Verified Nov 2026
Thermal & Fluid Systems
·
Sparta, Wisconsin
·
Since 1989
Multistack, LLC is a manufacturer of modular and conventional chiller systems, geothermal heat pumps, and oil-free centrifugal chillers, headquartered in Sparta, Wisconsin. Founded in 1989, the company is estimated to employ 100 to 200 people with estimated annual revenue of $50 to $100 million. It is privately held and serves commercial buildings, medical facilities, automotive, electric-vehicle, construction, renewable-energy, and military-defense customers. In February 2026, the company announced a 25% expansion of its production floor across two local facilities.
Multistack, LLC at a glance
Revenue
$50-100M
Est. band
Employees
100-200
Founded
1989
Headquarters
Sparta, Wisconsin
Import activity
45
Industries
Automotive
Electric Vehicles
Construction
Medical
Military & Defense
Renewable Energy
Sourcing and import activity
From US customs bill-of-lading records
US sea imports
45
Named foreign suppliers
11
Top origins
Germany · United Kingdom · Italy · India
Shared foreign counterparties do not establish that these companies buy from Multistack, LLC.
What this tells a buyer
The record shows no customs data, and the most recent development is a February 2026 announcement that Multistack expanded its production floor by 25% across two facilities.
The company's products include modular chillers that can be installed through standard doorways and elevators, along with geothermal heat pumps and MagLev oil-free centrifugal chillers. The record lists no certifications.
Multistack is privately held and reports an estimated 100 to 200 employees. An October 2026 report from datacenter-intelligence.com states that the company selected a Garrett compressor for data center cooling.
Source: US customs bill-of-lading records and public filings · Last verified Nov 05, 2026
Overview
Multistack, LLC is a manufacturer of modular and conventional chiller systems, geothermal heat pumps, and oil-free centrifugal chillers, headquartered in Sparta, Wisconsin. Founded in 1989, the company is estimated to employ 100 to 200 people with estimated annual revenue of $50 to $100 million. It is privately held and serves commercial buildings, medical facilities, automotive, electric-vehicle, construction, renewable-energy, and military-defense customers. In February 2026, the company announced a 25% expansion of its production floor across two local facilities.
At a glance
Attribute | Detail |
|---|---|
Founded | 1989 |
Headquarters | Sparta, Wisconsin |
Employees | 100-200 |
Revenue | $50-100M (estimated) |
Primary capability | Thermal & Fluid Systems |
What Multistack, LLC makes
The company's products include modular chillers that can be installed through standard doorways and elevators, along with geothermal heat pumps and MagLev oil-free centrifugal chillers. The record lists no certifications.
Products and capabilities described on the company's own site include Steel, Assembly, LED (source: multistack.com).
Trade and customs footprint
The record shows no customs data, and the most recent development is a February 2026 announcement that Multistack expanded its production floor by 25% across two facilities. US customs bill-of-lading records list 45 inbound shipments across 11 foreign suppliers, with top origins including Germany · United Kingdom · Italy · India.
Latest developments
2026-10-30 — Multistack selects Garrett compressor for data centre cooling (datacenter-intelligence.com)
2026-10-29 — Garrett wins Multistack contract for data center cooling tech By Investing.com (investing.com)
2026-10-05 — Pmsc Chillers — $19K | STATE, DEPARTMENT OF | FedOps (fedops.com)
2026-09-07 — Jobs Archive - Multistack (multistack.com)
2026-02-11 — Growth in Motion We’re excited to announce a 25% expansion of our production floor across two local facilities! | Multistack, LLC (linkedin.com)
2025-09-17 — Overseas (OCONUS) HVAC Service Technician, Secret Clearance, Chillers - Multistack (multistack.com)
Facilities
Multistack, LLC is headquartered in Sparta, Wisconsin. Public sources also reference these locations:
Sparta, Wisconsin — multistack.com
Company details
Multistack is privately held and reports an estimated 100 to 200 employees. An October 2026 report from datacenter-intelligence.com states that the company selected a Garrett compressor for data center cooling. Multistack, LLC was founded in 1989, has an estimated 100-200 employees, and is headquartered in Sparta, Wisconsin.
Frequently asked questions
What does Multistack, LLC make?
Multistack, LLC is a manufacturer of modular and conventional chiller systems, geothermal heat pumps, and oil-free centrifugal chillers, headquartered in Sparta, Wisconsin. Founded in 1989, the company is estimated to employ 100 to 200 people with estimated annual revenue of $50 to $100 million. It is privately held and serves commercial buildings, medical facilities, automotive, electric-vehicle, construction, renewable-energy, and military-defense customers. In February 2026, the company announced a 25% expansion of its production floor across two local facilities.
Where is Multistack, LLC headquartered?
Multistack, LLC is headquartered in Sparta, Wisconsin (1065 Maple Ave, Sparta, Wisconsin, 54656).
When was Multistack, LLC founded?
Multistack, LLC was founded in 1989.
How big is Multistack, LLC?
Multistack, LLC has an estimated 100-200 employees, with revenue in the $50-100M range (estimated).
Does Multistack, LLC import from overseas suppliers?
US customs bill-of-lading records show 45 inbound shipments for Multistack, LLC, with top origins including Germany · United Kingdom · Italy · India.
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Last verified Nov 2026. Is this your company? Request a correction.
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