Upstream Bio vs ZipBio
Upstream Bio vs ZipBio, compared side by side on 22 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: Upstream Bio is on 61/100 and ZipBio on 52/100.
Where each one leads
Upstream Bio
- our overall score: 61/100 against 52/100
- domain rating: 32/100 against 11/100
- headcount: 75 against 7
- headcount growth: +43.4% against +8.1%
- funding raised: $400M against $4.0M
- LinkedIn following: 11,799 against 1,591
ZipBio
Leads on none of the measures we hold for both companies.
At a glance
| Measure | Upstream Bio | ZipBio |
|---|---|---|
| What it is | Clinical-stage biotech developing a monoclonal antibody targeting TSLP for inflammatory diseases. | Compressing biology to develop the next generation of therapies. |
| Category | Life Sciences, Therapeutics, Biotech, Drug Discovery | Life Sciences, Therapeutics, Drug Discovery, Biotech |
| Sells toBusiness model | B2B | B2B |
| Offering | Services | Software |
| Founded | 2021 | 2023 |
| Headquarters | Waltham, United States | Cambridge, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Upstream Bio | ZipBio |
|---|---|---|
| Employees | 75 | 7 |
| Headcount growthLast 12 months | +43.4% | +8.1% |
| Total funding | $400M | $4.0M |
| Latest round | Series B | Seed |
| LinkedIn followers | 11,799 | 1,591 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Upstream Bio | ZipBio |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 61/100 | 52/100 |
| Traction | 59/100 | 42/100 |
| Team | 70/100 | 70/100 |
| Search visibility | 37/100 | 34/100 |
| Quality | 65/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (39/100) | F (36/100) |
| Domain ratingLink authority, 0-100 | 32/100 | 11/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Upstream Bio | ZipBio |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | WordPress | Ghost |
| Frameworks | Jquery, Bootstrap | Not detected |
| Analytics | Google Tag Manager | Not detected |
| Open source | No | Yes |
Upstream Bio vs ZipBio: common questions
Which is better, Upstream Bio or ZipBio?
On our 0-100 score Upstream Bio rates higher (61/100 against 52/100). 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 22 data points above: read the rows that match what you are buying for.
How do Upstream Bio and ZipBio compare on the numbers?
Upstream Bio leads on our overall score (61/100 against 52/100), domain rating (32/100 against 11/100), headcount (75 against 7), headcount growth (+43.4% against +8.1%), funding raised ($400M against $4.0M), LinkedIn following (11,799 against 1,591).
Read the full Upstream Bio review and pricing or the ZipBio review and pricing. You can also browse other Upstream Bio alternatives we track.