All payments made in the preview are in test mode. Read more
Ledgerline
San Francisco Bay Area — in-person & remote

Payments collections software, engineered in San Francisco.

We design and build collections infrastructure — dunning engines, smart retries, reconciliation, and recovery analytics — for companies that can't afford to leave revenue on the table. Reserve an engineering kickoff slot with a refundable $2,000 deposit.

View service tiers
PCI-DSS aware design Deposit fully refundable before kickoff Offices in SoMa, San Francisco
$140M+
recovered revenue processed
38
collections systems shipped
99.98%
webhook processing uptime
2 wks
from deposit to kickoff

Service tiers

Fixed-price engagements, payable directly on this page. Every project starts with the $2,000 kickoff deposit, credited in full toward your first invoice.

Kickoff Deposit

$2,000

Reserve your engineering slot

  • Holds your slot on our engineering calendar
  • Initial architecture intake session included
  • Credited in full toward your first invoice
  • Fully refundable before kickoff

Architecture Audit

$4,500

Two-week deep dive

  • Full review of your existing collections stack
  • Dunning, retry, and recovery funnel analysis
  • PCI-DSS scope assessment
  • Written architecture report & roadmap
Most popular

Core Engine Build

$18,000

6–10 week engagement

  • Custom collections & dunning engine
  • Smart retry logic with ML-informed timing
  • Stripe / ACH / card-present integrations
  • Compliance-ready audit trails
  • Weekly in-person working sessions in SF

Custom Enterprise

$38,000+

Scoped to your platform

  • Multi-PSP orchestration & failover
  • Embedded team of senior payments engineers
  • 24/7 incident response for payment flows
  • Quarterly architecture reviews
Inquire Scope

Architecture intake, done properly

Collections systems fail at the edges — duplicate charges, lost webhooks, ledger drift. Our intake process finds those edges before your customers do.

1. Architecture intake

We map your current payment flows, ledger model, PSP relationships, and failure modes before writing a line of code.

2. System design

A concrete blueprint: idempotency strategy, webhook handling, reconciliation, and recovery-state machines.

3. Compliance review

PCI scope, data residency, and audit requirements baked into the design — not bolted on after.

4. Build & ship

Weekly demos, production deploys from week two, and a handover your team can actually maintain.

Reserve your engineering kickoff slot

We take on a limited number of collections engagements per quarter. A $2,000 deposit holds your slot, covers the initial architecture intake session, and is credited toward your first invoice — or refunded in full if we kick off and it's not a fit.

  • Secure checkout, receipt emailed instantly
  • Deposit credited to your first invoice
  • Full refund available before kickoff
  • Kickoff within two weeks of deposit
Kickoff deposit
$2,000
Architecture intake sessionIncluded
Engineering calendar reservationIncluded
Credited toward first invoice−$2,000

Secure payment. No card details touch our servers.

535 Mission Street, SoMa

A San Francisco engineering partner

Payments is a local sport. Our team works from SoMa, minutes from the companies that built modern money movement. Bay Area clients get weekly in-person working sessions; everyone else gets the same rigor over video.

On-site workshops

Whiteboard your collections flow with senior engineers in our SoMa office.

Bay Area network

Warm intros to PSPs, fraud vendors, and fintech operators across the city.

Same-timezone support

Pacific-time coverage for launch weeks and incident response.

Remote-first delivery

Full engagement available remotely — SF presence is a bonus, not a requirement.