Business Opportunities in Portland-South Portland, ME

Data-driven insights using Gap Ratio analysis to identify underserved markets

Population

0.6M

High Demand

Moderate Demand

High Confidence

📊 How Gap Ratio Works

Gap Ratio = National Density / Local Density. Higher ratios indicate underserved markets. A ratio of 2.0x means this area has 50% fewer businesses per capita than the national average.

≥1.5x High Demand

1.1-1.5x Moderate

0.9-1.1x Balanced

<0.9x Saturated

Top Opportunities (Sorted by Gap Ratio)

Medical Laboratories Business

Medical Laboratories

6.3xGap Ratio

84% fewer businesses than national average

High Demand

Medical Laboratories ServiceProfessional Medical

Local Density

0.05/10k

National Avg

0.34/10k

Local Businesses

NAICS Code

621511

Cargo Transport

General Freight Trucking, Long-Distance, Truckload

High Confidence

4.0xGap Ratio

75% fewer businesses than national average

High Demand

Delivery ServiceFreight Hauling

Local Density

0.36/10k

National Avg

1.45/10k

Local Businesses

NAICS Code

484121

Cargo Transport

General Freight Trucking, Local

High Confidence

3.5xGap Ratio

71% fewer businesses than national average

High Demand

Delivery ServiceFreight Hauling

Local Density

0.31/10k

National Avg

1.05/10k

Local Businesses

NAICS Code

48411

Cargo Transport

General Freight Trucking, Local

High Confidence

3.5xGap Ratio

71% fewer businesses than national average

High Demand

Delivery ServiceFreight Hauling

Local Density

0.31/10k

National Avg

1.05/10k

Local Businesses

NAICS Code

484110

All Other Professional, Scientific, and Technical Services Business

All Other Professional, Scientific, and Technical Services

High Confidence

3.3xGap Ratio

70% fewer businesses than national average

High Demand

All Other Professional, Scientific, and Technical Services ServiceProfessional All

Local Density

0.16/10k

National Avg

0.53/10k

Local Businesses

NAICS Code

54199

Appraisal (except real estate) services Marine surveyor (i

All Other Professional, Scientific, and Technical Services

High Confidence

3.3xGap Ratio

70% fewer businesses than national average

High Demand

Local Density

0.16/10k

National Avg

0.53/10k

Local Businesses

NAICS Code

541990

Commercial Photographer

Photography Studios, Portrait

High Confidence

3.0xGap Ratio

67% fewer businesses than national average

High Demand

Event PhotographyPortrait Photographer

Local Density

0.05/10k

National Avg

0.16/10k

Local Businesses

NAICS Code

541921

Cargo Transport

General Freight Trucking, Long-Distance

High Confidence

2.9xGap Ratio

65% fewer businesses than national average

High Demand

Delivery ServiceFreight Hauling

Local Density

0.61/10k

National Avg

1.77/10k

Local Businesses

NAICS Code

48412

Cargo Transport

General Freight Trucking

High Confidence

2.6xGap Ratio

61% fewer businesses than national average

High Demand

Delivery ServiceFreight Hauling

Local Density

1.22/10k

National Avg

3.14/10k

Local Businesses

NAICS Code

4841

Performing Arts Companies Business

Performing Arts Companies

2.4xGap Ratio

59% fewer businesses than national average

High Demand

Performing Arts Companies ServiceProfessional Performing

Local Density

0.07/10k

National Avg

0.17/10k

Local Businesses

NAICS Code

7111

Medical and Diagnostic Laboratories Business

Medical and Diagnostic Laboratories

2.3xGap Ratio

57% fewer businesses than national average

High Demand

Medical and Diagnostic Laboratories ServiceProfessional Medical

Local Density

0.23/10k

National Avg

0.54/10k

Local Businesses

NAICS Code

6215

Medical and Diagnostic Laboratories Business

Medical and Diagnostic Laboratories

2.3xGap Ratio

57% fewer businesses than national average

High Demand

Medical and Diagnostic Laboratories ServiceProfessional Medical

Local Density

0.23/10k

National Avg

0.54/10k

Local Businesses

NAICS Code

62151

Creative Professional

Independent Artists, Writers, and Performers

High Confidence

2.1xGap Ratio

52% fewer businesses than national average

High Demand

Freelance ArtistIndependent Writer

Local Density

0.47/10k

National Avg

0.97/10k

Local Businesses

NAICS Code

7115

Creative Professional

Independent Artists, Writers, and Performers

High Confidence

2.1xGap Ratio

52% fewer businesses than national average

High Demand

Freelance ArtistIndependent Writer

Local Density

0.47/10k

National Avg

0.97/10k

Local Businesses

NAICS Code

71151

commercial

Independent Artists, Writers, and Performers

High Confidence

2.1xGap Ratio

52% fewer businesses than national average

High Demand

Local Density

0.47/10k

National Avg

0.97/10k

Local Businesses

NAICS Code

711510

Office Administrative Services Business

Office Administrative Services

2.0xGap Ratio

50% fewer businesses than national average

High Demand

Office Administrative Services ServiceProfessional Office

Local Density

0.43/10k

National Avg

0.87/10k

Local Businesses

NAICS Code

5611

Office Administrative Services Business

Office Administrative Services

2.0xGap Ratio

50% fewer businesses than national average

High Demand

Office Administrative Services ServiceProfessional Office

Local Density

0.43/10k

National Avg

0.87/10k

Local Businesses

NAICS Code

56111

financial planning

Office Administrative Services

2.0xGap Ratio

50% fewer businesses than national average

High Demand

Local Density

0.43/10k

National Avg

0.87/10k

Local Businesses

NAICS Code

561110

Professional Used

Used Car Dealers

2.0xGap Ratio

50% fewer businesses than national average

High Demand

Used Car Dealers BusinessUsed Car Dealers Service

Local Density

0.27/10k

National Avg

0.54/10k

Local Businesses

NAICS Code

44112

Antique auto dealers Light truck dealers

Used Car Dealers

2.0xGap Ratio

50% fewer businesses than national average

High Demand

passenger and cargo vanssport utility vehicles

Local Density

0.27/10k

National Avg

0.54/10k

Local Businesses

NAICS Code

441120

commercial furniture and equipment

Specialized Freight Trucking

1.7xGap Ratio

43% fewer businesses than national average

High Demand

flatbedsinstitutional

Local Density

0.68/10k

National Avg

1.19/10k

Local Businesses

NAICS Code

4842

Automotive detail shops Mobile car and truck washes Car washes Self-service car washes

Car Washes

1.7xGap Ratio

40% fewer businesses than national average

High Demand

passenger carstrailers

Local Density

0.22/10k

National Avg

0.36/10k

Local Businesses

NAICS Code

811192

Exterminating and Pest Control Services Business

Exterminating and Pest Control Services

1.7xGap Ratio

40% fewer businesses than national average

High Demand

Exterminating and Pest Control Services ServiceProfessional Exterminating

Local Density

0.16/10k

National Avg

0.27/10k

Local Businesses

NAICS Code

56171

Exterminating and Pest Control Services Business

Exterminating and Pest Control Services

1.7xGap Ratio

40% fewer businesses than national average

High Demand

Exterminating and Pest Control Services ServiceProfessional Exterminating

Local Density

0.16/10k

National Avg

0.27/10k

Local Businesses

NAICS Code

561710

hospitals or HMO medical centers

Offices of Physicians, Mental Health Specialists

High Confidence

1.6xGap Ratio

39% fewer businesses than national average

High Demand

Local Density

0.16/10k

National Avg

0.27/10k

Local Businesses

NAICS Code

621112

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services Business

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services

1.6xGap Ratio

36% fewer businesses than national average

High Demand

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services ServiceProfessional Computing

Local Density

0.22/10k

National Avg

0.34/10k

Local Businesses

NAICS Code

5182

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services Business

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services

1.6xGap Ratio

36% fewer businesses than national average

High Demand

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services ServiceProfessional Computing

Local Density

0.22/10k

National Avg

0.34/10k

Local Businesses

NAICS Code

51821

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services Business

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services

1.6xGap Ratio

36% fewer businesses than national average

High Demand

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services ServiceProfessional Computing

Local Density

0.22/10k

National Avg

0.34/10k

Local Businesses

NAICS Code

518210

Escrow Services

Other Activities Related to Real Estate

High Confidence

1.5xGap Ratio

32% fewer businesses than national average

Moderate Demand

Property ManagementReal Estate Appraisal

Local Density

0.34/10k

National Avg

0.50/10k

Local Businesses

NAICS Code

53139

Escrow Services

Other Activities Related to Real Estate

High Confidence

1.5xGap Ratio

32% fewer businesses than national average

Moderate Demand

Property ManagementReal Estate Appraisal

Local Density

0.34/10k

National Avg

0.50/10k

Local Businesses

NAICS Code

531390

Other Business Support Services Business

Other Business Support Services

High Confidence

1.5xGap Ratio

32% fewer businesses than national average

Moderate Demand

Other Business Support Services ServiceProfessional Other

Local Density

0.05/10k

National Avg

0.08/10k

Local Businesses

NAICS Code

56149

Automotive body shops Automotive paint shops Automotive glass shops Restoration shops

Automotive Body, Paint, Interior, and Glass Repair

1.5xGap Ratio

32% fewer businesses than national average

Moderate Demand

antique and classic automotive Cross-References

Local Density

0.66/10k

National Avg

0.98/10k

Local Businesses

NAICS Code

81112

Concierge Service

All Other Personal Services

High Confidence

1.5xGap Ratio

32% fewer businesses than national average

Moderate Demand

Errand ServicePersonal Shopper

Local Density

0.36/10k

National Avg

0.53/10k

Local Businesses

NAICS Code

81299

Concierge Service

All Other Personal Services

High Confidence

1.5xGap Ratio

32% fewer businesses than national average

Moderate Demand

Errand ServicePersonal Shopper

Local Density

0.36/10k

National Avg

0.53/10k

Local Businesses

NAICS Code

812990

Professional Tax

Tax Preparation Services

1.5xGap Ratio

32% fewer businesses than national average

Moderate Demand

Tax Preparation Services BusinessTax Preparation Services Service

Local Density

0.43/10k

National Avg

0.63/10k

Local Businesses

NAICS Code

541213

Cargo Transport

General Freight Trucking, Long-Distance, Less Than Truckload

1.4xGap Ratio

28% fewer businesses than national average

Moderate Demand

Delivery ServiceFreight Hauling

Local Density

0.13/10k

National Avg

0.17/10k

Local Businesses

NAICS Code

484122

Insurance Agent

Insurance Agencies and Brokerages

1.3xGap Ratio

25% fewer businesses than national average

Moderate Demand

Insurance BrokerInsurance Sales

Local Density

2.82/10k

National Avg

3.78/10k

Local Businesses

157

NAICS Code

52421

Insurance Agent

Insurance Agencies and Brokerages

1.3xGap Ratio

25% fewer businesses than national average

Moderate Demand

Insurance BrokerInsurance Sales

Local Density

2.82/10k

National Avg

3.78/10k

Local Businesses

157

NAICS Code

524210

Claims adjusting

Other Insurance Related Activities

1.3xGap Ratio

25% fewer businesses than national average

Moderate Demand

insurance Insurance plan administrative servicesthird party Insurance actuarial services Insurance claims adjusting Cross-References

Local Density

0.18/10k

National Avg

0.24/10k

Local Businesses

NAICS Code

52429

Costume rental Formal wear rental Furniture (i

Other Consumer Goods Rental

1.3xGap Ratio

25% fewer businesses than national average

Moderate Demand

Local Density

0.11/10k

National Avg

0.14/10k

Local Businesses

NAICS Code

53228

claims adjustment and third party administration

Agencies, Brokerages, and Other Insurance Related Activities

High Confidence

1.3xGap Ratio

22% fewer businesses than national average

Moderate Demand

Local Density

3.25/10k

National Avg

4.19/10k

Local Businesses

181

NAICS Code

5242

passenger car

Automotive Glass Replacement Shops

1.3xGap Ratio

22% fewer businesses than national average

Moderate Demand

truckvan glass

Local Density

0.05/10k

National Avg

0.07/10k

Local Businesses

NAICS Code

811122

manicures

Nail Salons

1.2xGap Ratio

19% fewer businesses than national average

Moderate Demand

nail extensionspedicures

Local Density

0.72/10k

National Avg

0.88/10k

Local Businesses

NAICS Code

812113

Consumer Goods Rental Business

Consumer Goods Rental

1.2xGap Ratio

18% fewer businesses than national average

Moderate Demand

Consumer Goods Rental ServiceProfessional Consumer

Local Density

0.22/10k

National Avg

0.26/10k

Local Businesses

NAICS Code

5322

Computer Systems Design and Related Services Business

Computer Systems Design and Related Services

High Confidence

1.2xGap Ratio

15% fewer businesses than national average

Moderate Demand

Computer Systems Design and Related Services ServiceProfessional Computer

Local Density

3.41/10k

National Avg

4.02/10k

Local Businesses

190

NAICS Code

5415

Computer Systems Design and Related Services Business

Computer Systems Design and Related Services

High Confidence

1.2xGap Ratio

15% fewer businesses than national average

Moderate Demand

Computer Systems Design and Related Services ServiceProfessional Computer

Local Density

3.41/10k

National Avg

4.02/10k

Local Businesses

190

NAICS Code

54151

Custom Computer Programming Services Business

Custom Computer Programming Services

High Confidence

1.2xGap Ratio

15% fewer businesses than national average

Moderate Demand

Custom Computer Programming Services ServiceProfessional Custom

Local Density

1.53/10k

National Avg

1.80/10k

Local Businesses

NAICS Code

541511

Computer Systems Design Services Business

Computer Systems Design Services

High Confidence

1.1xGap Ratio

12% fewer businesses than national average

Moderate Demand

Computer Systems Design Services ServiceProfessional Computer

Local Density

1.31/10k

National Avg

1.48/10k

Local Businesses

NAICS Code

541512

Fix-It Service

Personal and Household Goods Repair and Maintenance

High Confidence

1.1xGap Ratio

11% fewer businesses than national average

Moderate Demand

Maintenance ShopRepair Service

Local Density

0.38/10k

National Avg

0.42/10k

Local Businesses

NAICS Code

8114

Offices of Real Estate Appraisers Business

Offices of Real Estate Appraisers

1.1xGap Ratio

10% fewer businesses than national average

Moderate Demand

Offices of Real Estate Appraisers ServiceProfessional Offices

Local Density

0.16/10k

National Avg

0.18/10k

Local Businesses

NAICS Code

53132

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