Carta, Inc. vs Fiserv, Inc.: Strategic Comparison

This in-depth comparison examines Carta, Inc. and Fiserv, Inc. across revenue, market value, business model, competitive positioning, and long-term growth strategy. Whether you are researching Carta, Inc. on its own, evaluating Fiserv, Inc., or weighing the two companies side by side, the breakdown below highlights where each company leads and where the gap between Carta, Inc. and Fiserv, Inc. is widest.

On the headline numbers, annual revenue is $442.0M (unaudited) (FY2024) for Carta, Inc. and $21.2B (FY2025) for Fiserv, Inc., while their respective market capitalizations stand at N/A and $25.0B. Both Carta, Inc. and Fiserv, Inc. are headquartered in United States. Their local markets and applicable rules may still differ.

Carta, Inc.: Carta is the system of record for who owns what in private companies and funds. Founders use it to issue options and model funding rounds, employees use it to see and exercise their equity, and VC, PE, and private credit managers use it to run fund accounting and LP reporting. That position between companies and investors is what lets Carta sell valuations, fund administration, and legal services. The company is headquartered in San Francisco, California.

Fiserv, Inc.: Most consumers never see the Fiserv name, but it is behind many everyday transactions: the Clover terminal at a coffee shop, the core ledger at a community bank, the debit card processing at a credit union, and online bill payment. That reach made Fiserv one of the most valuable fintech companies in the world by 2024. The 2025-2026 slowdown and guidance cuts have since reset its valuation to roughly $25 billion, well below its 2024 peak. The company is headquartered in Milwaukee, Wisconsin.

Carta, Inc. and Fiserv, Inc. pursue distinct approaches to generating revenue, and understanding how each company operates is the foundation of any fair comparison between Carta, Inc. and Fiserv, Inc..

Carta, Inc. business model: Carta sells annual software subscriptions plus service fees on both sides of the private market. Companies pay for cap table management, equity plan administration, and 409A valuations, with prices rising as stakeholder counts and funding stages grow. Investment firms pay for Fund ERP products: fund administration (software plus dedicated fund accountants), fund tax and K-1s, portfolio valuations, CRM, forecasting, and loan operations for private credit. Since May 2026, Carta Law adds outcome-based legal and compliance work such as NDAs, KYC, investor onboarding, and LP transfers. Sacra estimates that in 2023 cap tables and 409A valuations made up about 67% of ARR, fund administration about 27%, and private equity products about 5%. Carta shut its secondary trading business in January 2024, so brokerage is no longer part of the model.

Fiserv, Inc. business model: Fiserv earns mostly recurring, volume-based fees from two customer groups. Merchant Solutions charges merchants processing fees on card transactions, plus subscription and hardware revenue from Clover terminals and software, and fees from larger enterprise and e-commerce clients. Financial Solutions charges banks and credit unions multi-year account-processing fees for core systems such as DNA, Premier and Signature, along with digital banking, card issuing and processing, bill payment (CheckFree heritage) and debit network fees from Accel. Because a bank's ledger and a merchant's checkout both run on Fiserv systems, revenue tends to renew year after year rather than being resold each period.

The durability of a company's moat often decides long-term winners. Here is how the competitive advantages of Carta, Inc. stack up against those of Fiserv, Inc..

Carta, Inc. competitive advantage: Carta's main advantage is its two-sided network. Startups put investors on their Carta cap tables, investors adopt Carta for fund administration, and those funds steer portfolio companies to Carta. As a registered transfer agent holding the legal record of ownership, Carta is also costly to leave: switching means migrating years of grants, vesting schedules, and investor records. Its cap table data feeds 409A valuations, compensation benchmarks, and portfolio valuations for funds.

Fiserv, Inc. competitive advantage: Fiserv's main advantage is switching cost. Moving a bank's core ledger to a new vendor is a multi-year, high-risk project, so core banking clients rarely leave. Fiserv also sits on both sides of many transactions: it processes for card-issuing banks and for the merchants accepting those cards, and many of its bank clients refer local businesses to Clover. That bank distribution channel is something Toast and Square do not have.

Future prospects matter as much as current results. The growth strategies below explain how Carta, Inc. and Fiserv, Inc. each plan to expand from here.

Carta, Inc. growth strategy: Carta grows by selling more products to the firms already on its ledger. The playbook is to take a professional service (409A valuations, fund accounting, legal work), automate it, and tie the output to Carta's system of record. Fund ERP bundles fund administration, fund tax, portfolio valuations, data collection, forecasting, and CRM. Acquisitions fill gaps: Tactyc (fund forecasting), Sirvatus (private credit loan operations, October 2025), Accelex (AI data extraction, October 2025), ListAlpha (CRM), and Avantia (legal and compliance, May 2026).

Fiserv, Inc. growth strategy: Under the 'One Fiserv' plan launched in late 2025, management is reinvesting in technology, putting Clover at the center of its merchant strategy, adding AI and value-added services for banks, and simplifying the product portfolio. Georgakopoulos, who previously ran technology and merchant solutions as co-president, has emphasized execution on Clover, platform modernization and client service rather than large acquisitions.

A closer look at the financial trajectory of Carta, Inc. and Fiserv, Inc. rounds out the comparison.

Carta, Inc.: Carta does not publish audited financials. Henry Ward has said the company was approaching $500 million in annual recurring revenue in 2025. Sacra estimates revenue of about $373 million in 2023, $442 million in 2024 (+19%), and $515 million in 2025 (+16.5%), with growth slowing after the end of zero-rate venture funding. Carta raised its last primary round, a $500 million Series G led by Silver Lake and Lightspeed, at a $7.4 billion valuation in August 2021; a January 2022 employee secondary sale reportedly priced it at $8.5 billion. Total equity funding is roughly $1 billion.

Fiserv, Inc.: Fiserv's revenue climbed from $5.8 billion in 2018 to $10.2 billion in 2019 after the First Data deal and reached $21.19 billion in 2025, with GAAP EPS of $6.34. Adjusted revenue was $19.8 billion in 2025 and free cash flow was $4.44 billion. The trajectory then turned: in Q2 2026 GAAP revenue fell 4% to $5.29 billion, GAAP EPS dropped 37% to $1.17 and adjusted EPS fell to $1.84, although free cash flow stayed at $1.1 billion for the quarter. Management now expects 2026 organic revenue between -1% and flat. Fiserv, Inc. is a monumental global provider of financial services technology, commanding a market valuation that frequently exceeds $90 billion.