GE Vernova and TC Energy are two profitable nuclear energy stocks offering investment opportunities as the sector develops. Both companies leverage diversified energy portfolios to fund nuclear operations whilst maintaining profitability. GE Vernova reported net income of $4.9 billion in 2025, with $4.7 billion in its first quarter of 2026. Through its partnership with Hitachi, it's building North America's only SMR currently under construction, the BWRX-300 reactor, expected to operate by 2030. A Tennessee project could be operational by the early 2030s. However, the stock has surged nearly 60% this year and appears overvalued. TC Energy generates revenue from natural gas, pipelines and renewable power, whilst holding a 48.4% stake in Bruce Power, Canada's only private-sector nuclear reactor.

Qube Technologies, a Calgary-based emissions monitoring company, has closed a funding round led by existing investor TC Energy, with participation from NGIF Capital and other strategic investors. The capital will support deployment of Qube's expanded product portfolio across multiple industries. The funding follows record revenue growth in 2025, during which Qube expanded beyond oil and gas into biogas, landfill and mining sectors. The company achieved regulatory validation from the US Environmental Protection Agency and became the first continuous monitoring dataset accepted for Level 5 OGMP reporting. Qube recently launched two new products: Qube Lite, a cost-effective fenceline technology for source-level deployment, and Qube Camera, providing real-time visual confirmation and leak localisation. Both have seen immediate high-volume demand from operators seeking to reduce manual site inspections whilst managing emissions.