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TestBox
AI-powered platform for live software demonstrations.
About TestBox
TestBox provides a demo and proof-of-concept (POC) automation platform for B2B software companies, enabling their sales and marketing teams to create and deliver live, personalized product demonstrations. The company was founded in 2020 by Sam Senior (CEO) and Peter Holland. The founders started TestBox to address the challenges in B2B software evaluation, aiming to create a better experience for both buyers and sellers. TestBox has raised a total of $24.1 million over three funding rounds.
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The platform's core function is to generate fully functional, interactive, and automated demo environments populated with realistic, AI-generated synthetic data. This allows prospective clients to experience the software in a controlled, comprehensive setting that mirrors a real user account, complete with integrations and complex workflows, without requiring extensive engineering support from the seller. TestBox's technology maps the client's product end-to-end to understand its data model and workflows, which allows its AI agents to generate relevant synthetic data and simulate user activity, keeping the demo environments live and up-to-date. The platform also offers features like a Surface Editor for on-the-fly personalization, Demo Playbooks to guide sales reps, and a Sandbox Copilot to assist buyers during their evaluation.
TestBox operates on a subscription-based business model, targeting revenue teams in the B2B SaaS industry. Its clients range from startups to large enterprises, including notable names like Intuit, Gong, Zendesk, CallRail, and Apollo.io. The company reports that its solution helps clients increase win rates, save engineering time, and shorten sales cycles. Initially, TestBox started as a marketplace for buyers to test software side-by-side but pivoted in 2023 to a SaaS product focused on serving B2B sales teams.
At a glance
- Status
- Operational
- Founded
- 2020
- Headquarters
- San Francisco, United States
- Employees
- 35
- Open positions
- 1
- Dealroom signal
- 61.9/100
- Industry
- Marketing, Enterprise Software
- Sub-industry
- CRM & Sales
- Sector
- AI, Core AI
- Technology
- Artificial Intelligence
- Business model
- SaaS
- Client focus
- b2b
Latest news
Press, funding announcements and product moves mentioning TestBox.
Funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| EARLY VC✓Equity / VC | Mar 2026 | $17M | $70M | SignalFire · Felicis · Skip Capital · Airtree | ↗ |
| SEED✓Equity / VC | Jun 2022 | $10M | $40M | SignalFire · Firstminute Capital · Felicis | ↗ |
Financials
Revenue, earnings and other financial measures where available. Years marked “E” are estimates.
Growth signals
Latest recorded traffic for TestBox is 9.5K monthly website visits, down 32.1% over the last three months. TestBox's team declined 14.6% over the past year.
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Investors
From Dealroom's funding and investor records, grouped by the round each investor first entered.
Seed3 investors entered at this stage
Series A3 investors entered at this stage
Skip Capital- AIAirtree
Glitch Capital
Other known investors2 additional known investors
Alumni Ventures
GTMFund
Source: Dealroom Talent Intelligence.
Global footprint
team presence
Market sentiment
An AI-synthesised read of the highest-engagement posts about TestBox on X, ranked by likes and reposts, corporate channels excluded.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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