Rho

What Rho is, in 2026

Rho is a US business banking platform built for mid-market and growth-stage finance teams. Founded in 2018 by Everett Cook and Alexander Wheldon, headquartered in New York, with roughly 300 employees and approximately $200M of cumulative venture funding through its Series C rounds. The customer base skews mid-market — Series B-and-later growth-stage companies, holding structures with multiple US-incorporated entities, and finance teams whose next hire is a controller rather than a bookkeeper.

The product is a three-layer stack: Rho Business Banking (free FDIC-insured operating account at Webster Bank), Rho Corporate Card (charge card with spend-policy controls), and Rho AP (AP automation with invoice OCR and approval workflows). Rho Treasury sits across both the banking and treasury layers, extending FDIC pass-through to $75M via a sweep network anchored by Webster Bank plus additional partner banks, and offering a money-market-fund yield tier for idle cash. ERP integrations span NetSuite, QuickBooks Online, Xero, Sage Intacct, and Microsoft Dynamics 365 Business Central.

Two structural facts to hold together: Rho is not a chartered bank, and Rho deposits are FDIC-insured pass-through up to $75M. Both are true, and the partner-bank-fintech model is the bridge between them.

At a glance

Who Rho is for: US-incorporated mid-market growth-stage companies and SMBs that want a free FDIC-insured operating account paired with corporate cards and AP automation in one stack — especially multi-entity holding structures (parent + subsidiaries, multiple US-incorporated LLCs under common ownership) where consolidated finance operations matter. The Series B-and-later band is the structural sweet spot. Strong fit for finance teams running NetSuite, Sage Intacct, or QuickBooks Online with measurable cash flow and a real expense policy.

Who to avoid Rho for: pre-revenue solo founders (Mercury's onboarding is more paved); non-US-incorporated businesses (Rho is US-only, no UK / EU / APAC entities); operators whose primary need is procurement intake-to-pay or SaaS-subscription management (Ramp Plus is the structural fit); businesses that need a revolving credit option (Rho Card is charge-only); and finance teams whose AP volume is dominated by international wires (Wise Business or Airwallex covers cross-border-payments better).

Safety in one sentence: deposits are FDIC-insured pass-through up to $75,000,000 per customer when enrolled in Rho Treasury sweep, distributed across Webster Bank (Member FDIC) plus partner-bank-network institutions in $250,000 buckets, with the standard $250,000 ceiling applying to non-sweep balances at any individual partner bank.

Bank structure & deposit protection

The structural truth first: Rho is not a chartered bank. Rho Business Corporation is a Delaware corporation operating a business banking experience on top of FDIC-insured partner banks. Customer funds sit at Webster Bank (Member FDIC), the primary sponsor, with additional sweep-network banks rotating in and out of the Rho Treasury allocation list. Rho holds no banking licence and does not lend against customer deposits — it is the technology and customer-experience layer on top of a chartered-bank stack.

The partner-bank model means the FDIC counterparty is the partner bank, not Rho. If Rho Business Corporation entered financial distress as an entity, customer deposits would not be exposed to Rho's creditors — the funds are titled at the partner bank in the customer's name or in an FBO (For-Benefit-Of) custodial account titled for the customer's benefit, and would remain accessible through the partner bank. This is the standard structural premise of every banking-as-a-service arrangement, and Rho's account agreement discloses the relationship explicitly.

The differentiating feature is Rho Treasury, which extends FDIC pass-through cover to $75,000,000 per customer by enrolling deposits in a sweep network anchored by Webster Bank plus additional FDIC-insured partner banks. The sweep auto-distributes customer balances in $250,000 buckets across the network — each bucket sits at a different bank and qualifies for full FDIC coverage in its own right. The customer sees a single Rho operating-account balance; underneath, the funds are spread across the network. The $75M headline cap reflects the breadth of the participating-bank list (materially wider than Mercury's $5M or Brex's $6M) and is the structural feature most operators evaluating Rho cite as the deciding factor when treasury-policy cover above $5M is a real constraint.

Two pre-conditions apply to the $75M figure, same shape as Mercury's IntraFi sweep. First, the customer must opt in to the sweep program — non-sweep balances at a single partner bank are capped at the standard $250,000 FDIC ceiling. Second, the customer must monitor for partner-bank overlap: existing deposit relationships at any of the participating sweep banks aggregate against the $250,000 ceiling for that bank. Verify the current participating-bank list against your other banking relationships before treating the headline $75M as load-bearing for treasury policy.

Rho Treasury's MMF leg is NOT FDIC-insured. The treasury product splits idle cash between the FDIC-insured sweep leg (described above) and a money-market-fund leg held in a brokerage account at Rho's custody partner. Brokerage cash is protected by SIPC up to $500,000 with a $250,000 cash sub-limit, which covers custodian failure rather than market loss. The distinction matters: a customer who routes $10M from the sweep leg to the MMF leg moves the same dollars from FDIC-insured deposit cover to SIPC-covered investment holdings, and the legal protection regime changes accordingly. Customers planning treasury policy on the headline yield should model the post-fee net yield against the holding period AND understand which protection regime applies to each slice of the balance.

The fee schedule

Rho's pricing is one of the simpler schedules in the US business-banking category. The Standard tier is free — no monthly fee, no minimum balance, unlimited domestic ACH, free domestic wires, and free Rho Corporate Card issuance. Rho monetises through interchange (Visa-network fees earned on Card spend) and the spread on Treasury yield rather than per-transaction fees on the operating account. Enterprise pricing is custom and tracks multi-entity consolidation, advanced ERP middleware (Workday Financials, NetSuite OpenAir), and dedicated CSM rather than seat counts.

The line item most operators want to model before committing operating cash is the Treasury management fee on the sweep + MMF blend. The exact rate is published in the Rho Treasury terms and varies by product mix; the post-fee net yield is what matters for treasury policy. On a multi-million-dollar balance, a 10–20 bp difference in the management fee is meaningful relative to a self-directed money-market position at Vanguard or Fidelity — model against an external broker before assuming the in-platform yield is optimal for the full balance.

Hands-on notes

The application flow for a Delaware C-Corp or LLC is fast — typically 15–30 minutes to submit, with a same-day-to-next-business-day decision when the entity documentation is clean. Required artefacts: certificate of incorporation, IRS EIN letter, beneficial-ownership disclosure under FinCEN's 25%-or-more rule, ID for each beneficial owner, and operating-account history via Plaid (Rho underwrites on the entity's cash flow signal, not the founders' personal credit). Multi-entity setups can be onboarded sequentially under one finance-team login — the first entity clears, subsequent entities follow with shared admin permissions.

Once onboarded, the operating-account experience is the strongest part of the Rho product. ACH + wire functionality is competitive with the partner-bank set (Mercury, Brex Cash); cash deposits are not supported (typical for the category); and the wire UX is one of the cleaner implementations among partner-bank fintechs. The Rho Corporate Card issues physical and virtual instantly via the dashboard, with per-employee and per-vendor spend controls, merchant-category gating, and approval-required thresholds enforced at the network authorisation layer rather than after-the-fact reconciliation.

The multi-entity consolidation feature is the structural workflow win that distinguishes Rho from Ramp and Brex. A finance team running 5 legal entities (parent + 4 subsidiaries, holding-company structures, multi-US-incorporated LLCs under common ownership) can manage all 5 under a single login, with: consolidated treasury reporting that aggregates across entities; per-entity ERP integration mapping (entity A syncs to NetSuite, entity B to QuickBooks); cross-entity AP visibility for shared-vendor management; and consolidated audit log for SOC 2 evidence. Where Ramp and Brex require Enterprise-tier pricing for the equivalent consolidation, Rho ships it on the Standard tier.

The ERP integration set covers NetSuite, QuickBooks Online, Xero, Sage Intacct, and Microsoft Dynamics 365 Business Central with bidirectional sync. Custom-field mapping, class/department /location-level routing, and multi-entity ERP support are first-class. Workday Financials and Oracle Cloud integrations exist via Enterprise-tier middleware partnerships — expect 2–6 weeks of implementation rather than a same-day connector.

Friction points that show up in actual usage. Customer base is smaller than Mercury or Brex — Rho's third-party ecosystem (Slack-bot integrations, Zapier triggers, community-maintained middleware) is correspondingly smaller, and some long-tail SaaS integrations require custom API work. International AP via SWIFT correspondents carries the usual unpredictable intermediary-bank fee surface; for high-volume cross-border AP, layer Wise Business or Airwallex on top rather than routing through Rho. Procurement intake-to-pay and SaaS-subscription management are not native — operators who need those should layer Ramp Plus or evaluate Productiv / Vendr separately.

Plan & tier comparison

Rho's tier line-up is narrower than most competitors because the platform is genuinely free-tier-first: Standard covers the full Banking + Card + AP + Treasury stack at zero monthly cost, monetised entirely through interchange and Treasury yield spread. Enterprise pricing is custom and tracks the depth of consolidation + middleware + dedicated support rather than seat counts.

The decision pivot from Standard to Enterprise is rarely seat economics — it's whether the company's ERP stack is Workday Financials or Oracle Cloud (Enterprise middleware required), or whether multi-entity reporting needs go beyond what the out-of-box consolidation surface delivers. Most Series B-and-later companies stay on Standard until the controller hires a finance-ops manager and the close-the-books complexity outgrows the Standard reporting.

Caveats

Smaller customer base than Mercury or Brex. Rho is newer and the third-party integration ecosystem (Zapier triggers, community Slack-bots, long-tail SaaS-connectors) is correspondingly thinner. For mainstream ERP integration (NetSuite, QBO, Xero, Sage Intacct) the depth is competitive; for unusual middleware needs, expect more custom API work than at the larger platforms.

The $75M sweep cap is a cap on insurance, not on deposits. Funds above the sweep ceiling are not rejected — they are held at partner banks but become uninsured above the per-bank $250,000 ceiling for any non-distributed slice. Operators with operating-cash balances above $75M should structure across multiple banking relationships rather than rely on a single Rho Treasury for the full balance.

Rho Corporate Card is charge-only. Statement balance is direct-debited at close. No revolving credit option. Operating-account balance must always be sized to cover projected card spend so autopay always clears — same operational discipline as Ramp Card and Brex Card.

No procurement intake-to-pay. Ramp Plus, Brex Premium, and dedicated tools (Vendr, Tropic) cover the procurement workflow that Rho does not. If procurement is the deciding factor for the spend-management layer, Rho is not the structural fit — pair Rho's banking with a dedicated procurement product instead.

US-only. No UK / EU / APAC entities, no multi-currency operating accounts, no local IBAN issuance. International payments route via SWIFT correspondents from the USD operating account with the usual intermediary-bank fee surface.

Operational fragility from the BaaS stack. Same caveat that applies to Mercury and Brex: the partner-bank-fintech model has more operational links in the chain than a direct chartered-bank relationship. The 2024 Synapse collapse did not affect Rho (Rho was not a Synapse customer), but the structural lesson is industry-wide and not Rho-specific. Confirm the current sponsor-bank list and the resolution mechanics in the account agreement before treating a multi-million-dollar balance as load-bearing for cash-management policy.

Rho vs. Ramp vs. Brex

The three platforms span the US mid-market business-banking-and-spend stack and overlap meaningfully — but the structural fits are distinct and many mid-market finance teams end up running two of the three in parallel rather than choosing one.

Rho vs. Ramp. Ramp leads with the corporate card and treats the deposit account as a beta opt-in; Rho leads with the FDIC-insured operating account and layers the card and AP on top. For a finance team where the operating-cash deposit account is the dominant question (treasury policy above $5M, multi-entity consolidation, integrated AP and card under one stack), Rho is the structural fit. For a finance team where procurement intake-to-pay, SaaS-subscription management, and the deepest expense-policy engine are the dominant questions, Ramp Plus is the structural fit. Many growth-stage companies run both — Rho for banking and AP, Ramp Plus for procurement and SaaS spend.

Rho vs. Brex. Brex sells Brex Card (charge) and Brex Cash (partner-bank deposit with FDIC pass-through up to $6M) as integrated products. The structural difference: Rho's $75M sweep cap is materially higher than Brex's $6M, and Rho's multi-entity consolidation is more first-class than Brex's equivalent. Brex's advantage is the YC-cohort onboarding network effect, the corporate-card credit underwriting model on funded balance sheets, and the broader integration ecosystem from a longer market history. For a venture-funded YC-pattern startup that wants the integrated Card + Cash + spend-management stack and trusts Brex's credit underwriting, Brex is the structural fit. For a mid-market multi-entity finance team that prioritises deposit-cover ceiling and consolidation reporting, Rho is the structural fit.

FAQ

Is Rho a bank?

No. Rho Business Corporation is a Delaware corporation operating a corporate banking platform on top of FDIC-insured partner banks. The primary sponsor is Webster Bank (Member FDIC). Rho holds no banking licence — it is the technology layer; the FDIC pass-through cover applies to customer deposits at the partner-bank level.

How does Rho get to $75M of FDIC pass-through?

Rho Treasury enrols customer balances in a sweep network anchored by Webster Bank plus additional FDIC-insured partner banks. Funds are auto-distributed in $250,000 buckets so each bucket sits at a separate FDIC-insured bank with its own ceiling. The $75M cap reflects the breadth of the participating-bank list — materially wider than Mercury ($5M) or Brex ($6M). Conditional on opt-in and on no overlap with existing relationships at the same network banks.

How does Rho differ from Ramp and Brex?

Three axes. Deposit posture: Rho leads with the operating account ($75M sweep); Ramp leads with the card (deposit account in beta); Brex sells both Card and Cash ($6M sweep). Multi-entity: Rho ships consolidation first-class; Ramp / Brex gate to Enterprise. Procurement: Ramp Plus includes it; Rho does not. Choose Rho when multi-entity banking is the priority; Ramp when procurement is; Brex when YC-cohort onboarding and integrated underwriting matter.

Are Rho Treasury yields FDIC-insured?

Partially. The sweep leg is FDIC-insured (Webster Bank + partner-bank network, up to $75M). The money-market-fund leg is SIPC-covered at the brokerage layer ($500K with a $250K cash sub-limit), not FDIC. Customers who need pure FDIC cover should hold the balance on the sweep leg.

Does Rho support multi-entity holding-company structures?

Yes — multi-entity consolidation is first-class on the Standard tier. A finance team can manage multiple legal entities under one login, with consolidated treasury reporting, cross-entity AP visibility, and per-entity ERP mapping. Structurally different from Ramp / Brex where multi-entity is Enterprise-tier custom implementation.

Can non-US founders open a Rho account?

Only with a US-incorporated entity — Delaware C-Corp, LLC, or S-Corp with US EIN and beneficial-ownership disclosure. International founders typically incorporate first via Stripe Atlas, Firstbase, or Clerky and then apply. No non-US entity onboarding.

What happens if Webster Bank fails?

Sweep-enrolled balances are spread across the partner-bank network in $250K buckets — single-bank failure caps the at-risk slice at $250K per customer at that bank. FDIC resolution within the statutory window. Non-sweep balances at a single failed partner bank would be capped at the standard $250K ceiling.

Who Rho is for

Use Rho if you run a US-incorporated mid-market or growth-stage company (Series B-and-later band is the structural sweet spot), want a free FDIC-insured operating account paired with corporate cards and AP automation, need sweep coverage above the $5M Mercury ceiling, and run multiple legal entities under shared finance operations. The deep ERP integration set (NetSuite, Sage Intacct, QuickBooks Online, Xero, Microsoft Dynamics) plus the first-class multi-entity consolidation feature makes Rho the structural fit for finance teams whose accounting stack or holding-company structure is the deciding factor.

Use Mercury, Brex Cash, or a chartered alternative if you are pre-revenue or YC-cohort early-stage (Mercury's onboarding is more paved), if you are venture-funded and want integrated credit underwriting (Brex), if procurement intake-to-pay or SaaS-subscription management is the deciding factor (Ramp Plus is the structural fit), if you need a revolving corporate-card option rather than charge-only, or if your business is incorporated outside the United States (no UK / EU / APAC equivalent exists).

References

Primary-source list, capture date 2026-05-14. Rho's account agreement, Treasury program disclosures, and partner-bank list shift across quarters; operators treating these figures as load-bearing for treasury policy should re-verify against the source URLs at decision time.

• Rho — Legal & disclosures (account agreement, program terms)
• Rho — Treasury program disclosure (sweep mechanics, Webster Bank sponsor)
• Rho — Banking product overview
• Rho — Corporate Card cardholder agreement
• Rho — AP automation product overview
• Rho — Multi-entity treasury management
• Rho — Press & announcements (funding rounds, product launches)
• Webster Bank — Banking-as-a-Service partnerships (primary Rho sponsor)
• FDIC BankFind — Webster Bank (verify current FDIC cert)
• FDIC — General Counsel's opinion 8: pass-through deposit insurance
• FDIC — Electronic Deposit Insurance Estimator (EDIE)
• FinCEN — Money Services Business registration (BSA/AML for AP)
• CFPB — Credit card vs. charge card (regulatory distinction)
• Visa USA Inc. — Commercial card programs (network operator)
• IRS — Form SS-4: Application for Employer Identification Number

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