Koca Ventures Ltd
71-75 Shelton Street
Covent Garden, London
WC2H 9JQ, United Kingdom
Registered in England & Wales — 16231043
TRANSACTION SYSTEMS
Financial Systems Built for1M+ Transactions Per Second
We architect and build high-throughput payment rails, banking ledgers, and settlement systems — using TigerBeetle, Kafka, and gRPC for throughput that generic databases cannot match.
TigerBeetle consulting is independent implementation and integration support for the TigerBeetle financial transactions database — including schema design (ledgers, accounts, transfers), VSR replication topology, client library integration, and hybrid Postgres-plus-TigerBeetle architecture. Koca Ventures provides UK-based, founder-led TigerBeetle engineering at production scale (up to 1M transactions per second).
WHAT WE BUILD
Transaction Architecture That Scales
01
TigerBeetle Ledger Core
Purpose-built financial database with ACID guarantees processing 1M+ transactions per second — 10–100x faster than PostgreSQL for ledger workloads.
02
Event Streaming with Kafka
Apache Kafka backbone for durable, ordered transaction event streams. Replay, audit, and fan-out to downstream services with zero data loss.
03
gRPC Microservice APIs
High-performance, type-safe gRPC interfaces between services. Binary protocol delivers 7–10x throughput over REST for inter-service financial calls.
04
Real-Time Fraud Detection
Graph neural network anomaly detection flags suspicious transactions in under 100ms without blocking the payment flow.
DATABASE COMPARISON
TigerBeetle vs PostgreSQL for Ledgers
TigerBeetle outperforms PostgreSQL by roughly 22× on pure ledger throughput because it executes up to 8,189 transfers per batched query and enforces double-entry constraints at the database level. Most production fintechs run both: TigerBeetle as the core debit/credit engine, PostgreSQL for reporting, user data, and analytics.
| Aspect | TigerBeetle | PostgreSQL |
|---|---|---|
| Schema | Fixed (ledgers, accounts, transfers) | Flexible, user-defined |
| Throughput | Up to ~1M TPS (22× faster for ledger workloads) | Lower under sustained ledger load |
| Query flexibility | Lookup by ID only | Full SQL |
| Safety | Built-in debit/credit + immutable | Enforced in app code or SQL |
| Atomicity with app data | Separate system (2PC required) | Single transaction |
| Best for | Core debit/credit engine | Reporting, user data, hybrid analytics |
CASE STUDIES
Transaction Systems We've Built
01
Atmosverde Carbon Ledger
Double-entry carbon credit ledger tracking enterprise buyer purchases and verified supplier issuances in real time, with immutable audit trail and reconciliation dashboards.
02
Payment Network Prototype
Proof-of-concept banking payment rail built on TigerBeetle and Kafka achieving 800K transactions per second on commodity hardware.
FREQUENTLY ASKED
Transaction Systems FAQ
What is a custom financial transaction system?
A custom financial transaction system is purpose-built software for processing high-volume payments, ledger entries, or transfers — designed around your business rules, compliance requirements, and throughput targets, rather than generic banking middleware.
What is TigerBeetle and why use it for financial systems?
TigerBeetle is a purpose-built financial transactions database with strict ACID guarantees, hardware-level safety, and 1M+ TPS throughput. It outperforms PostgreSQL by 10–100x for double-entry ledger workloads and is designed to never corrupt financial data.
How fast can your transaction systems process payments?
Systems built on TigerBeetle and gRPC can handle 1M+ transactions per second with sub-millisecond latency, suitable for banking core systems, payment networks, and high-frequency trading settlement.
How does Kafka fit into a financial transaction architecture?
Kafka acts as the durable event log between services — every transaction event is written to Kafka first, ensuring no data loss even if downstream consumers fail. It also enables audit replay, real-time analytics, and fan-out to reporting and fraud systems.
What compliance standards can your fintech systems meet?
Our systems are architected for PCI DSS compliance, GDPR data residency, and SOC2-aligned audit logging. We provide architecture review support for regulatory approval processes in banking and payments.
TRANSACTION SYSTEMS BY SECTOR
Financial Infrastructure Across Industries
Last reviewed:
READY TO BUILD?
Build Your Transaction System
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