S03.10 · Financial Services & Capital Markets
B2B financial software vendors, as agentic AI erodes core-system switching costs and opens an agent-facing API category.
Fintech software — the B2B technology layer underneath banks, insurers, asset managers and payments companies — is a $340-380B global market (2024/2025E, IMARC Group; Fortune Business Insights). The range is wide because research houses scope "fintech software" differently, spanning everything from core banking systems to narrow point solutions, and the definition chosen moves the number materially. Forward growth projects at ~16-20% CAGR through 2030 and beyond across multiple research firms. The dynamic that matters most is agentic AI eroding the switching-cost moats that have historically protected core software vendors, by making it materially easier for a bank or insurer to migrate off a legacy core system. In a segment where the moat was the pain of leaving, that is the whole game.
Enterprise and core-banking software spend concentrates in the US and Europe, while India and Southeast Asia grow fastest — greenfield digital-banking buildout there skips legacy core-system generations entirely. The vendor landscape is moderately fragmented. Core vendors including FIS, Fiserv, Jack Henry, Temenos and nCino hold meaningful share of banking-core and digital-banking software specifically, while a long tail of point solutions serves narrower categories such as KYC, fraud detection and workflow orchestration.
Upstream, the segment rests on cloud infrastructure and data providers; downstream, its customers are banks, insurers, asset managers and payments companies. The economics are SaaS and subscription-based, with more than 70% of revenue typically recurring, capital-light, and carrying minimal direct licensing requirements of its own. The regulatory weight arrives secondhand: the compliance needs of financial-institution buyers shape product design and stretch sales cycles considerably, and a bank's compliance function often holds effective veto power over vendor selection regardless of the software's underlying merit.
Payments infrastructure, capital-markets trading and risk technology, and specialty-finance underwriting software are where vendors expand as they chase a larger share of a customer's total technology spend. The direction of travel tells the story. Core vendors adding point-solution capability in adjacent categories such as fraud or compliance are protecting platform position against narrower, faster-moving competitors — holding revenue, not adding it. Smaller vendors building out platform breadth across compliance and KYC capability are running the expansion play, converting a single-product relationship into a multi-product one, which is where attach and NRR actually move.
Agentic AI's operational impact lands on implementation and configuration, compliance documentation and customer support — functions that have traditionally required substantial professional-services headcount to deliver a fintech software implementation, particularly the complex core-banking deployments that can take months or years. The vendors' professional-services cost line compresses, and buyers' implementation cost falls with it. The second effect is the dangerous one for incumbents. Switching cost has been the industry's most durable moat, and a bank's reluctance to migrate off a legacy core system has always rested partly on the sheer cost and risk of implementation. As AI lowers that friction, the migration decision increasingly comes down to the underlying product's merits rather than the pain of switching — a competition incumbent core vendors have not had to win on for years.
A distinct new boundary is forming around agent-facing APIs — interfaces designed for AI agents to interact with financial software directly, rather than through a human-operated user interface. This is emerging as a separate buyer category from traditional human-UI software, because the design requirements, security model and pricing logic for an API consumed by autonomous agents differ meaningfully from software built for a human operator clicking through screens. And it is already underway: agent-facing API adoption is a current commercial reality for vendors serving sophisticated financial-institution buyers, not a multi-year forecast.