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San Mateo County, California

San Mateo County New Business Filing Leads

Every week, get a fresh list of brand-new San Mateo County fictitious business name (FBN/DBA) filings — the business name and the date it was filed, pulled straight from the county’s official records and delivered before your competitors have made a call.

Updated WeeklyOfficial County RecordsCSV Export
~730,000

County Residents

San Mateo County is the Peninsula between San Francisco and Silicon Valley

Weekly

Fresh Filings

New FBN statements added every week

40 days

To File

California businesses must file within 40 days of starting

First

Mover Advantage

Reach owners before they choose their providers

Population figures are approximate (U.S. Census, 2024). Filing data is compiled from San Mateo County public records.

The first-mover advantage

A Brand-New San Mateo Business Is Your Most Motivated Prospect

A business that just filed its fictitious business name in San Mateo County has dozens of decisions still open — payment processing, insurance, payroll, banking, a phone system, a website, an accountant, a place to lease. Almost none of those vendors have been chosen yet.

That window closes fast. Within weeks, the new owner has picked their providers and stopped taking cold calls. The rep who reaches them first, while the decisions are still open, wins the account — and often keeps it for years.

FBN Resources puts you in that window every week. While competitors buy stale, resold lists, you are calling businesses that filed with San Mateo County days ago — from the official source.

Start Getting San Mateo Filings
What’s in every filing

The Signal You Need to Make the Call

Each San Mateo County FBN filing in your weekly digest comes straight from the official county record.

Business Name

The new fictitious business name that was filed

Filing Date

When the business officially registered with the county

County

Tagged to San Mateo County so your list stays focused

Weekly Digest

New filings delivered on a regular weekly schedule

CSV Export

One click into Salesforce, HubSpot, or your dialer

Search & Filter

Find and sort filings by business name and date

De-duplicated

Clean records, no repeats to sift through

Official Source

Pulled directly from the county’s own filings

Business NameCityFiled
Peninsula Property GroupRedwood CityNew
Bayside Biotech LabsSouth San FranciscoNew
Daly City Auto CareDaly CityNew
Menlo Marketing PartnersMenlo ParkNew
Foster City Family DentalFoster CityNew

Sample rows shown for illustration — subscribe to receive your actual San Mateo County filings, updated every week. San Mateo County’s public online index provides the business name and filing date; owner names and street addresses are not included.

Who uses San Mateo County FBN data

Built for the Reps Who Sell to New Businesses

San Mateo County is the Peninsula's engine — biotech in South San Francisco, venture-backed startups in Menlo Park, and thousands of small firms across its 20 cities.

Biotech & Life Sciences

South San Francisco is a global biotech hub — new entities form constantly.

Technology & Startups

Menlo Park and Redwood City founders file DBAs as they launch.

Professional Services

Consultants, agencies, and advisors register new trade names year-round.

Insurance & Payroll

New Peninsula businesses need coverage and payroll fast.

Business Banking & Lending

A new DBA needs a business account and often working capital.

Commercial Real Estate

Office and lab space is in demand within the first 90 days.

From county source to your inbox

How San Mateo County Filings Reach You

1

We pull San Mateo filings

Our system searches the county’s official FBN records for the newest filings each week — cleaned, normalized, and de-duplicated automatically.

2

Your digest is built

The newest San Mateo County filings are formatted into a clean weekly digest — business name and filing date, ready to work.

3

You reach out first

Search and filter in your dashboard, export a CSV, and start calling while the new owner is still choosing their providers.

Cities we cover

Every Corner of San Mateo County

Redwood CitySan MateoDaly CitySouth San FranciscoSan BrunoMenlo ParkFoster City
Questions

San Mateo County FBN Leads, Explained

What is a fictitious business name (FBN) filing?

A fictitious business name (also called a DBA, “doing business as”) is the legally required public filing a business makes with San Mateo County when it operates under a name other than the owner’s legal name. It’s the earliest official signal that a new business has opened.

How often is the data updated?

We pull new San Mateo County filings on a regular weekly schedule and add them to your dashboard, so your list stays current without any work on your end.

What information comes with each filing?

Each record includes the new business name and the date it was filed, tagged to San Mateo County. San Mateo County’s public online index does not include owner names or street addresses.

Can I export the leads?

Yes. Every filing can be exported to CSV in one click and dropped straight into Salesforce, HubSpot, or your dialer.

Why does reaching them first matter?

A new business chooses its bank, insurance, payroll, accountant, and other providers within its first weeks. The rep who reaches them first — while those decisions are still open — wins the account, often for years.

Start today

Own the New Businesses in San Mateo County

Get a steady weekly stream of brand-new San Mateo County business filings delivered to your inbox.

Official county recordsUpdated weeklyCancel anytime