Seamless AI vs TheirStack
Seamless AI vs TheirStack, compared side by side on 16 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Seamless AI is on 55/100 and TheirStack on 33/100.
Where each one leads
Seamless AI
- our overall score: 55/100 against 33/100
- agent readiness: 54/100 against 35/100
- domain rating: 72/100 against 47/100
TheirStack
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Seamless AI | TheirStack |
|---|---|---|
| What it is | AI-powered sales intelligence platform for finding and verifying B2B contact information. | Sales and marketing intelligence platform that identifies potential customers based on technology usage and hiring signals. |
| Category | Sales Intelligence, Lead Generation, B2B Database, Contact Data | Sales Intelligence, Marketing Intelligence, Lead Generation, Market Research |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2015 | 2025 |
| Headquarters | Columbus, United States | Tel Aviv, Israel |
| Status | Active | Active |
Size, funding and growth
| Measure | Seamless AI | TheirStack |
|---|---|---|
| Employees | Not published | 5 |
| Total funding | $2.4M | Not published |
| Latest round | Seed | Not published |
| LinkedIn followers | Not published | 1,210 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Seamless AI | TheirStack |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 55/100 | 33/100 |
| Traction | 32/100 | 8/100 |
| Team | 60/100 | 60/100 |
| Search visibility | 24/100 | 45/100 |
| Quality | 68/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | D (54/100) | F (35/100) |
| Domain ratingLink authority, 0-100 | 72/100 | 47/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Seamless AI | TheirStack |
|---|---|---|
| Hosting | AWS | Vercel |
| CDN | Cloudflare | Vercel |
| CMS | Webflow | Not detected |
| Frameworks | Not detected | Next.js, Tailwind CSS |
| Analytics | Google Tag Manager, Segment | Google Tag Manager |
Product and pricing
| Measure | Seamless AI | TheirStack |
|---|---|---|
| Key features | Not published | Technology Usage & Hiring Signals, Hiring signals, Technographic signals, Buying intent signals, Game-changing targeting criterias, Pains and intents |
Seamless AI vs TheirStack: common questions
Which is better, Seamless AI or TheirStack?
On our 0-100 score Seamless AI rates higher (55/100 against 33/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 16 data points above: read the rows that match what you are buying for.
How do Seamless AI and TheirStack compare on the numbers?
Seamless AI leads on our overall score (55/100 against 33/100), agent readiness (54/100 against 35/100), domain rating (72/100 against 47/100).
Read the full Seamless AI review and pricing or the TheirStack review and pricing. You can also browse other Seamless AI alternatives we track.