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View Theca Systems's top competitors like APCON, Aeris Communications, and Centrica.

Zscaler
Zscaler (NASDAQ: ZS) is a pioneer and global leader in zero trust security. The world’s largest businesses, critical infrastructure organizations, and government agencies rely on Zscaler to secure users, branches, applications, data & devices, and to accelerate digital transformation initiatives. Distributed across 160+ data centers globally, the Zscaler Zero Trust Exchange™ platform combined with advanced AI combats billions of cyber threats and policy violations every day and unlocks productivity gains for modern enterprises by reducing costs and complexity. Stay Connected: LinkedIn: https://www.linkedin.com/company/zscaler Twitter: https://www.twitter.com/zscaler Facebook: https://www.facebook.com/Zscaler/ Instagram: https://www.instagram.com/zscalerinc/
Santa Clara, California, US
Public
$2.2B Revenue
https://www.zscaler.com
9.6K Employees
ZS Ticker
NETSCOUT
We provide the data that drives observability, fortifies cybersecurity, and keeps the world's most essential organizations resilient against disruptions of any kind. NETSCOUT provides real-time, pervasive visibility across the most complex global networks and the insights our customers need to deliver the services the world depends on them for. From healthcare and financial services to utilities, manufacturing, and telecommunications, our approach transforms the way organizations plan, deliver, integrate, test, and deploy services and applications. Our mission is to ensure the connected world runs safely and smoothly by helping our customers know what's happening across their businesses in real time, so they can make better decisions powered by more actionable insights.
Westford, Massachusetts, US
Public
$792.9M Revenue
http://www.netscout.com
2.7K Employees
NTCT Ticker
Centrica
Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses. We supply energy and services to over 10 million customers, mainly in the UK and Ireland, through brands such as British Gas, Bord Gáis Energy and Centrica Business Solutions. Through our trusted brands, we deliver innovative energy and services solutions to help solve customers’ needs, supported by thousands of engineers and technicians. We are committed to energising a greener, fairer future.
UK
Public
$34.7B Revenue
http://www.centrica.com
18.2K Employees
CNA Ticker

Top Theca Systems Employees

G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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