Quandel Consultants plans, designs, and manages rail corridors in collaboration with state DOTs, Amtrak, and Class I and shortline freight railroads.
Headquartered in Chicago, the firm has grown since 2007 into a dedicated rail engineering and planning firm with eight offices and projects across the country. The firm works between public-sector objectives and private rail operations.
Based on the company’s public LinkedIn information, supplied through RevenueBase.
The firm provides grant strategy, environmental documentation, service planning, program management, and infrastructure design and construction engineering for complex rail projects.
Source: LinkedIn company description · Retrieved October 13, 2026
The firm undertakes work ranging from intercity corridor planning to grade separation engineering.
Source: LinkedIn company description · Retrieved October 13, 2026
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Open the published source list.Snapshot: September 28, 2026
RevenueBase prepared this profile from the company’s public LinkedIn information and RevenueBase company data. These source records were retrieved on October 13, 2026. AI helped summarize these sources, with a separate automated check against the source text completed on November 3, 2026. Directory positions use company-contact counts from separate saved list snapshots dated September 2, 2026, September 4, 2026, September 13, 2026, September 15, 2026, September 16, 2026, September 18, 2026, September 19, 2026, September 20, 2026, September 27, 2026, September 28, 2026 and October 9, 2026. How the company lists are built.
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