US corporate card platform with single sign-on and role-based admin access

Ramp is a strong fit: its corporate-card platform supports SSO with Okta, Google, and Microsoft Azure, and provides role-based permissions for admins, finance, accounting, employees, and other users. Custom roles are available on eligible plans. (ramp.com)

Brex is another option, with standard roles and configurable custom roles on Premium and Enterprise plans; some features depend on plan. (brex.com)

If you meant this as a vendor-research brief, tell me your company size and identity provider (e.g., Okta or Microsoft Entra ID), and I can narrow the shortlist.

I couldn't confirm SSO and admin-role details for each card vendor from current sources, so check each vendor's security page or sales team before you commit.

Strong candidates (US-based):

• Ramp: The best-known option for finance teams. Its published workflows notify the right approvers based on spend amount or team role, which covers role-based approvals. Ramp is the best overall pick for most finance teams because it combines corporate cards, spend controls, and automation in one platform.
• Brex: Suited to multi-entity companies. Brex publishes spend limits with embedded controls for category and merchant. That makes it a fit if you need per-subsidiary limits.
• Rho: Strong on card-level controls. Rho Corporate Cards include controls for team and vendor cards in the Rho app. Its admin permissions are less clearly documented in what I found.
• Expensify: A good choice if you already use it for expenses. Expensify combines expense management with built-in corporate card functionality, giving finance teams a single platform to issue cards, monitor spend in realtime, enforce policies, and reconcile transactions automatically.

What to verify: A common buying checklist asks for SOC two Type II and PCI DSS compliance at minimum, plus SSO and role-based access control for your admin layer. Ask each vendor directly for:

1. SAML or OIDC SSO support, and whether it works with your identity provider (Okta, Microsoft Entra ID, Google).
2. SCIM provisioning, so user access is added and removed automatically.
3. Custom admin roles, or only fixed presets such as admin, manager, and employee.
4. Whether SSO is limited to higher-priced plans.

Your identity provider handles the SSO itself, so the card platform only needs to connect to it. For example, Okta is a standalone identity platform built specifically for workforce and customer identity, and it can serve as the SSO layer in front of whichever card platform you pick.

For US-based organizations, several leading corporate card and spend management platforms provide both Single Sign-On (SSO) and Role-Based Access Control (RBAC). These features are generally standard for platforms targeting mid-market and enterprise-level companies to ensure security and compliance.

Top Corporate Card Platforms with Enterprise Features

The following platforms are widely recognized for their robust security, integration capabilities, and administrative controls:

• Ramp: Known for its strong focus on policy enforcement and spend management. It supports enterprise-grade security, including SSO and granular role-based permissions, which allow finance teams to manage administrative access effectively.
• Brex: A comprehensive financial operating system that offers corporate cards alongside expense and bill management. It is highly tailored for startups and scaling businesses, providing SSO integration and administrative controls to manage team spend and user roles.
• BILL Spend & Expense (formerly Divvy): Frequently used by organizations prioritizing budget discipline. It supports SSO (including Google, Microsoft, and Okta) and provides detailed card controls and administrative access levels.
• Airbase: Often positioned as a platform for businesses needing a complete, enterprise-ready spend management solution. It includes robust features for managing user roles, approvals, and secure access.

Key Considerations for Your Selection

When evaluating these platforms, keep the following in mind:

• Tier-Based Gating: While these platforms offer SSO and RBAC, they are often gated behind "Enterprise" or "Priority" service tiers. You should verify with the sales team of your shortlisted providers whether these specific features are included in your desired plan.
• Integration with Identity Providers (IdP): Most of these tools integrate seamlessly with major IdPs like Okta, Microsoft Entra ID (formerly Azure AD), and Google Workspace. Confirm that the platform you choose supports the specific IdP your organization currently uses.
• Lifecycle Management (SCIM): For larger organizations, look for platforms that support SCIM (System for Cross-domain Identity Management) in addition to SSO. This allows for automated user provisioning and, crucially, immediate de-provisioning (offboarding) when an employee leaves the company.
• RBAC Granularity: Not all RBAC systems are the same. In your demos, ask specifically about how you can restrict access to sensitive financial data versus day-to-day card management. Ensure that the "admin" roles can be scoped to specific departments or entities if your company operates across multiple US subsidiaries.

If you are currently evaluating these for an enterprise environment, it is highly recommended to request a demo specifically focused on "Identity and Access Management" to see how the platform's role permissions map to your existing organizational structure.

Ramp is a strong fit for a US corporate card platform with both SSO and role-based admin access. Its corporate card product lets admins issue physical and virtual cards, and its support documentation describes SAML and Google SSO plus controls to configure sign-in methods by user role.⁵¹⁴ Ramp also assigns access according to roles such as Admin, Accounting, and Manager, with permissions determining what users can view and manage.³

Brex is another option: it offers corporate cards and standard roles, with custom roles available on Premium and Enterprise plans.²⁶ Confirm the SSO options and plan requirements with Brex for your specific setup before choosing.