StockCap, a key division of Sinclair & Rush, is a globally recognized leader in designing and manufacturing high-quality vinyl, rubber, and plastic protective components. For over 60 years, StockCap has specialized in providing innovative solutions like caps, plugs, flange covers, and custom molded parts to protect products during shipping, storage, or manufacturing processes. They serve a multitude of industries, including automotive, aerospace, medical, electronics, construction, and general manufacturing, emphasizing quality, extensive inventory, and custom design capabilities to meet specific client needs.
Serves as the central hub for Sinclair & Rush's global operations, including corporate management, engineering, research & development, primary manufacturing, sales, and customer support for all its divisions, including StockCap.
State-of-the-art manufacturing facility equipped with advanced molding technologies, extensive warehousing, and modern office spaces designed to foster innovation and operational efficiency.
The headquarters fosters a collaborative and customer-centric work environment, emphasizing innovation in product design, manufacturing excellence, and responsive customer service. Employees are encouraged to contribute to continuous improvement and problem-solving.
This location is pivotal for strategic decision-making, new product development, and coordinating the global manufacturing and distribution network of Sinclair & Rush and its brands like StockCap. It ensures consistent quality and service across all operations.
StockCap, through its parent company Sinclair & Rush, has a robust global footprint with manufacturing facilities, sales offices, and distribution centers strategically located in North America (USA), Europe (United Kingdom), and Asia-Pacific (Australia, China). This international network enables StockCap to effectively serve a diverse global clientele by providing localized sales support, technical assistance, responsive manufacturing, and efficient distribution of its extensive product line, ensuring that industries worldwide have access to top-tier product protection solutions.
11 Salesmark Drive
Arnold
Missouri
USA
Address: Sinclair & Rush Ltd., Units 19 – 22, Revenge Road, Lordswood Industrial Estate, Chatham, Kent, ME5 8UD
To efficiently serve European customers with readily available inventory, custom solutions, and responsive service, reducing lead times and addressing specific regional industrial requirements.
Address: Sinclair & Rush Pty. Ltd., 12 WBP Link, Derrimut, VIC 3026
Provides dedicated support, product availability, and tailored solutions to the Australasian market, adapting to regional manufacturing and engineering standards.
Address: Sinclair & Rush (Changzhou) Mfg. Co. Ltd., No. 18 Longmen Road, Wujin Hi-Tech Industrial Zone, Changzhou, Jiangsu Province, P.R. China 213164
Leverages strategic manufacturing capabilities in China to offer cost-effective production, cater to Asian customers, and support the global distribution network with a comprehensive range of standard and custom parts.
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As of April 2025, StockCap' leadership includes:
StockCap has been backed by several prominent investors over the years, including:
Based on publicly available information, there have been no major executive hires or departures announced for Sinclair & Rush in the last 12 months, suggesting stability in the top leadership team.
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Email addresses for StockCap personnel generally follow the standard format used by its parent company, Sinclair & Rush. The most commonly observed format is the first initial followed by the last name, at the sinclair-rush.com domain.
[first_initial][last]@sinclair-rush.com
Format
jdoe@sinclair-rush.com
Example
85%
Success rate
StockCap Website • January 10, 2024
StockCap announced its participation as an exhibitor at the MD&M West 2024 trade show, a premier event for medical design and manufacturing. At the event, StockCap showcased its latest product protection solutions, including medical-grade caps and plugs, and custom molding capabilities tailored for the healthcare industry....more
Sinclair & Rush Website • July 19, 2023
Sinclair & Rush, Inc., parent company of StockCap, and Indepak, Inc., a custom thermoformer, announced a new manufacturing partnership. This collaboration aims to leverage S&R's material science expertise with Indepak's advanced thermoforming capabilities, expanding product offerings and enhancing solutions for customers of both companies....more
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