LeadMarina vs Seamless.AI
Seamless.AI describes itself as a real-time search engine that helps B2B companies find sales leads. It also bundles outreach tools, AI agents and integrations into one platform. If you sell to professionals at companies of any size and want data and outreach in one place, it covers a lot of ground.
LeadMarina does one narrower job. You give it a business niche and a US city, and it returns local businesses with up to 3 SMTP-checked emails, up to 3 phones with line type and carrier, and owner names where found. If your prospects are local businesses such as plumbers, dentists or restaurants, that focus may fit better. If you need wide B2B people search with built-in sending and calling, Seamless.AI is the stronger choice.
Side by side
| Feature | Seamless.AI | LeadMarina |
|---|---|---|
| What it is | A real-time search engine that helps B2B companies find accurate sales leads | A local business lead finder: search by niche and US city, get verified leads back |
| Contact data | 1.6B+ verified business emails and 448M+ phone numbers | Results come from public business listings, then each lead's website is read for contacts. |
| Data depth per profile | 100+ live data points per profile, updated continuously | Up to 3 emails and up to 3 phones per lead, owner names where found, plus named contacts with titles where the site lists them. |
| Credit back | If an email is invalid, Seamless.AI automatically refunds the credit | Each email is SMTP-checked and labelled safe, risky or invalid. When a search returns a lead with no usable phone or email because we couldn't read the business's website, the lead goes back to your balance automatically. |
| Outreach tools | Built-in sending and automation | No built-in outreach. Leads export to CSV, Excel, JSON, Google Sheets, Close and GoHighLevel. |
| Calling | Ai-powered dialer | No dialer. Phones are checked for line type (mobile, landline, VoIP, toll-free) and carrier. |
| AI tool connections | MCPs connect Seamless data to AI tools, models, and agents | A remote MCP server works with Claude, ChatGPT, Cursor and any MCP client, with no install. |
| Integrations | Connect instantly with 6,000+ tools | Direct exports to Google Sheets, Close and GoHighLevel that update existing rows instead of creating duplicates, plus a REST API. |
| Free option | Free for up to 50 credits | A free plan with full API access and no credit card required. |
| Published plan prices | Not stated on seamless.ai | $39 / $119 / $299 for 15k / 65k / 240k verified leads, or $699 Unlimited (up to 210,000 leads per 7-day period) |
Based on Seamless.AI's published pricing and materials, and our own tests where noted, as of October 2026. Spot something outdated? Email us and we'll fix it.
Measured on real leads
What a LeadMarina lead comes with.
97%
of leads come with a phone, almost every one checked for mobile and carrier
About 4 in 10
have a mobile number
About 4 in 10
have an email checked safe to send to
About 1 in 5
come with the owner's name
2.6% had no usable phone or email. When a search returns one of those because we couldn't read the business's website, the lead goes back to your balance automatically.
Measured on a random sample of 52,279 leads delivered in the 30 days to October 29, 2026. How we measured
Finished leads only, with our own test account left out. A pooled figure leans toward the heaviest users, so here is the typical account too: 96% with a phone, 35% with a mobile number, 35% with an email checked safe, and 21% with the owner's name. Checked emails are labeled safe, risky, invalid or unknown, so you can see which ones to send to.
Who should pick which
Choose Seamless.AI if…
- Teams selling to B2B professionals across industries who want one platform for data, emailing, calling and AI agents.
- Buyers who need extras such as buyer intent, job change tracking and CRM enrichment alongside contact data.
- Companies that need compliance credentials, since Seamless.AI lists SOC 2 Type II and ISO 27001.
Choose LeadMarina if…
- Agencies and sales teams prospecting local businesses by niche and US city.
- Anyone who wants emails SMTP-checked and phones labelled by line type and carrier.
- Teams that want leads pushed into Google Sheets, Close or GoHighLevel without duplicates, or pulled through an API or MCP.
Try it before you switch
- 1
Pick a niche and a city you know
One you've already prospected, so you know what a good list there looks like.
- 2
Run it here, free
Search the same niche and city on the Free plan: 100 leads, no credit card.
- 3
Count what you can use
On both lists, count the emails you would send to and the phones you would dial. Ours arrive labeled: emails as safe, risky, invalid or unknown, and phones checked for line type and carrier.
- 4
Keep the tools you send from
Export a CSV, Excel or JSON file, or send the leads straight to Google Sheets, Close or GoHighLevel.
FAQ
Is Seamless.AI free to try?+
Seamless.AI says it is free for up to 50 credits. After that you contact its sales team, since it does not publish plan prices on its homepage.
Which is better for finding local businesses?+
LeadMarina is built for that: you search a niche in a US city and get local businesses back with checked emails and phones. Seamless.AI is aimed at B2B professionals and sales teams.
Does LeadMarina have a free plan?+
Yes. The free plan comes with full API access and no credit card required. For paid plans, see $39 / $119 / $299 for 15k / 65k / 240k verified leads, or $699 Unlimited (up to 210,000 leads per 7-day period).
Can LeadMarina send outreach emails or make calls?+
No. LeadMarina delivers the leads and exports them to your CRM or spreadsheet. Seamless.AI includes emailing and a dialer, so it is the better fit if you want those in one tool.
Try it on your own market, free.
Search your niche and city free: 100 verified leads, no credit card.
Get my 100 free leads