For fast-moving startups in 2026, managing cash is no longer just about tracking balances — it is about earning yield on idle funds, controlling spend in real time, and accessing capital when growth demands it. The five platforms on this list — Arc, Brex, Well, Fivemetrics, and Mav9 — each bring a different strength to treasury management, but all are built to scale with a startup’s pace rather than slow it down.
This list is specifically for founders, CFOs, and finance leaders at early-stage and growth-stage startups who need treasury tools that are fast to adopt, startup-friendly in pricing, and capable of growing alongside the business. Whether you are bootstrapping or venture-backed, these picks help you centralize cash operations without the overhead of traditional enterprise treasury systems.
How we picked these treasury management platforms
We evaluated each candidate on feature depth, pricing clarity, fit for the startup use case, and reliability. Platforms that offer free plans or transparent per-user pricing scored higher for early-stage teams, while those with AI-powered insights and integrations with modern accounting tools earned extra weight. We also prioritized platforms that can be set up in minutes, not months, and that provide real-time visibility into cash positions and spending. No platform was included based on source popularity — only on its ability to meet the specific needs of a growing startup.
Related shortlists: 10 Best Startup Financial Planning for Startups in 2026 and Top 7 Retirement Planning for Startups in 2026.
| Tool | Best for | Key features | Pricing | Free trial |
|---|---|---|---|---|
| Arc | startups that want to earn yield on idle cash while managing spend and accessing growth capital from one platform | Up to 4.08% net yield on brokerage balances, Cashback rewards on card spend, up to 2.0% on Enterprise, AI CFO assistant (Archie) for cash management questions | Essentials — up to 3.63% net yield | — |
| Brex | scaling startups that need a unified spend platform with corporate cards, bill pay, and real-time cash visibility | Unlimited corporate cards accepted in 210+ countries, AI-powered expense management with automated receipt capture, Real-time spend reporting and budget tracking | Essentials — Free | Free plan available |
| Well | SMBs and startups that want an all-in-one financial workspace covering bookkeeping, FP&A, payroll, and invoicing | Monthly AI token budgets from 3M to 25M depending on plan, Unlimited MCP connectors for tool integrations, Covers bookkeeping, FP&A, payroll, invoicing, CRM and taxes | Starter — $12/month | 14-day free trial |
| Fivemetrics | startups that need to track and control cloud, AI, and SaaS spending from a single dashboard | Consolidates billing from 24+ cloud, AI and SaaS providers, Volt AI agent investigates spend anomalies and drafts recommendations, Read-only access; no permission to modify infrastructure | Free — $0/month, up to $1,000/mo tracked spend | 14-day free trial on paid plans, no credit card required |
| Mav9 | investment teams and capital allocators who need AI-assisted analysis for treasury and private capital decisions | AI-powered capital allocation decision support, Combines proprietary knowledge with private data, ISO 27001:2022, SOC 2 and GDPR compliance | Pricing on request | — |
The best treasury management platforms in 2026
Each of the following platforms excels in a specific area of treasury management, from earning yield on idle cash to tracking cloud spend. Here is a closer look at what makes each one stand out for startups.
1. Arc
Intelligent cash management & growth capital for businesses
Arc is best for: startups that want to earn yield on idle cash while managing spend and accessing growth capital from one platform
Arc is a cash management and capital markets platform built for technology companies. It combines yield-bearing accounts (up to 4.08% net yield on brokerage balances), corporate cards with cashback rewards, and access to growth capital, all supported by an AI assistant for finance questions. It suits startups and tech companies looking for a modern alternative to traditional business banking for treasury.
Key Arc features
- Up to 4.08% net yield on brokerage balances
- Cashback rewards on card spend, up to 2.0% on Enterprise
- AI CFO assistant (Archie) for cash management questions
- Dedicated relationship manager on Premium and above
Arc pricing
- Essentials — up to 3.63% net yield
- Premium — up to 4.03% net yield (annual membership)
- Enterprise — custom pricing
2. Brex
The #1 spend platform for strategic finance teams
Brex is best for: scaling startups that need a unified spend platform with corporate cards, bill pay, and real-time cash visibility
Brex brings corporate cards, bill pay, and spend tools together so finance teams can manage cash and spending from one system. It offers unlimited corporate cards accepted in 210+ countries, AI-powered expense management, and real-time spend reporting. It works well for startups and scaling businesses that want to centralize cash management instead of juggling separate banking and expense tools.
Key Brex features
- Unlimited corporate cards accepted in 210+ countries
- AI-powered expense management with automated receipt capture
- Real-time spend reporting and budget tracking
- Integrates with major accounting and HRIS platforms
Brex pricing
- Essentials — Free
- Premium — $12/user/month
- Enterprise — custom pricing
- Free trial: Free plan available
3. Well
The Modern Financial Stack for SMBs
Well is best for: SMBs and startups that want an all-in-one financial workspace covering bookkeeping, FP&A, payroll, and invoicing
Well organizes bookkeeping, FP&A, payroll, invoicing, and taxes around a shared context rather than rigid workflows. It uses AI token budgets to power automation across connected tools through unlimited integrations. It suits SMB owners and operators who want one workspace for day-to-day finance instead of separate point tools.
Key Well features
- Monthly AI token budgets from 3M to 25M depending on plan
- Unlimited MCP connectors for tool integrations
- Covers bookkeeping, FP&A, payroll, invoicing, CRM and taxes
- Regional data processing, never used for AI model training
Well pricing
- Starter — $12/month
- Business — $35/month
- Scale — $80/month
- Free trial: 14-day free trial
4. Fivemetrics
Understand cloud and AI spend, then investigate what changed
Fivemetrics is best for: startups that need to track and control cloud, AI, and SaaS spending from a single dashboard
Fivemetrics consolidates billing data from cloud, AI, and SaaS providers into one dashboard so finance and engineering teams can see where money is going. Its Volt AI agent investigates cost spikes, explains anomalies, and drafts savings recommendations. It suits companies that want to track and control cloud and AI spend without replacing engineers' existing access.
Key Fivemetrics features
- Consolidates billing from 24+ cloud, AI and SaaS providers
- Volt AI agent investigates spend anomalies and drafts recommendations
- Read-only access; no permission to modify infrastructure
- Real-time anomaly alerts via Slack, Teams, email or PagerDuty
Fivemetrics pricing
- Free — $0/month, up to $1,000/mo tracked spend
- Starter — $9/month
- Pro — $29/month
- Business — $199/month
- Free trial: 14-day free trial on paid plans, no credit card required
5. Mav9
Time to allocate capital
Mav9 is best for: investment teams and capital allocators who need AI-assisted analysis for treasury and private capital decisions
Mav9 is a capital allocation platform that pairs AI with proprietary market knowledge and private data to support investment and treasury decisions. It is built as a cloud operating system for private capital management rather than a simple dashboard. It is aimed at investment teams and capital allocators who want AI-assisted analysis behind how they deploy funds.
Key Mav9 features
- AI-powered capital allocation decision support
- Combines proprietary knowledge with private data
- ISO 27001:2022, SOC 2 and GDPR compliance
- Access-request model rather than self-serve signup
Mav9 pricing
- Pricing on request
Which treasury management platforms should you choose?
If your startup holds significant cash reserves and wants to earn yield without moving money to a separate savings account, Arc is the clear first choice — it combines yield-bearing accounts, corporate cards, and growth capital in one platform designed for technology companies. For scaling startups that need a unified spend and expense management system with global acceptance, Brex offers a free Essentials plan and powerful AI-powered expense controls.
If you are an SMB or early-stage startup that wants to consolidate bookkeeping, FP&A, payroll, and invoicing into one workspace, Well provides a modern alternative to juggling multiple tools. For startups with significant cloud and AI infrastructure costs, Fivemetrics delivers a dedicated dashboard and AI agent to track and optimize that spend. Finally, if your startup is in the business of allocating capital or managing private investments, Mav9 brings AI-assisted analysis to treasury decisions in a way that no simple dashboard can match.
