Customer focus

Quester Tangent is expert at solving customer problems. We work closely with transit authorities, consultants, and rolling stock manufacturers to define needs clearly, understand each specification, investigate feasibility options, and oversee every project from design to delivery on time and on budget while ensuring customer satisfaction.

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Custom services

We apply modern engineering and manufacturing techniques to create new and fully customized products. We use our service-proven designs as the building blocks for future projects in order to meet the requirements for each scope while providing clients with cost-effective solutions and state-of-the-art electronics equipment in a rail-robust package.

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Midlife renewal support

Quester Tangent builds flexible products supported by a long-lasting service guarantee. We can easily support overhaul and retrofit projects by designing and delivering products that adapt to the form, fit, and function needs of our customers’ existing fleet or to meet new and additional requirements.

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Quality assurance

We have mature processes, industry-compliant products, and strong business practices backed by top-ranking project and supply chain quality audits. We drive operational expansion from the top down to ensure efficiency and growth. We hone our systems from the bottom up by embracing external and internal audits and feedback to increase customer and employee satisfaction.

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Obsolescence management

Quester Tangent maximizes the lifespan of its products and reduces the total cost of ownership. We provide our customers with annual reports to identify End-of-Life (EOL) concerns with our equipment and proactive notifications with a defined timeline and action plan for resolving EOL issues.

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20-year service guarantee

We stand behind our products for the train’s service lifecycle. On a pro rata basis, we will cover our product support costs to provide our customers 20 years of service continuity for train electronics delivered into new build, retrofit, and overhaul projects.

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One-stop shop

We are an independent company with complete in-house electrical, mechanical, software, and system engineering capabilities, assisted by project management and manufacturing expertise. As your one-stop shop for train electronics, we excel at meeting our contract requirements on time and on budget.

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A to Z industry experience

We have more than 20 years of experience in designing modular solutions, building flexible products, providing system and network integration, and engineering services. We produce complete documentation, including product specifications, fault management plan, training materials, and user manuals.

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