Thompson Street Capital Partners Invests in ATIS

ATIS (Thompson Street-backed) Acquires Technical Inspection Agency USA (TIA USA)

September 15, 2025

Professional Services

ATIS, a St. Louis-based provider of elevator and escalator inspections and consulting (backed by Thompson Street Capital Partners), has acquired Technical Inspection Agency USA (TIA USA), a Las Vegas–headquartered provider of vertical transportation inspections and consulting serving Nevada and Arizona. The deal expands ATIS’ national footprint and technical capabilities in complex vertical transportation systems; terms were not disclosed.

ATIS Acquires M.A.N Elevator Inspections

January 1, 2025

Engineering Services

ATIS, a portfolio company of Thompson Street Capital Partners (TSCP), has acquired M.A.N Elevator Inspections, a Florida-based provider of elevator inspection services. The deal expands ATIS's footprint and inspection capacity across southeastern (and western) Florida; terms were not disclosed.

ATIS Acquires Vermont Elevator Inspection Services (VEIS)

November 13, 2024

Engineering Services

ATIS, a portfolio company of Thompson Street Capital Partners (TSCP), has acquired Vermont Elevator Inspection Services (VEIS). The add-on expands ATIS' geographic footprint into Vermont and strengthens its local inspection and regulatory compliance capabilities; terms were not disclosed.

ATIS Acquires Bayline Lift Technologies

December 23, 2025

Engineering Services

ATIS, a portfolio company of Thompson Street Capital Partners (TSCP), has acquired Bayline Lift Technologies, an independent elevator inspection and consulting firm headquartered in Norfolk, Virginia. The add-on strengthens ATIS's footprint in the Mid-Atlantic and expands its inspection and consulting capabilities for government and private-sector clients.

American Testing and Inspection Services Acquires A Smart Elevator Solution and 1 Able Elevator Inspector

November 18, 2020

Engineering Services

American Testing and Inspection Services (ATIS), a St. Louis–based conveyance management company, has acquired Colorado-based A Smart Elevator Solution, LLC (Littleton) and 1 Able Elevator Inspector, LLC (Wheat Ridge). The acquisitions expand ATIS’s inspection, consulting and conveyance management presence in Colorado and integrate the target teams into ATIS’s regional operations.

CAI Capital Partners Invests in ATS Services Ltd.

September 1, 2021

Aerospace & Defense

CAI Capital Partners has closed an investment in ATS Services Ltd., a Canada-based provider of aviation communication services, meteorological observations, training, and equipment distribution. The transaction — CAI's fourth platform investment from its sixth fund — will support ATS' continued growth across its 65 Canadian sites and was debt-financed by The Bank of Nova Scotia.