UNSPSC 41114216: Alidade

A type of device that is designed to test the direction of the sideline during the flat-table surveying. It is the device to fill in on the drawing paper by setting forth the line of collimation direction that is sometimes used to measure the height difference or distance of two points.

UNSPSC 41114216 Alidade is a Commodity code covering surveying instruments and related equipment maintenance, repair, and support services. State and local governments procure under this code primarily to sustain existing survey and GPS equipment inventories through warranty services, firmware upgrades, software maintenance, hardware repairs, and component replacements — not for new equipment acquisition. Recent solicitations show state departments of transportation and county governments relying on manufacturer-authorized service providers to maintain critical surveying assets across distributed locations. The Illinois Department of Transportation has issued two sole-source maintenance contracts under this code: a $1,497,317.87 one-year Trimble Survey-GPS equipment maintenance and repair agreement with Seiler Instrument (posted May 21, 2026, due June 4, 2026) covering all nine IDOT districts and the central office, and a $194,046.61 one-year Leica Survey Equipment maintenance and repair contract with Kara Co., Inc. (posted April 8, 2026, due April 22, 2026) for similar geographic scope. Both contracts run July 1, 2026 through June 30, 2027 with zero renewal options and are predicated on the vendor's exclusive authorized dealer or reseller status with the manufacturer. Sarasota County, Florida posted a sole-source Leica Geosystems surveying solutions procurement through FLT Geosystems (posted April 13, 2026, due April 10, 2026) for GNSS systems, robotic surveying instruments, field and office software, firmware, and Customer Care Packages.

Activity under the code concentrates in Illinois and Florida, driven by state transportation agencies and county governments managing established survey equipment fleets. Illinois Department of Transportation and Sarasota County are the identified repeat buyers in recent postings. All three documented solicitations are sole-source awards tied to exclusive manufacturer authorization, reflecting the market structure for surveying equipment service — Seiler Instrument holds exclusive Trimble dealer rights in Illinois and the surrounding Midwest; Kara Co., Inc. holds exclusive Leica authorization in Illinois; and FLT Geosystems holds exclusive Leica distribution rights in Florida and specified Georgia and Caribbean territories. No competitive RFPs or RFQs appear in the recent opportunities block. Set-asides or disadvantaged-enterprise preferences do not apply to these sole-source procurements. Vendors pursuing this code should focus on securing and maintaining manufacturer-authorized service provider status with major surveying equipment brands and on building relationships with state DOT maintenance operations and county surveying departments managing geographically dispersed equipment inventories.