Amphistar vs Chalk
Amphistar vs Chalk, compared side by side on 17 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: Amphistar is on 41/100 and Chalk on 55/100.
Where each one leads
Amphistar
Leads on none of the measures we hold for both companies.
Chalk
- our overall score: 55/100 against 41/100
- domain rating: 83/100 against 40/100
- funding raised: $100M against $26.8M
At a glance
| Measure | Amphistar | Chalk |
|---|---|---|
| What it is | We are developing a proprietary technology platform for the ecological production of biosurfactants, that are clean, safe, sustainable and biodegradable | Power stronger schools with the world's most comprehensive K-12 software. PowerSchool unifies the education ecosystem from home to central office. Learn more. |
| Category | EdTech, AI-Powered Learning, Personalized Learning, Skill Development | EdTech, AI-Powered Learning, Professional Development, Personalized Learning |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Platform |
| Founded | 2022 | 2017 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Inactive |
Size, funding and growth
| Measure | Amphistar | Chalk |
|---|---|---|
| Employees | 29 | Not published |
| Total funding | $26.8M | $100M |
| Valuation | Not published | $500M |
| LinkedIn followers | 4,772 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Amphistar | Chalk |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 41/100 | 55/100 |
| Traction | 52/100 | 40/100 |
| Team | Not published | 70/100 |
| Community | 15/100 | Not published |
| Search visibility | 22/100 | 10/100 |
| Quality | 48/100 | 65/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (37/100) | F (38/100) |
| Domain ratingLink authority, 0-100 | 40/100 | 83/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Amphistar | Chalk |
|---|---|---|
| Hosting | Not detected | Self Managed |
| CDN | Cloudflare | Not detected |
| CMS | WordPress | WordPress |
| Frameworks | Jquery, Bootstrap | Tailwind CSS, Bootstrap |
| Analytics | Google Analytics 4 | Google Tag Manager |
Amphistar vs Chalk: common questions
Which is better, Amphistar or Chalk?
On our 0-100 score Chalk rates higher (55/100 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 17 data points above: read the rows that match what you are buying for.
How do Amphistar and Chalk compare on the numbers?
Chalk leads on our overall score (55/100 against 41/100), domain rating (83/100 against 40/100), funding raised ($100M against $26.8M).
Read the full Amphistar review and pricing or the Chalk review and pricing. You can also browse other Amphistar alternatives we track.