STACK Acquires SmartUse Solutions

Sysdyne Acquires Slabstack

December 11, 2025

Cloud & SaaS

Sysdyne Technologies has acquired Slabstack to create an AI-powered, end-to-end cloud platform that unifies pricing, CRM, sales optimization, operations, dispatch, delivery and billing for construction materials producers. The acquisition expands Sysdyne’s capabilities beyond ready-mix into aggregates and asphalt while Slabstack will continue operating under its existing leadership as a standalone product within the Sysdyne family.

SafeBase Acquires Stacksi

September 6, 2023

Cybersecurity

SafeBase has acquired Stacksi, a Y Combinator‑backed, AI‑powered security questionnaire automation startup, to integrate automated responses into its Trust Center platform. The deal is intended to accelerate security due diligence and reduce friction in B2B buying by combining SafeBase's customer-facing Trust Center with Stacksi's AI questionnaire automation.

STACK Construction Technologies Acquires Bid Retriever and K-Ops

March 29, 2022

Software

STACK Construction Technologies acquired two construction-focused software solutions, Bid Retriever and K-Ops, to expand its end-to-end platform for subcontractors. The additions extend STACK’s capabilities across preconstruction (bid management) and field collaboration/workflow management, reinforcing its position as a subcontractor-focused construction software platform.

UPSTACK Acquires United Technology LLC

March 17, 2022

IT Services

UPSTACK, a New York-based internet infrastructure platform backed by private equity, has acquired United Technology LLC, a technology consulting firm specializing in complex network deployments and managed services. United Technology Founder Trish Van de Bovenkamp will join UPSTACK as a Partner and Managing Director as UPSTACK expands capabilities and scales its platform.

UPSTACK Acquires Legacy Solutions

September 29, 2021

Telecommunications

UPSTACK, a New York–based cloud and internet infrastructure platform backed by Berkshire Partners, has acquired Legacy Solutions, a Chicago-based telecommunications consulting firm specializing in telecom expense audits and vendor management. Legacy Solutions' co-founders Michael Sanders and Lauren Sanders will join UPSTACK as partners and equity stakeholders to help expand the platform’s advisory capabilities and support customer succession plans.

FivePoint Solutions Acquires Street Smart LLC

May 4, 2020

Software

FivePoint Solutions, a Lexington, South Carolina-based public safety technology company, acquired Street Smart LLC, a real-time information and intelligence platform for law enforcement. The acquisition will integrate Street Smart's real-time crime mapping, situational bulletins and geo-coded collaboration tools into FivePoint's officer and school safety and data-integration platform to expand capabilities for law enforcement customers.