Koca Ventures Ltd
71-75 Shelton Street
Covent Garden, London
WC2H 9JQ, United Kingdom
Registered in England & Wales — 16231043
TRANSACTION SYSTEMS
Financial Systems Built forLedger-Grade Throughput
We architect and build payment rails, banking ledgers, and settlement systems — using TigerBeetle (whose published benchmark exceeds 1M transactions per second), Kafka, and gRPC for throughput 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, on a database whose published benchmark exceeds 1M transactions per second.
WHAT WE BUILD
Transaction Architecture That Scales
01
TigerBeetle Ledger Core
Purpose-built financial database with ACID guarantees. TigerBeetle's published benchmarks: 1M+ transactions per second and order-of-magnitude gains over PostgreSQL on ledger workloads.
02
Event Streaming with Kafka
Apache Kafka backbone for durable, ordered transaction event streams. Replay, audit, and fan-out to downstream services — events are persisted before they are consumed.
03
gRPC Microservice APIs
High-performance, type-safe gRPC interfaces between services. The compact binary protocol cuts serialization overhead versus REST for high-volume inter-service financial calls.
04
Real-Time Fraud Detection
Graph neural network anomaly detection designed to flag suspicious transactions in-line, without blocking the payment flow.
DATABASE COMPARISON
TigerBeetle vs PostgreSQL for Ledgers
In TigerBeetle's published comparisons it outperforms PostgreSQL by roughly 22× on pure ledger throughput — it batches thousands of transfers per 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 | ~1M TPS in TigerBeetle's published benchmarks | 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
Carbon platform — retirement & audit trail
Carbon-credit tracking and retirement for a B2B carbon platform we built — purchases and verified retirements recorded with blockchain-anchored proofs and a CSRD-ready audit trail.
02
Payment Network Prototype
Proof-of-concept banking payment rail built on TigerBeetle and Kafka — high-throughput double-entry transfers load-tested 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 and hardware-level safety. Its developers publish benchmarks of 1M+ transactions per second and order-of-magnitude gains over general-purpose databases on double-entry ledger workloads, and it is designed never to corrupt financial data.
How fast can your transaction systems process payments?
Throughput depends on your workload and hardware. TigerBeetle's published benchmark exceeds 1M transactions per second; we design to your measured throughput target and load-test the full system against it before go-live.
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, so downstream consumers can fail and replay without losing events. 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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