Marketing Agency Leads: Find Local Clients on Maps
By Doug Nielsen, Product Manager · Updated · first published
Marketing agency leads worth calling are local businesses with a gap you can see and fix: few reviews, a low rating or no website. In our samples of 70,643 top-ranked Google Maps listings, 41% of accountants had fewer than 20 reviews, 9% of gyms were rated under 4.0 and 30% of nail salons had no site of their own.
Key takeaways
- Accountants and landscapers are the most under-reviewed industries we sampled; nail salons most often lack a site.
- Sub-4.0 ratings are rarer than agencies assume among top-ranked listings; gyms have the most.
- Scrape ZIP code by ZIP code: one search shows prominent businesses first.
- Check their local-pack rank and three nearest competitors, then email about one finding.
On this page8
Three gaps worth filtering on
Reviews, rating and website are columns in every scraped list. Google's help page on local ranking backs the first: “More reviews and positive ratings can help your business’s local ranking.”
- Few reviews: a business on eight, where leaders have four hundred, is easy to miss in the map pack.
- A rating below the category norm: a reputation problem.
- No website (a full project), or one the listing doesn't link (a five-minute fix that opens the conversation).
| Industry | Listings | Under 20 reviews | Rated under 4.0 | No site of its own |
|---|---|---|---|---|
| Accountants | 3,401 | 41% | 4% | 8% |
| Landscapers | 3,612 | 28% | 3% | 8% |
| Roofing contractors | 3,649 | 22% | 2% | 6% |
| Electricians | 3,619 | 22% | 2% | 11% |
| HVAC contractors | 3,639 | 18% | 2% | 7% |
| Physical therapists | 3,384 | 14% | 1% | 2% |
| Chiropractors | 3,535 | 14% | 1% | 5% |
| Plumbers | 3,644 | 12% | 3% | 7% |
| Law firms | 3,650 | 12% | 3% | 2% |
| Moving companies | 3,372 | 12% | 2% | 5% |
| Real estate agents | 3,654 | 11% | 3% | 4% |
| Med spas | 2,804 | 10% | 1% | 5% |
| Auto repair shops | 3,654 | 8% | 2% | 23% |
| Coffee shops | 3,666 | 8% | 1% | 21% |
| Restaurants | 3,667 | 7% | 1% | 4% |
| Gyms | 3,563 | 7% | 9% | 3% |
| Dentists | 3,665 | 6% | 3% | 3% |
| Nail salons | 3,422 | 5% | 4% | 30% |
| Hair salons | 3,634 | 4% | <1% | 19% |
| Veterinarians | 3,409 | 3% | 5% | 3% |
Notes and sources
Listings is every business sampled in the industry. Under 20 reviews is a share of those showing a review count, rated under 4.0 of those rated, and no site of its own (no link, or only a Facebook, Instagram or booking page) of all listings. Industries with under 30 listings behind a share are left out.
Note
How we sampled
Under-reviewed segments
Accountants lead by a distance, then landscapers at 28% (935 of 3,334); veterinarians (3%) and hair salons (4%) have the smallest share.
By country, 20% of the businesses in Germany, 19% in Australia, 14% in the UK, 12% in the US and 7% in Canada had fewer than 20 reviews. The deepest pockets are where trade and country overlap: 71% of accountants in Germany (216 of 306), 50% of roofing contractors in Germany (174 of 348) and 48% of landscapers in Germany (179 of 375).
- of listings with a review count had fewer than 20 reviews (8,596 of 65,386)
- 13%
- of accountants (1,266 of 3,096)
- 41%
Tip
What to pitch
Sub-4-star pockets
Gyms lead, then veterinarians at 5% (177 of 3,403). The deepest pockets we could measure are nail salons in Australia at 16% (41 of 264), gyms in Canada at 12% (39 of 330) and plumbers in Germany at 10% (43 of 410). Ratings feed local ranking, so sub-4.0 businesses likely sit further down than our samples reach.
- of 70,065 rated listings were under 4.0
- 3%
- of gyms (310 of 3,538), the most of any industry
- 9%
Tip
What to pitch
No-website pockets
The deepest pockets are among nail salons (30% of 3,422) and auto repair shops (23% of 3,654). Our email check reads the page a listing links, so it found none for the 4,553 businesses with no link in the samples it covered.
Web design leads ranks all 20 industries by this gap and country, with review counts that suggest who can pay.
- of businesses had no site of their own (6,292 of 70,643)
- 9%
- of those list a phone number
- 87%
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How to build the list
Pick one trade and one metro
Choose a trade where your gap is common. Specialize: you learn a trade's search terms, seasonality and objections once, and referrals travel within it. The guides on HVAC, dental, roofing and hospitality show how differently these markets behave.Scrape it ZIP code by ZIP code
One Google Maps search stops at roughly 100–120 places, prominent businesses first. In Hubertino's Google Maps scraper, ticking a city in the location picker searches each of its ZIP or postal codes; neighboring searches overlap, so dedupe on place ID.Tag each row with its gap
Flag reviews under 20 (or under a fifth of the category's median), a rating under 4.0, and a website that's blank or a social or booking URL. On Starter and Pro, the Website Analysis add-on labels the websites for you and scores each real one 0–10 with its top three fixes.Keep the place ID in your CRM
Re-scrape next quarter: the businesses that didn't improve are your follow-up list, with a stronger argument.
Audit before you pitch
Search their category from their area
Do they show in the local pack for their main money term? That's the pitch; if they rank first, they're not a prospect.Compare three nearest competitors
Line up rating, review count and site quality from the same ZIP-code list; named competitors beat general claims.Check the profile basics
Categories, hours, service areas, photos, review replies: much local SEO work is profile hygiene, visible from outside.Write the email around one finding
One observation, one implication, one small offer. Rating and review count are merge fields, so this personalizes at volume; the cold-email guide covers the sending side.
Watch out
They already know their rating
Common questions
Which local businesses need a marketing agency most?
How big should an agency's prospect list be?
Can I see ranking positions in the export?
Sources
Google Business Profile Help: Tips to improve your local ranking on Google (checked September 2026)
Written by
Doug Nielsen, Product Manager
Doug works on Hubertino; the guides on this site are published under his name. Last updated .