round led by Conifer Infrastructure Partners and Hanover, with participation from Better Ventures, Climate Capital, Adapt Nation Capital, and Cyrus Ventures”
Supply chain1
- 7
Supports Facility, Organization · hq city
“LBHQ Long Beach, CA”
People1
- 8
Other1
- 9
Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.