Selling a Business in San Mateo County

San Mateo County has 21,569 employer businesses, and 85% of them have fewer than 20 employees. This page shows the local mix of industries and how a sale is handled here. The largest industries here are professional and technical services and health care and social assistance.

LOCAL SNAPSHOT

San Mateo County by the numbers

21,569

21,569

EMPLOYER BUSINESSES

85%

85%

SMALL EMPLOYER SHARE

73,332

73,332

BUSINESSES WITH NO EMPLOYEES

477,938

477,938

EMPLOYMENT

$87.7 billion

$87.7 billion

ANNUAL PAYROLL

8,443

8,443

BUSINESSES WITH 5 TO 49 EMPLOYEES

U.S. Census Bureau, County Business Patterns 2023 and Nonemployer Statistics 2024. Counts are employer establishments, meaning business locations with paid employees.

How San Mateo County compares

  • San Mateo County ranks 12th of 58 California counties and county equivalents for employer businesses.

  • The number of employer businesses grew 0.4% between 2018 and 2023.

  • Finance and insurance makes up 6% of employer businesses in San Mateo County, compared with 5% in California.

  • 8,443 employer businesses here have 5 to 49 employees.

  • San Mateo County ranks 12th of 58 California counties and county equivalents for employer businesses.

  • The number of employer businesses grew 0.4% between 2018 and 2023.

  • Finance and insurance makes up 6% of employer businesses in San Mateo County, compared with 5% in California.

  • 8,443 employer businesses here have 5 to 49 employees.

Industry mix

The largest industries by number of employer businesses:

  • Professional and technical services: 3,464 employer businesses

  • Health care and social assistance: 2,694 employer businesses

  • Accommodation and food service: 2,180 employer businesses

  • Construction: 1,985 employer businesses

  • Retail: 1,827 employer businesses

The largest industries by number of employer businesses:

  • Professional and technical services: 3,464 employer businesses

  • Health care and social assistance: 2,694 employer businesses

  • Accommodation and food service: 2,180 employer businesses

  • Construction: 1,985 employer businesses

  • Retail: 1,827 employer businesses

Every kind of business we sell in San Mateo County

These are the industries in San Mateo County and the number of employer businesses in each. Counts are employer businesses in the closest Census industry codes. Industries without a clean Census match are listed without a count, and a few industries share one Census category, so their counts match. A sale multiple is the price a business typically sells for as a multiple of its earnings. SDE means seller's discretionary earnings, which is the owner's pay plus the profit of the business. EBITDA means earnings before interest, taxes, depreciation and amortization.

Construction & Engineering

2,280 related employer businesses in San Mateo County.

  • General Contracting: 853 employer businesses here. Typical sale multiple: 3.0x - 4.5x SDE.

  • Interior Finishing: 372 employer businesses here. Typical sale multiple: 2.5x - 4.0x SDE.

  • Landscaping: 286 employer businesses here. Typical sale multiple: 3.0x - 5.0x SDE.

  • Plumbing: 233 employer businesses here. Typical sale multiple: 3.5x - 5.0x SDE.

  • HVAC Services: 233 employer businesses here. Typical sale multiple: 4.6x - 7.0x EBITDA.

  • Electrical: 206 employer businesses here. Typical sale multiple: 4.0x - 8.0x EBITDA.

  • Civil Engineering: 142 employer businesses here. Typical sale multiple: 7.0x - 11.0x EBITDA.

  • Roofing & Siding: 81 employer businesses here. Typical sale multiple: 3.0x - 5.0x SDE.

  • Foundation & Site Prep: 70 employer businesses here. Typical sale multiple: 2.5x - 4.0x EBITDA + Fleet.

  • Masonry: 17 employer businesses here. Typical sale multiple: 2.5x - 4.0x EBITDA + Equipment.

  • Carpentry & Framing: 12 employer businesses here. Typical sale multiple: 2.5x - 4.0x SDE.

  • Remediation & Restoration: 8 employer businesses here. Typical sale multiple: 4.0x - 7.0x EBITDA.

Restaurants & Food

1,990 related employer businesses in San Mateo County.

Medical Practices

1,492 related employer businesses in San Mateo County.

Financial & Professional Services

1,445 related employer businesses in San Mateo County.

Retail Stores

789 related employer businesses in San Mateo County.

Automotive & Boat

604 related employer businesses in San Mateo County.

  • Auto Repair: 277 employer businesses here. Typical sale multiple: 2.5x - 3.2x SDE.

  • Collision Repair: 137 employer businesses here. Typical sale multiple: 3.5x - 5.0x EBITDA.

  • Car Dealerships: 65 employer businesses here. Typical sale multiple: 2x - 8x Blue Sky + Assets.

  • Auto Parts: 61 employer businesses here. Typical sale multiple: 2.5x - 3.2x SDE + Inventory.

  • Car Washes: 36 employer businesses here. Typical sale multiple: 4.5x - 7.0x EBITDA.

  • Towing & Repo: 20 employer businesses here. Typical sale multiple: 3.0x - 4.0x EBITDA + Fleet.

  • Marinas: 5 employer businesses here. Typical sale multiple: Cap Rate or 4.0x - 7.0x EBITDA.

  • Boat Dealerships: 3 employer businesses here. Typical sale multiple: 3.0x - 4.5x EBITDA.

Technology & Media

595 related employer businesses in San Mateo County.

Home Services

570 related employer businesses in San Mateo County.

  • Property Management: 309 employer businesses here. Typical sale multiple: 3.0x - 4.5x SDE.

  • Residential Cleaning: 215 employer businesses here. Typical sale multiple: 1.5x - 2.6x SDE.

  • Commercial Cleaning: 215 employer businesses here. Typical sale multiple: 2.47x - 4.11x EBITDA.

  • Pest Control: 30 employer businesses here. Typical sale multiple: 2.34x - 2.90x SDE.

  • Security Systems: 16 employer businesses here. Typical sale multiple: 3.0x - 4.9x EBITDA.

Wholesale & Distribution

490 related employer businesses in San Mateo County.

Logistics & Transportation

462 related employer businesses in San Mateo County.

Education & Childcare

446 related employer businesses in San Mateo County.

  • Daycare Centers: 357 employer businesses here. Typical sale multiple: 2.39x - 3.35x SDE.

  • Tutoring Centers: 89 employer businesses here. Typical sale multiple: 2.0x - 3.5x SDE.

Manufacturing

432 related employer businesses in San Mateo County.

Beauty & Personal Care

422 related employer businesses in San Mateo County.

  • Hair Salons: 202 employer businesses here. Typical sale multiple: 1.25x - 2.34x SDE.

  • Nail Salons: 125 employer businesses here. Typical sale multiple: 1.4x - 1.88x SDE.

  • Day Spas: 92 employer businesses here. Typical sale multiple: 1.8x - 2.8x SDE.

  • Tattoo Shops: 92 employer businesses here. Typical sale multiple: 1.5x - 2.5x SDE.

  • Massage Parlors: 92 employer businesses here. Typical sale multiple: 1.5x - 2.5x SDE.

  • Barber Shops: 3 employer businesses here. Typical sale multiple: 1.5x - 2.25x SDE.

Hospitality & Travel

296 related employer businesses in San Mateo County.

  • Hotels: 137 employer businesses here. Typical sale multiple: 2.6x - 5.1x EBITDA.

  • Motels: 137 employer businesses here. Typical sale multiple: 1.1x - 2.5x SDE.

  • Transportation Services: 111 employer businesses here. Typical sale multiple: 2.0x - 4.1x SDE.

  • Travel Agencies: 40 employer businesses here. Typical sale multiple: 2.3x - 3.2x SDE.

  • Campgrounds & RV Parks: 5 employer businesses here. Typical sale multiple: 4.0x - 7.0x EBITDA.

  • Bed & Breakfasts / Inns: 3 employer businesses here. Typical sale multiple: 2.0x - 4.0x SDE.

Senior Care & Living

247 related employer businesses in San Mateo County.

Gas Stations & Convenience

182 related employer businesses in San Mateo County.

  • Gas Stations: 140 employer businesses here. Typical sale multiple: 3.0x - 4.5x EBITDA + Real Estate.

  • Convenience Stores: 42 employer businesses here. Typical sale multiple: 2.5x - 3.5x SDE + Inventory.

Pharmacies & Medical Supply

176 related employer businesses in San Mateo County.

Health & Fitness

167 related employer businesses in San Mateo County.

Entertainment & Recreation

144 related employer businesses in San Mateo County.

  • Outdoor Recreation: 71 employer businesses here. Typical sale multiple: 2.0x - 4.0x SDE.

  • Bars & Pubs: 52 employer businesses here. Typical sale multiple: 2.0x - 4.0x SDE.

  • Clubs & Lounges: 52 employer businesses here. Typical sale multiple: 3.0x - 6.0x EBITDA.

  • Golf Courses: 9 employer businesses here. Typical sale multiple: 8.0x - 11.0x EBITDA.

  • Arcades & FECs: 9 employer businesses here. Typical sale multiple: 2.1x - 3.6x SDE.

  • Bowling Alleys: 3 employer businesses here. Typical sale multiple: 3.0x - 5.0x EBITDA.

Pet Services

86 related employer businesses in San Mateo County.

Energy & Utilities

54 related employer businesses in San Mateo County.

These are the industries in San Mateo County and the number of employer businesses in each. Counts are employer businesses in the closest Census industry codes. Industries without a clean Census match are listed without a count, and a few industries share one Census category, so their counts match. A sale multiple is the price a business typically sells for as a multiple of its earnings. SDE means seller's discretionary earnings, which is the owner's pay plus the profit of the business. EBITDA means earnings before interest, taxes, depreciation and amortization.

Construction & Engineering

2,280 related employer businesses in San Mateo County.

  • General Contracting: 853 employer businesses here. Typical sale multiple: 3.0x - 4.5x SDE.

  • Interior Finishing: 372 employer businesses here. Typical sale multiple: 2.5x - 4.0x SDE.

  • Landscaping: 286 employer businesses here. Typical sale multiple: 3.0x - 5.0x SDE.

  • Plumbing: 233 employer businesses here. Typical sale multiple: 3.5x - 5.0x SDE.

  • HVAC Services: 233 employer businesses here. Typical sale multiple: 4.6x - 7.0x EBITDA.

  • Electrical: 206 employer businesses here. Typical sale multiple: 4.0x - 8.0x EBITDA.

  • Civil Engineering: 142 employer businesses here. Typical sale multiple: 7.0x - 11.0x EBITDA.

  • Roofing & Siding: 81 employer businesses here. Typical sale multiple: 3.0x - 5.0x SDE.

  • Foundation & Site Prep: 70 employer businesses here. Typical sale multiple: 2.5x - 4.0x EBITDA + Fleet.

  • Masonry: 17 employer businesses here. Typical sale multiple: 2.5x - 4.0x EBITDA + Equipment.

  • Carpentry & Framing: 12 employer businesses here. Typical sale multiple: 2.5x - 4.0x SDE.

  • Remediation & Restoration: 8 employer businesses here. Typical sale multiple: 4.0x - 7.0x EBITDA.

Restaurants & Food

1,990 related employer businesses in San Mateo County.

Medical Practices

1,492 related employer businesses in San Mateo County.

Financial & Professional Services

1,445 related employer businesses in San Mateo County.

Retail Stores

789 related employer businesses in San Mateo County.

Automotive & Boat

604 related employer businesses in San Mateo County.

  • Auto Repair: 277 employer businesses here. Typical sale multiple: 2.5x - 3.2x SDE.

  • Collision Repair: 137 employer businesses here. Typical sale multiple: 3.5x - 5.0x EBITDA.

  • Car Dealerships: 65 employer businesses here. Typical sale multiple: 2x - 8x Blue Sky + Assets.

  • Auto Parts: 61 employer businesses here. Typical sale multiple: 2.5x - 3.2x SDE + Inventory.

  • Car Washes: 36 employer businesses here. Typical sale multiple: 4.5x - 7.0x EBITDA.

  • Towing & Repo: 20 employer businesses here. Typical sale multiple: 3.0x - 4.0x EBITDA + Fleet.

  • Marinas: 5 employer businesses here. Typical sale multiple: Cap Rate or 4.0x - 7.0x EBITDA.

  • Boat Dealerships: 3 employer businesses here. Typical sale multiple: 3.0x - 4.5x EBITDA.

Technology & Media

595 related employer businesses in San Mateo County.

Home Services

570 related employer businesses in San Mateo County.

  • Property Management: 309 employer businesses here. Typical sale multiple: 3.0x - 4.5x SDE.

  • Residential Cleaning: 215 employer businesses here. Typical sale multiple: 1.5x - 2.6x SDE.

  • Commercial Cleaning: 215 employer businesses here. Typical sale multiple: 2.47x - 4.11x EBITDA.

  • Pest Control: 30 employer businesses here. Typical sale multiple: 2.34x - 2.90x SDE.

  • Security Systems: 16 employer businesses here. Typical sale multiple: 3.0x - 4.9x EBITDA.

Wholesale & Distribution

490 related employer businesses in San Mateo County.

Logistics & Transportation

462 related employer businesses in San Mateo County.

Education & Childcare

446 related employer businesses in San Mateo County.

  • Daycare Centers: 357 employer businesses here. Typical sale multiple: 2.39x - 3.35x SDE.

  • Tutoring Centers: 89 employer businesses here. Typical sale multiple: 2.0x - 3.5x SDE.

Manufacturing

432 related employer businesses in San Mateo County.

Beauty & Personal Care

422 related employer businesses in San Mateo County.

  • Hair Salons: 202 employer businesses here. Typical sale multiple: 1.25x - 2.34x SDE.

  • Nail Salons: 125 employer businesses here. Typical sale multiple: 1.4x - 1.88x SDE.

  • Day Spas: 92 employer businesses here. Typical sale multiple: 1.8x - 2.8x SDE.

  • Tattoo Shops: 92 employer businesses here. Typical sale multiple: 1.5x - 2.5x SDE.

  • Massage Parlors: 92 employer businesses here. Typical sale multiple: 1.5x - 2.5x SDE.

  • Barber Shops: 3 employer businesses here. Typical sale multiple: 1.5x - 2.25x SDE.

Hospitality & Travel

296 related employer businesses in San Mateo County.

  • Hotels: 137 employer businesses here. Typical sale multiple: 2.6x - 5.1x EBITDA.

  • Motels: 137 employer businesses here. Typical sale multiple: 1.1x - 2.5x SDE.

  • Transportation Services: 111 employer businesses here. Typical sale multiple: 2.0x - 4.1x SDE.

  • Travel Agencies: 40 employer businesses here. Typical sale multiple: 2.3x - 3.2x SDE.

  • Campgrounds & RV Parks: 5 employer businesses here. Typical sale multiple: 4.0x - 7.0x EBITDA.

  • Bed & Breakfasts / Inns: 3 employer businesses here. Typical sale multiple: 2.0x - 4.0x SDE.

Senior Care & Living

247 related employer businesses in San Mateo County.

Gas Stations & Convenience

182 related employer businesses in San Mateo County.

  • Gas Stations: 140 employer businesses here. Typical sale multiple: 3.0x - 4.5x EBITDA + Real Estate.

  • Convenience Stores: 42 employer businesses here. Typical sale multiple: 2.5x - 3.5x SDE + Inventory.

Pharmacies & Medical Supply

176 related employer businesses in San Mateo County.

Health & Fitness

167 related employer businesses in San Mateo County.

Entertainment & Recreation

144 related employer businesses in San Mateo County.

  • Outdoor Recreation: 71 employer businesses here. Typical sale multiple: 2.0x - 4.0x SDE.

  • Bars & Pubs: 52 employer businesses here. Typical sale multiple: 2.0x - 4.0x SDE.

  • Clubs & Lounges: 52 employer businesses here. Typical sale multiple: 3.0x - 6.0x EBITDA.

  • Golf Courses: 9 employer businesses here. Typical sale multiple: 8.0x - 11.0x EBITDA.

  • Arcades & FECs: 9 employer businesses here. Typical sale multiple: 2.1x - 3.6x SDE.

  • Bowling Alleys: 3 employer businesses here. Typical sale multiple: 3.0x - 5.0x EBITDA.

Pet Services

86 related employer businesses in San Mateo County.

Energy & Utilities

54 related employer businesses in San Mateo County.

Working with owners in San Mateo County

Business Advisors of America works with owners who are selling a business in San Mateo County. Contact us to talk about a sale.

FREQUENTLY ASKED QUESTIONS

Questions owners in San Mateo County ask

How long does it take to sell a business in San Mateo County?

The time depends on the price, the quality of the records and the number of qualified buyers.

How is a business valued in San Mateo County?

Valuation starts with the earnings the business produces for an owner, then adjusts for assets, size, industry and the terms a buyer is likely to accept. The result is a range, and the asking price is set inside it.

Is the sale confidential?

Buyers are asked to sign a non-disclosure agreement before they see the name of the business or its financial statements.

FROM OUR BLOG

Guides for owners in San Mateo County

October 3, 2025

Business Owners

Add-Backs: What Counts, What Does Not, and What Buyers Push Back On

Every add-back you can prove raises your sale price by two to three times its amount. Every add-back you cannot prove costs you credibility on all the others.

Read article

October 3, 2025

Business Owners

Add-Backs: What Counts, What Does Not, and What Buyers Push Back On

Every add-back you can prove raises your sale price by two to three times its amount. Every add-back you cannot prove costs you credibility on all the others.

Read article

March 5, 2026

Business Owners

Buyer Qualification: How We Screen Out the Buyers Who Cannot Close

Most inquiries on a business listing come from people who cannot close. Here is how they get screened out before they see your name or your financials.

Read article

March 5, 2026

Business Owners

Buyer Qualification: How We Screen Out the Buyers Who Cannot Close

Most inquiries on a business listing come from people who cannot close. Here is how they get screened out before they see your name or your financials.

Read article

February 9, 2026

Business Owners

The Confidential Information Memorandum: What Goes In It and Why

The CIM is the document a buyer reads before they decide to spend time on your business. Here is what it has to contain and the mistakes that cost sellers offers.

Read article

February 9, 2026

Business Owners

The Confidential Information Memorandum: What Goes In It and Why

The CIM is the document a buyer reads before they decide to spend time on your business. Here is what it has to contain and the mistakes that cost sellers offers.

Read article