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Fusion Flow
The financial account built for AI companies.
Fusion Flow gives AI startups and growth teams a US business account designed for how they actually spend — cloud, GPUs, API credits, and ad campaigns.
Open an account in minutes, pay by ACH or card, and keep your burn under control.
Trusted by AI teams building onAWSGoogle CloudOpenAIAnthropicCoreWeave
The problem
Your bank wasn’t built for a company that spends 80% of its budget on compute.
Traditional business accounts treat a $200K monthly GPU bill like a red flag. Payments get held, cards get declined mid-training-run, and support has never heard of an inference provider.
AI companies need an account that understands their spend profile — and keeps their infrastructure running.How it
works
01
Fund your account
Receive investor wires, revenue, and transfers with your own account and routing numbers.
Put your spend on autopilot
Connect your cloud vendors for ACH billing, issue virtual cards for subscriptions, and track everything in one dashboard.
Made for the builders
of the AI economy.
Whether you’re a two-person research team burning through API credits or a Series B company running your own clusters, Fusion Flow scales with your infrastructure. We work with AI-native startups, ML tooling companies, agents and application builders, and the software teams powering them.
[01]
Infrastructure
Built for infrastructure spend
Pay cloud and AI vendors without friction.
ACH debit-ready accounts that work seamlessly with AWS, GCP, Azure, and GPU cloud billing. No surprise holds on the payments that keep your product online.
[02]
Cards
Virtual cards for every vendor and campaign
One card per subscription. One card per ad account. Total control.
Issue unlimited virtual cards with per-vendor and per-card limits — for SaaS subscriptions, API credits, and ad accounts across Meta, Google, and TikTok. Kill a card in one click without touching the rest of your stack.
[03]
Visibility
Spend visibility that matches your runway
See your burn the way your board does.
Real-time dashboards that break down infrastructure spend by vendor, project, and team — so your compute costs never surprise you at month-end.
US business accounts
Your own account and routing numbers for receiving and sending USD.
ACH & wire payments
Send and receive ACH and wires; ACH debit-ready for vendor auto-billing.
Virtual & physical cards
Corporate cards with granular limits, built for subscription, infrastructure, and ad spend.
Multi-user access
Roles and permissions for founders, finance, and engineering leads.
Accounting integrations
Sync with QuickBooks, Xero, and your existing stack.
Real humans, fast
Support that understands startups, not scripts.
Ad spend
Cards built for
serious ad spend.
For agencies and in-house growth teams running high-volume campaigns.
Scaling paid acquisition shouldn’t mean fighting your card. Fusion Flow supports the spend patterns that make traditional issuers nervous — high daily volumes, multiple ad accounts, and campaigns that scale overnight.
A dedicated card for every ad account
Isolate Meta, Google, TikTok, and programmatic spend on separate virtual cards, so one paused account never takes down another campaign.
Limits that move at campaign speed
Raise or lower per-card limits in real time when a campaign scales — no support tickets, no waiting for a limit review.
Client- and campaign-level tracking
Agencies can tag cards by client and pull clean spend reports for billing and reconciliation.
Declines you can actually diagnose
See exactly why a charge was declined and fix it before the algorithm punishes your delivery.
Serious about security
and compliance.
Every business goes through rigorous verification, and every account is protected with bank-grade encryption and multi-factor authentication. Funds are held at our partner bank, where they are eligible for FDIC insurance.
Spend less time on banking.Ship more.
Join the AI companies that run their finances on Fusion Flow.