Lumin Digital has raised more than $115 million in new capital, valuing the financial technology company at $1.6 billion as it expands its platform for banks and credit unions. The financing combines more than $70 million from company clients with a recently completed $45 million growth equity investment led by Light Street Capital. Lumin said the proceeds will support product development, market expansion, and continued investment in its unified digital banking system.
Client Participation Shapes the Round
The transaction extends Lumin’s strategy of allowing customers to invest alongside institutional shareholders. Fifteen additional clients participated in the latest financing, strengthening the connection between the company and the financial institutions that use its technology. Founder and CEO Jeff Chambers said the participation reflected confidence in Lumin’s execution, platform direction, and long-term growth plans.
Light Street Capital increased its backing through the $45 million growth equity component. Partner Kevin Sullivan said the firm supports Lumin’s effort to build a cloud platform for financial institutions as artificial intelligence becomes more important across the sector. FT Partners served as Lumin Digital’s exclusive strategic and financial adviser on the transaction.
Capital Supports a Broader Platform
Lumin plans to invest the new funds in artificial intelligence, payments, customer relationship management, lending, and other product categories. The company is expanding beyond conventional digital banking software toward an integrated platform covering customer acquisition, engagement, service, and revenue growth. Its objective is to give banks and credit unions a more unified alternative to combining separate products from multiple technology vendors.
The cloud-native platform includes digital banking, analytics, risk management, marketing, administrative tools, and software interfaces that allow institutions to connect additional services. Lumin has also introduced Lumin Solaire, an AI-native intelligence layer designed to embed automated capabilities throughout the platform. The company expects the financing to accelerate this roadmap while supporting broader adoption among financial institutions.
Performance and Customer Outcomes
Lumin said it has exceeded financial objectives while improving margins and operating efficiency, and it reported a net promoter score of 94. Affinity Plus CEO Dave Larson said the institution invested after observing the platform’s effects on user growth and digital engagement. These statements indicate strong customer confidence, although the operational figures were provided by the company in its announcement.
Lumin also cited an independent commissioned study by 451 Research, part of S&P Global Market Intelligence, which estimated a 145% return on investment over five years. The research calculated a 10.8-month payback period for institutions using the platform, supporting Lumin’s argument that its technology can generate measurable economic benefits. Actual results may differ according to an institution’s size, implementation, customer base, and operating structure.
Building on Previous Financing
The latest capital follows a $170 million growth equity round completed in December 2024 and $75 million in client investment announced in March 2025. Lumin said the combined financing has strengthened its balance sheet and increased its ability to develop products while serving existing customers. Founded in 2016, the company has increasingly positioned itself as a growth platform rather than only an online and mobile banking provider.
Lumin Digital’s new financing provides more than $115 million for expansion and establishes a $1.6 billion valuation based on the completed transaction. Customer participation alongside Light Street Capital gives the company both additional resources and an endorsement from institutions using its technology. The next test will be whether Lumin can convert that backing into differentiated products, sustained client results, and wider adoption across banks and credit unions.