Doppel vs Sideby
Doppel vs Sideby, compared side by side on 12 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: Doppel is on 63/100 and Sideby on 2/100.
Where each one leads
Doppel
- our overall score: 63/100 against 2/100
- domain rating: 55/100 against 17/100
- headcount: 345 against 4
- LinkedIn following: 19,155 against 229
Sideby
- agent readiness: 49/100 against 25/100
At a glance
| Measure | Doppel | Sideby |
|---|---|---|
| What it is | Outpace AI-driven attacks. Unify Digital Risk Protection, Human Risk Management, and Email Security to stop digital threats before they scale, empower your teams to lead your defense, and scale your S | Sideby is a professional learning system that makes innovation visible so teams can learn what works and do more of it, primarily focused on AI for deeper learning in education. |
| Category | EdTech, AI-Powered Learning, Personalized Learning, Skill Development | EdTech, Professional Development, AI in Education, Peer Learning |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Platform |
| Founded | 2021 | 2026 |
| Headquarters | New York, United States | Madison, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Doppel | Sideby |
|---|---|---|
| Employees | 345 | 4 |
| Total funding | $70.0M | Not published |
| Latest round | Series C | Not published |
| Valuation | $600 | Not published |
| LinkedIn followers | 19,155 | 229 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Doppel | Sideby |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 63/100 | 2/100 |
| Traction | 39/100 | Not published |
| Search visibility | 77/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | F (25/100) | D (49/100) |
| Domain ratingLink authority, 0-100 | 55/100 | 17/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Doppel | Sideby |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Cloudflare | Not detected |
| CMS | Not detected | Squarespace |
| Frameworks | Next.js, Tailwind CSS, Bootstrap | Not detected |
| Analytics | Not detected | Google Analytics 4 |
| Support stack | HubSpot | Not detected |
Doppel vs Sideby: common questions
Which is better, Doppel or Sideby?
On our 0-100 score Doppel rates higher (63/100 against 2/100). 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 12 data points above: read the rows that match what you are buying for.
How do Doppel and Sideby compare on the numbers?
Doppel leads on our overall score (63/100 against 2/100), domain rating (55/100 against 17/100), headcount (345 against 4), LinkedIn following (19,155 against 229). Sideby leads on agent readiness (49/100 against 25/100).
Read the full Doppel review and pricing or the Sideby review and pricing. You can also browse other Doppel alternatives we track.