Onramp vs Komainu — Head-to-Head Custody Comparison

An independent, data-driven comparison of Onramp and Komainu across security, insurance, fees, regulatory compliance, and more.

Verdict

Quick Verdict

Onramp scores 8.7 vs Komainu's 7.0. Onramp leads in 8 of 8 categories.

Onramp is better suited for Family offices, RIAs, HNW individuals. Komainu is better suited for Japanese institutions, European institutions, Banks.

8.7

Very GoodCustody Score

Onramp

GoodCustody Score

Komainu

Scores

Score Comparison

Weighted scores across all 8 custody criteria.

Criterion	Weight	Onramp	Komainu	Winner
Security	20%	9.5	8.5	Onramp
Insurance	15%	9.0	7.0	Onramp
Regulatory	15%	8.5	8.0	Onramp
Fee Transparency	10%	7.5	4.5	Onramp
Track Record	15%	8.0	6.5	Onramp
Withdrawal Flexibility	10%	8.5	6.5	Onramp
Reporting & Audit	10%	8.5	7.5	Onramp
Counterparty Diversification	5%	10.0	3.5	Onramp
Overall Score	100%	8.7	7	Onramp

Visual

Score Radar

Visual overlay of Onramp and Komainu across all categories.

OnrampKomainu

Deep Dive

Category-by-Category Analysis

A deeper look at how each provider performs in every scoring criterion.

Security (9.5 vs 8.5)

Onramp uses Multi-institution distributed key management with Varies by underlying custodian in cold storage and regular penetration testing. Compliance: Via underlying custodians (SOC 1 & SOC 2). Incident history: No incidents.

Komainu uses Ledger Vault enterprise custody key management with Majority cold in cold storage and regular penetration testing. Compliance: SOC 2. Incident history: No incidents.

Insurance (9.0 vs 7.0)

Onramp offers Aggregate coverage across multiple custodian insurance policies via Multiple (via underlying custodians). Each underlying custodian maintains their own insurance. Combined coverage exceeds single-custodian limits.

Komainu offers Institutional coverage via Via Nomura/partners. Backed by Nomura — Japan's largest investment bank.

Regulatory (8.5 vs 8.0)

Onramp holds State money transmitter licenses and is a qualified custodian operating in United States. Regulated through underlying custodian partnerships with qualified custodians

Komainu holds JFSC registered (Jersey) and is not a qualified custodian operating in Jersey / Asia / Europe. Regulated in Jersey. Nomura provides institutional credibility.

Fee Transparency (7.5 vs 4.5)

Onramp charges Contact for pricing in annual custody fees with 0.50% per trade (brokerage) per transaction. Also offers Onramp Finance: lowest-cost Bitcoin brokerage at 50bps, 5% APY on cash, 1.5% cashback card

Komainu charges Custom in annual custody fees with Custom per transaction. Nomura + Ledger + CoinShares joint venture.

Track Record (8.0 vs 6.5)

Onramp was founded in 2021 and is headquartered in Austin, TX. AUM: $1B+. Incident history: No incidents.

Komainu was founded in 2018 and is headquartered in St. Helier, Jersey. AUM: Not publicly disclosed. Incident history: No incidents.

Withdrawal Flexibility (8.5 vs 6.5)

Onramp withdrawal fees: Contact for pricing. Minimum account: $100,000. Supported assets: Bitcoin.

Komainu withdrawal fees: Network fees. Minimum account: Institutional only. Supported assets: Bitcoin, Ethereum, Multiple assets.

Reporting & Audit (8.5 vs 7.5)

Onramp: SOC compliance is Via underlying custodians (SOC 1 & SOC 2). As a qualified custodian, it meets SEC reporting requirements.

Komainu: SOC compliance is SOC 2. Not classified as a qualified custodian.

Counterparty Diversification (10.0 vs 3.5)

Onramp is a multi-institution custody provider. Key management: Multi-institution distributed custody — keys and assets spread across multiple independent regulated custodians (BitGo, Coinbase, Fidelity, etc.).

Komainu is a qualified custodian provider. Key management: Ledger Vault technology with Nomura institutional standards..

Fees

Fee Comparison

Side-by-side fee breakdown for Onramp and Komainu.

Fee Type	Onramp	Komainu
Setup Fee	Contact for pricing	Custom
Annual Custody	Contact for pricing	Custom
Transaction	0.50% per trade (brokerage)	Custom
Withdrawal	Contact for pricing	Network fees

Onramp: Also offers Onramp Finance: lowest-cost Bitcoin brokerage at 50bps, 5% APY on cash, 1.5% cashback card

Komainu: Nomura + Ledger + CoinShares joint venture.

Features

Feature Comparison

Checklist of features across both providers.

Feature	Onramp	Komainu
1.5% cashback card	✓	✗
5% APY on cash balances	✓	✗
Asia/Europe institutional focus	✗	✓
Bank-grade compliance	✗	✓
Bitcoin brokerage services (Onramp Finance)	✓	✗
CoinShares crypto expertise	✗	✓
Governance frameworks	✗	✓
Institutional-grade security and compliance	✓	✗
Ledger Vault technology	✗	✓
Multi-Institution Custody across multiple regulated custodians	✓	✗
No single point of failure	✓	✗
Nomura-backed	✗	✓
White-glove onboarding for institutions	✓	✗

Recommendation

Who Should Choose Which?

Onramp is better if you…

✓Are a family offices
✓Are a rias
✓Are a hnw individuals
✓Are a institutions
✓Want: Only provider offering true multi-institution custody — no single point of failure
✓Want: Aggregated insurance coverage exceeds any single custodian
✓Want: $1B+ in assets under custody demonstrates institutional trust

Komainu is better if you…

✓Are a japanese institutions
✓Are a european institutions
✓Are a banks
✓Are a asset managers
✓Want: Nomura backing — tier-1 investment bank
✓Want: Ledger's proven hardware security
✓Want: CoinShares' crypto market expertise

FAQ

Frequently Asked Questions

Is Onramp or Komainu better for Bitcoin custody?

Onramp scores 8.7 vs 7.0 in our weighted Custody Score. Onramp leads in 8 of 8 scoring categories. However, the best choice depends on your specific needs: Onramp is best for Family offices and RIAs, while Komainu suits Japanese institutions and European institutions.

What is the difference between Onramp and Komainu?

Onramp is a multi-institution custody provider, while Komainu is a qualified custodian provider. Onramp excels in Counterparty Diversification, whereas Komainu is strongest in Security.

How do Onramp and Komainu fees compare?

Onramp charges Contact for pricing annual custody fees with 0.50% per trade (brokerage) transaction fees. Komainu charges Custom annual custody fees with Custom transaction fees.

Which is more secure, Onramp or Komainu?

Onramp scores 9.5/10 for security while Komainu scores 8.5/10. Onramp uses Multi-institution distributed key management, and Komainu uses Ledger Vault enterprise custody.