Peer39 vs Sift
Peer39 vs Sift, compared side by side on 15 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: Peer39 is on 48/100 and Sift on 41/100.
Where each one leads
Peer39
- our overall score: 48/100 against 41/100
- agent readiness: 46/100 against 21/100
- headcount: 61 against 2
- funding raised: $10.0M against $4.3M
- LinkedIn following: 4,855 against 17
Sift
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Peer39 | Sift |
|---|---|---|
| What it is | Develops semantic advertising technology for precise ad-to-content matching using NLP and ML. | Reduced Real-Time Bidding (RTB) infrastructure costs by filtering low-value impressions using machine learning. |
| Category | Marketing, Real-Time Bidding, AdTech, MarTech | Marketing, Programmatic Media, Real-Time Bidding, MFG + SUPPLY CHAIN |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Software |
| Founded | 2005 | 2017 |
| Headquarters | New York, United States | Not published |
| Status | Active | Active |
Size, funding and growth
| Measure | Peer39 | Sift |
|---|---|---|
| Employees | 61 | 2 |
| Headcount growthLast 12 months | +500.0% | Not published |
| Total funding | $10.0M | $4.3M |
| Latest round | Series A | Seed |
| LinkedIn followers | 4,855 | 17 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Peer39 | Sift |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 48/100 | 41/100 |
| Traction | 54/100 | 38/100 |
| Team | Not published | 20/100 |
| Search visibility | 34/100 | 24/100 |
| Quality | 58/100 | 48/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (46/100) | F (21/100) |
| Domain ratingLink authority, 0-100 | 60/100 | Not published |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Peer39 | Sift |
|---|---|---|
| CDN | Cloudflare | Not detected |
| Frameworks | Bootstrap | Not detected |
| Analytics | Google Tag Manager, Linkedin Insight, Tiktok Pixel, Reddit Pixel | Not detected |
| Support stack | HubSpot | Not detected |
Peer39 vs Sift: common questions
Which is better, Peer39 or Sift?
On our 0-100 score Peer39 rates higher (48/100 against 41/100). 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 15 data points above: read the rows that match what you are buying for.
How do Peer39 and Sift compare on the numbers?
Peer39 leads on our overall score (48/100 against 41/100), agent readiness (46/100 against 21/100), headcount (61 against 2), funding raised ($10.0M against $4.3M), LinkedIn following (4,855 against 17).
Read the full Peer39 review and pricing or the Sift review and pricing. You can also browse other Peer39 alternatives we track.