Power Plant Services Power Plant Services (PPS, also known as Alin Machining) is a company that manufactures gas and steam turbine parts. | ![]() Stress Engineering Services Stress Engineering Services is a company that provides engineering design and consulting services. | ![]() Cleveland-Cliffs Steel Holding Cleveland-Cliffs Steel Holding (formerly known as AK Steel Holding) is a company that produces flat-rolled carbon, stainless, electrical, plate, tinplate, and long steel products. | Lebronze Alloys Lebronze Alloys (LBA) is a company that produces copper alloys and nickel-based products. | ||
Founding Date | Founding Date 1998 | Founding Date 1972 | Founding Date 1908 | Founding Date 1993 | Founding Date 1934 |
Type | Type Subsidiary | Type Private | Type Private | Type Subsidiary | Type Subsidiary |
Tags | |||||
Locations | Locations Chicago, US HQ Ball Ground, US Chicago, US Chicago, US Marion, US | Locations Houston, US HQ Calgary, CA Irvine, US Mason, US Waller, US | Locations Port Washington, US HQ Fredonia, US Milwaukee, US Port Washington, US | Locations West Chester, US HQ Cleveland, US | Locations Suippes, FR HQ Bornel, FR Breteuil, FR Paris, FR Lüdenscheid, DE Rydzyna, PL |
Employees | Employees 1,838 | Employees 3351% decrease | Employees 2,0852% increase | Employees 2,425 | Employees 452 |
Operating ⚠ | |||||
Capabilities | Capabilities N/A | Capabilities N/A | Capabilities 8 (May, 2024) | Capabilities N/A | Capabilities 10 (Feb, 2024) |
Certifications | Certifications 3 (Aug, 2023) | Certifications N/A | Certifications 6 (May, 2024) | Certifications N/A | Certifications 13 (Feb, 2024) |
Facility Space, sq. ft. | Facility Space, sq. ft. 250 k (Aug, 2023) | Facility Space, sq. ft. 51 k (Jan, 2024) | Facility Space, sq. ft. 250 k (May, 2024) | Facility Space, sq. ft. N/A | Facility Space, sq. ft. N/A |
Industries Served | Industries Served 8 (Aug, 2023) | Industries Served 27 (Jan, 2024) | Industries Served 4 (May, 2024) | Industries Served N/A | Industries Served 8 (Feb, 2024) |
Services Provided | Services Provided 8 (Aug, 2023) | Services Provided N/A | Services Provided N/A | Services Provided N/A | Services Provided 3 (Feb, 2024) |
Types of Materials Used | Types of Materials Used 4 (Aug, 2023) | Types of Materials Used N/A | Types of Materials Used N/A | Types of Materials Used N/A | Types of Materials Used 12 (Feb, 2024) |
Funding | |||||
Latest funding round | Latest funding round N/A | Latest funding round $ 105k (about 8 years ago) | Latest funding round $ 39.6m (over 7 years ago) | Latest funding round N/A | Latest funding round N/A |
Total funding raised | Total funding raised N/A | Total funding raised $ 105k | Total funding raised $ 39.6m | Total funding raised N/A | Total funding raised N/A |

Stress Engineering Services is a company that provides engineering design and consulting services.
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Cleveland-Cliffs Steel Holding (formerly known as AK Steel Holding) is a company that produces flat-rolled carbon, stainless, electrical, plate, tinplate, and long steel products.
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