Rollup vs Sift Stack
Rollup vs Sift Stack, 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: Rollup is on 42/100 and Sift Stack on 55/100.
Where each one leads
Rollup
Leads on none of the measures we hold for both companies.
Sift Stack
- our overall score: 55/100 against 42/100
- agent readiness: 51/100 against 37/100
- domain rating: 40/100 against 28/100
- headcount: 84 against 5
- LinkedIn following: 13,132 against 855
At a glance
| Measure | Rollup | Sift Stack |
|---|---|---|
| What it is | Software for manufacturing process optimization and digital twin creation. | Bringing SpaceX's software for managing complex telemetry data to the factory floor. |
| Category | Advanced Manufacturing, Smart Manufacturing, Industrial Automation, Digital Twin | Advanced Manufacturing, Industrial Automation, Smart Manufacturing, Digital Twin |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Software |
| Founded | 2021 | 2021 |
| Headquarters | Tel Aviv, Israel | El Segundo, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Rollup | Sift Stack |
|---|---|---|
| Employees | 5 | 84 |
| Valuation | Not published | $274M |
| LinkedIn followers | 855 | 13,132 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Rollup | Sift Stack |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 42/100 | 55/100 |
| Traction | 8/100 | 19/100 |
| Team | 30/100 | 60/100 |
| Community | 15/100 | Not published |
| Search visibility | 33/100 | 39/100 |
| Quality | 58/100 | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (37/100) | D (51/100) |
| Domain ratingLink authority, 0-100 | 28/100 | 40/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Rollup | Sift Stack |
|---|---|---|
| CDN | Not detected | Cloudflare |
| CMS | Not detected | Webflow |
| Analytics | Not detected | Google Tag Manager, Linkedin Insight |
| Support stack | Not detected | HubSpot |
Rollup vs Sift Stack: common questions
Which is better, Rollup or Sift Stack?
On our 0-100 score Sift Stack rates higher (55/100 against 42/100). 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 Rollup and Sift Stack compare on the numbers?
Sift Stack leads on our overall score (55/100 against 42/100), agent readiness (51/100 against 37/100), domain rating (40/100 against 28/100), headcount (84 against 5), LinkedIn following (13,132 against 855).
Read the full Rollup review and pricing or the Sift Stack review and pricing. You can also browse other Rollup alternatives we track.

