Rebellion Defense vs OpenGov
Side-by-side comparison of AI visibility scores, market position, and capabilities
AI-native defense software startup building autonomous mission platforms for the U.S. military and allies. Raised $224M+ total; $1B valuation at Series B in 2021.
About
Rebellion Defense is a Washington, D.C.-based AI and machine learning software company founded in 2019 by former U.S. government officials and defense tech engineers. The company builds mission-focused AI products for national security customers, with a product suite spanning Iris (predictive threat analytics), SECURE (cyber vulnerability assessment), Dispatch (autonomous mission planning), and Nova (defense analysis and decision support).\n\nRebellion's SensorOS platform provides defense customers with a fused operational picture of the threat environment, automated orchestration across distributed hardware and software, and AI-driven decision support for warfighters. Iris is designated an awardable vendor on the DoD's Tradewinds Solutions Marketplace, enabling streamlined government acquisition. In April 2025 the company expanded a U.S. Navy contract for target recognition enhancement.\n\nWith 200–500 employees across offices in Washington D.C., Seattle, and London, Rebellion represents a generation of defense tech startups aiming to bring Silicon Valley engineering velocity to national security missions. The company is positioned as a software-first counterpart to hardware-focused peers such as Anduril, targeting command, control, and intelligence automation at every echelon.
San Francisco CA. Raised $250M+. Cloud software for government budgeting, permitting, and citizen services, serving 1,600+ government agencies across the US.
About
OpenGov is a San Francisco-based government cloud software company founded in 2012 that has raised over $250M in funding. The company provides an integrated suite of financial management, budgeting, permitting, licensing, and citizen services software to more than 1,600 local and state government agencies across the United States. OpenGov was founded on the premise that government agencies deserve modern, cloud-native software instead of legacy on-premise systems.\n\nThe platform covers the full government operations lifecycle from budget planning and financial reporting to building permits, business license issuance, and code enforcement case management. OpenGov's financial management module replaces outdated government accounting systems with a cloud-native general ledger, budget transparency tools, and performance reporting that helps governments communicate financial data to citizens and elected officials. The company acquired Cartegraph in 2021, adding asset management for government infrastructure.\n\nOpenGov targets county and city governments, special districts, and state agencies looking to modernize from legacy on-premise systems like Tyler Technologies' older products or proprietary COBOL-based accounting software. It competes with Tyler Technologies, Accela, and CivicPlus across its various product lines. OpenGov differentiates through its cloud-native architecture, its integrated platform across financial and citizen-facing services, and its strong transparency and open data features.
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