Companies that use CATS ATS

Source: Analysis of Linkedin bios of 349 companies that use CATS ATS

I noticed that CATS ATS users span an incredibly diverse range of operational focuses, but they share a common thread: they're hands-on operators doing specialized work. These aren't tech startups building SaaS products. Instead, I see staffing and recruiting firms placing technical talent, government contractors supporting defense and intelligence missions, construction and manufacturing companies building physical products, healthcare providers delivering patient care, and facility services companies maintaining critical infrastructure. Many are B2B service providers who staff projects, manage contracts, or provide specialized expertise to other organizations.

These are predominantly small to mid-sized established businesses, not startups. The employee counts cluster heavily in the 11-50 and 51-200 ranges, with very few showing funding rounds or venture backing. Many explicitly mention decades in business. They're past survival mode but not massive enterprises. They're at the stage where they have steady operations, need to professionalize HR processes, but don't have budgets for enterprise-grade ATS systems.

Source: Analysis of tech stacks from 349 companies that use CATS ATS

I noticed that companies using CATS ATS tend to be mature, security-conscious organizations that have moved beyond startup scrappiness into structured operations. The combination of enterprise security tools like Perimeter81 and Microsoft Defender for Business alongside marketing platforms like Yoast and WPEngine tells me these are companies that care deeply about both protecting their infrastructure and maintaining a strong digital presence. They're not cutting corners on either front.

The pairing of WPEngine with Yoast is particularly telling. These companies are running WordPress sites on premium managed hosting and optimizing them carefully for SEO. This suggests they rely heavily on inbound marketing and content strategy rather than aggressive outbound sales. The presence of 360Learning, a collaborative learning platform, indicates they're investing in employee development at scale, which typically happens when headcount reaches 100+ employees and training becomes a systematic need rather than an ad hoc process.

The security stack reveals the most about their operational maturity. Perimeter81 and OneLogin are enterprise-grade solutions for network security and identity management. Companies don't implement these unless they have compliance requirements, remote teams accessing sensitive systems, or both. Combined with Microsoft Defender for Business, I'm seeing organizations that probably serve regulated industries or handle customer data that demands serious protection protocols.