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View Horizon Plus's top competitors like Allied Partners, Catalyst Solutions, and Haystack Solutions.

Optimum
At Optimum, we believe in the power of connection. We deliver fast internet, mobile, TV, and phone services to millions of homes and businesses. Our mission: be the connectivity provider of choice in every community we serve. We’re driven by innovation, powered by diverse talent, and committed to great service and strong communities. Our teams are agile, ambitious, and collaborative, fueled by a passion for problem-solving and making real impact
New York, US
Private
$3.3B Revenue
http://www.optimum.com
8.5K Employees
Catalyst Solutions
Catalyst Solutions has been providing cost effective, intelligent business solutions exclusively to health plans for over 25 years. Our solutions include: -Consulting for plan strategy, operations, and technology -AI enablement -Business process outsourcing for: claims, contact center, enrollment, configuration, A&G, and numerous other areas on our Catalyze platform or yours. For more information contact info@catalystsolutions.com
Greenwood Village, Colorado, US
Public
$42.1M Revenue
http://www.catalystsolutions.com
295 Employees
NASDAQ:HLEX Ticker
Sierra Ventures
Sierra Ventures is an early-stage venture firm investing in AI Infrastructure, Vertical AI, Physical Intelligence, and Frontier and Deep Tech. Founded in 1982, with over $2 billion in assets under management, Sierra has built one of the strongest and longest-lasting enterprise networks in venture. That network helps founders win. Our CXO Advisory Board and Annual CXO Summit, now in its 21st year, bring Fortune 1000 executives together with our portfolio to discuss the future of the enterprise. Our Engineering & Product Leaders Council and AI Lab Forum connect founders with the buyers, builders, and acquirers who shape their growth. Through Inception, we partner with founders at the very beginning.
San Mateo, California, US
Private
$20.5M Revenue
https://www.sierraventures.com
51 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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