Rheinmetall logo

Rheinmetall

TAKING RESPONSIBILITY IN A CHANGING WORLD.

15491 employees · est. 1889 · Dusseldorf, Germany

VS
Sigma Air Conditioning logo

Sigma Air Conditioning

Leading Thermal Management Solutions

36 employees · est. 1956 · Australia

Rheinmetall is the older company (1889 vs 1956); Rheinmetall is the larger of the two.

Side-by-Side Comparison

Rheinmetall Sigma Air Conditioning
Founded
1889 older 1956
Headquarters
Dusseldorf, Germany Australia
Employees
15491 larger 36
Industry
Not tracked yet Industrial, Manufacturing
Funding Stage
IPO Not tracked yet
Total Funding
$1.00B Not tracked yet
Funding Rounds
4 Not tracked yet
Services
Defense System Solutions, Innovative Technology Development, Military Systems and Products, Corporate Sustainability Initiatives Not tracked yet
Target Customers
Defense Ministries, Military Forces, Security Agencies, Technological Alliances Not tracked yet
Taxonomy
Integrated Technology Group, International Systems Supplier, Defence Industry, Technological Innovations, Civilian Markets, CO2 Neutrality, Security Technology, Peace And Freedom, Threat-appropriate Security Technology, Vehicle Systems, Cyber Security, Electronic Solutions, Military Engineering, Mobility Thermal Management Solutions, Transport HVAC Systems, Heavy-Duty HVAC, Rail Industry, Mining Industry, Industrial HVAC Systems, Defense HVAC Solutions, Research And Development, Data Privacy Policy, ISO9001 Certification, Global Market Presence, Whole-Life Product Outlook, Environmental Sustainability, Reliability And Performance
Website
rheinmetall.com sigma-hvac.com
Rheinmetall logo

About Rheinmetall

Rheinmetall, established in 1889, is a renowned integrated technology group based in Düsseldorf, Germany. It stands out as a leading international systems supplier in the defense sector, while also spearheading technological and industrial innovations across civilian markets. Their mission statement...

Sigma Air Conditioning logo

About Sigma Air Conditioning

Sigma Air Conditioning is a leading global company specializing in Transport and Heavy Duty HVAC Systems for various industries, including Rail, Mining, Industrial, and Defense. With over 50 years of experience, Sigma offers tailor-made solutions for its customers, focusing on delivering long-term v...

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Funding, hiring, leadership and stack changes at Rheinmetall and Sigma Air Conditioning — by email.

Frequently Asked Questions

Rheinmetall — TAKING RESPONSIBILITY IN A CHANGING WORLD. . Sigma Air Conditioning — Leading Thermal Management Solutions. Both companies operate in related markets but may differ in funding stage, team size, and product focus.
Rheinmetall has raised $1.00B while Sigma Air Conditioning has raised undisclosed funding.
Rheinmetall and Sigma Air Conditioning operate in overlapping markets and are frequently compared. Track both companies on Bounce Watch to monitor their growth signals in real time.

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Compiled from the BounceWatch company index. We last looked at Rheinmetall on 12 Mar 2026, and Sigma Air Conditioning on 12 Sep 2024. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.

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