Custom lead generation software / San Francisco
Custom lead generation software development in San Francisco
Bay Area sales teams need funding, hiring and product signals joined together, not another generic contact database.
San Francisco build sheet
Work is remote and the records are public, so where your office sits does not change the build — but which counties publish what absolutely does.
We build lead-generation software for San Francisco and Bay Area companies. The work is engineering, not list brokering. We write crawlers against public and publicly accessible sources, normalize what comes back, verify it, and deliver it into your stack on a schedule you control. You own the repository and the database. If we stop working together, nothing turns off and nothing expires. That matters more here than most places, because Bay Area teams tend to build sales processes around a data source and then discover the vendor changed its terms.
The Bay Area problem is not finding companies. It is knowing which ones changed this week. A new entity registered. A lab taking space and pulling tenant-improvement permits. A team posting six engineering roles after a quiet quarter. Those signals live in different places and none of them arrive as a clean feed. We build the collector for each, join them on a resolved company record, and score the result against your definition of a good account. Builds start at $1,500.
Public sources in California
- California Secretary of State entity registrations
- San Francisco and county building permit records
- California state professional and contractor licensing boards
- SF DataSF and regional municipal open-data portals
Coverage is uneven by county and agency. Some publish daily with contact details attached; some publish an address and nothing else. Which of these actually carry your market is the first thing we map — before any code is written or any invoice is sent.
San Francisco industries we build for
B2B SaaS and developer tools
Every SaaS team here buys the same enrichment data and runs the same plays. The differentiator is timing. Crawlers over career pages, changelogs, documentation sites and public technology footprints detect stack changes and team growth, which predicts a buying window far better than a static employee-count field.
Venture, private equity and financial services
Deal teams and the service firms around them need to see new entities and new officers early. California Secretary of State filings publish formations and statements of information continuously. Software that diffs those, resolves officer names and suppresses agent-of-record noise turns a raw registry into a sourcing queue.
Biotech and life sciences
Vendors selling equipment, reagents and lab services find new facilities after the buildout is finished. Tenant-improvement permits in South San Francisco and the peninsula, joined to county assessor records and entity filings, identify labs while they are still specifying and purchasing rather than after.
Commercial real estate and facilities services
Brokers, movers, AV integrators and facilities vendors compete for the same tenant moves. Permit records, business registration certificates and municipal open-data releases show occupancy changes before signage does. A pipeline watching those weekly, keyed to building address, produces a tenant-change alert list nobody else has.
Professional services and compliance
Firms selling accounting, employment law, insurance and security compliance want companies at specific thresholds. Public filings, licensing rolls and hiring signals together approximate headcount and stage. Custom scoring beats a vendor's employee bucket because you define the threshold that matches your service.
Three builds that fit this market
Concrete examples, not a menu. Every real build is scoped to one company's sources and sales motion.
Multi-signal account scoring and ranking pipeline
Crawls target-company career pages, public technology footprints and California entity filings, resolves everything to a single company record by domain and legal name, then scores accounts on the signals you weight. Sales sees a ranked queue with the underlying evidence attached. Runs nightly, writes to your CRM, and suppresses accounts already in an open opportunity.
Lab and office buildout permit watcher
Monitors tenant-improvement and construction permits across San Francisco and peninsula jurisdictions, filters to lab and office use, and joins each record to the property owner from county assessor data and the occupying entity from state filings. Output is an alert the day a permit posts, with address, scope, owner and contractor for the rep covering that submarket.
Entity and officer change detection service build
Reads California Secretary of State registrations and statements of information on a schedule, diffs against the prior snapshot, and flags new entities, officer changes and address moves in your coverage counties. Verifies contact deliverability, appends a matched domain where one exists, and delivers through a webhook so your workflows fire in real time.
What every build includes
Scope and fixed price
One call, then a written scope with a number on it. No hourly billing and no scope drift.
Source map first
What exists in California, what it publishes and how often — delivered before development starts.
Clean output
Normalisation, deduplication and verification, so what lands in your CRM is workable on arrival.
Code in your hands
Repository, runbook and delivery pipeline transferred to you. Hosting is optional, never a lock-in.
Build types
Lead Scraper Development
A scraper built for one job: your sources, your fields, your filters — running on a schedule and dropping clean records where your team already works.
Read more →Custom Web Scraping Services
Public web data, extracted properly: parsed, deduplicated, verified and delivered in a format your team can work the same morning.
Read more →Data Enrichment & Verification
Take the list you already have, fill the gaps from public sources, kill the dead records, and keep it that way on a schedule.
Read more →Custom Lead Database
A private database of your market — built once from public sources, kept current automatically, searchable by the people who have to call it.
Read more →Lead Generation Automation
The whole chain, wired end to end: find, verify, score, route, notify. No one on your team copying rows between tools.
Read more →CRM Integration & Lead Routing
Get sourced records into the system your reps already live in — matched, deduplicated against what is already there, and assigned correctly on arrival.
Read more →Lead Scoring & Prioritisation
Rank the list before anyone dials it — on signals from your own closed deals, not a vendor's black box.
Read more →Public Records Data Mining
Government registers publish business events every day — new entities, new licences, new permits. Software that watches them turns filings into first-mover leads.
Read more →San Francisco questions
How do you keep a scraper running when the source site changes?
We build parsers defensively and monitor them. Each collector validates its output against an expected schema and record volume, and alerts when either drifts. Most breakages are layout changes we patch quickly. Because you hold the code, your own engineers can fix it too. We offer a maintenance retainer, but it is optional and not a condition of owning the build.
Can you join our internal data with public records?
Yes, and it is usually where the value is. We match your CRM accounts against public entity, permit and licensing records by name, domain and address, then flag conflicts rather than overwriting silently. That surfaces duplicates you already have, accounts that changed legal name, and closed-lost records that just registered a new location worth reopening.
Do we own the code or is it licensed to you?
You own it. The repository, the collectors, the schema and the collected data transfer to you at delivery. We do not resell what we build for you and we do not hold the pipeline hostage on a subscription. If you want us to host and run it, we will, but that is a separate hosting arrangement you can cancel without losing the system.
Before you commit to a build
Building for a San Francisco company?
Tell us the businesses you want to reach and how you find them today. You get a source map for San Francisco Bay Area, a fixed price, and a straight answer if software is not the right call.