![]() Senneca Holdings Senneca Holdings is a diversified management and holding company whose companies are focused on the specialty door industry. | ![]() Ply Gem Ply Gem is a manufacturer of exterior building materials, including windows, siding, stone, and more. | ![]() Cementir Cementir Holding manufactures and distributes grey and white cement, ready-mix concrete, aggregates, and concrete products worldwide. | ![]() Color Star Technology Color Star Technology (formerly Huitao Technology, 彩星科技股份有限公司) is a producer of ready-mix concrete and related technical services for construction projects. | ||
Founding Date | Founding Date 1932 | Founding Date 1943 | Founding Date 1947 | Founding Date 1932 | Founding Date 2000 |
Type | Type Private | Type Private | Type Public | Type Subsidiary | Type Public |
Tags | |||||
Locations | Locations Springdale, US HQ | Locations Cary, US HQ | Locations Amsterdam, NL HQ Hemmant, AU Gaurain Ramecroix, BE Ghent, BE Guangzhou, CN Shangai, CN Yangqiao, CN see more | Locations Auburn Hills, US HQ Manama, BH Porto Real, BR Cairo, EG Bitterfeld Wolfen, DE Orosháza, HU Ankleshwar, IN see more | Locations Beijing, CN HQ |
Employees | Employees 2911% increase | Employees 1,7791% increase | Employees 3,088 | Employees 11,8006% decrease | Employees 233 |
Valuation ($) | Valuation ($) N/A | Valuation ($) N/A | Valuation ($) 1.7 b | Valuation ($) N/A | Valuation ($) 26 m |
Financial | |||||
Revenue (est.) | Revenue (est.) N/A | Revenue (est.) $2.1b (FY, 2017) | Revenue (est.) €1.6b (FY, 2025) | Revenue (est.) $5.6b (FY, 2015) | Revenue (est.) $8.7m (FY, 2025) |
Cost of goods | Cost of goods N/A | Cost of goods $1.6b (FY, 2017) | Cost of goods €762.9m (FY, 2025) | Cost of goods N/A | Cost of goods $9m (FY, 2025) |
Gross profit | Gross profit N/A | Gross profit $468.5m (FY, 2017) | Gross profit €931.6m (FY, 2025) | Gross profit N/A | Gross profit ($249k) (FY, 2025) |
Net income | Net income N/A | Net income $68.3m (FY, 2017) | Net income €208.9m (FY, 2025) | Net income N/A | Net income ($43m) (FY, 2025) |

Ply Gem is a manufacturer of exterior building materials, including windows, siding, stone, and more.
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Cementir Holding manufactures and distributes grey and white cement, ready-mix concrete, aggregates, and concrete products worldwide.
View company
Guardian Industries is a manufacturer of glass and automotive products.
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Color Star Technology (formerly Huitao Technology, 彩星科技股份有限公司) is a producer of ready-mix concrete and related technical services for construction projects.
View company