Sandbox.

Compute sandboxes for AI agents — microVMs, containers, and snapshot architectures that let agents run code, browse the web, and persist state without crashing each other or the host.

46 vendors · Last update 2026-05-18

Trend · 04 of 07

AI sandbox revenue:
$340M to $1.5M.
The revenue is bimodal too.

Estimated ARR for 10 funded sandbox vendors spans a 200× range. Vercel runs at $340M, Replit $265M — platform-extensions on mature products. The pure-plays sit two orders of magnitude lower: E2B at $1.5M, Daytona $3M, Northflank $2.1M. And then StackBlitz/Bolt went $0 → $40M in 5 months on a token-resale model. Funding shape predicts revenue shape.

Top ARR: $340M; Vercel · run-rate Feb 2026
Fastest growth: 500×; StackBlitz · $80K → $40M, 5mo
Top revenue / FTE: $2.7M; StackBlitz · ~15 employees
Pure-play median: $2.1M; excl. platforms · n=4

Fig. 04 · Estimated ARR · 2026$M ARR

The revenue dumbbell

Bars in √-scale · figures $M ARR · thin strokes mark platform extensions.

Other vendors
Platform play · sandbox bolted to a mature product

Estimated annual recurring revenue in millions of dollars, square-root scale
Vendor	ARR · √-scale	$M ARR
01 Vercel Platform		$340
02 Replit Platform		$265
03 Modal GPU		$50
04 Chainguard Compliance		$40
05 StackBlitz / Bolt Token resale		$40
06 E2B Pure-play		$1.5–18
07 Daytona Pure-play		$3.0
08 Northflank BYOC		$2.1
09 Tensorlake RL		$1.0
10 Blaxel		$0.77

A · Hypergrowth

StackBlitz / Bolt

500× / 5 mo

$80K › $4M › $20M › $40M

In-browser WebContainers · zero cloud-compute COGS · sells Anthropic tokens at markup.

B · Hypergrowth

Replit

35× / 6 mo

$2.8M › $10M › $100M › $265M

Replit Agent · Firecracker microVMs · 1,556% YoY through 2025.

C · Enterprise

Chainguard

8× / 24 mo

$5M › $40M

640% YoY · compliance · custom registries · government networks.

D · Steady

Vercel

3.4× / 24 mo

$100M › $340M

84% YoY · operating with the discipline of a public entity · IPO-ready.

Fig. 05 · Revenue per employee

The AI-native efficiency gap

SaaS median · $167.5K / FTE · the top tier of AI-native vendors run 10–16× that. Ultra-lean teams, AI-leveraged automation.

Exceptional · $1M+

10–16× median

StackBlitz
~$2.7M · 15 FTE
Replit
~$2.6M · 101 FTE

Strong · $300–500K

2–3× median

Vercel
~$378K · 900 FTE
Modal
~$633K · 79 FTE

Medium · $150–250K

~1× median

Chainguard
~$200K · 200 FTE
Daytona
~$167K · 18 FTE

Early · < $150K

0.4–0.7× median

Blaxel
~$110K · 7 FTE
E2B
~$83K · 18 FTE
Northflank
~$72K · 29 FTE

Fig. 06 · Capital efficiency

ARR / cumulative funding · the burn ratio

Best-in-class: 1.0×+ (every dollar raised has turned into a dollar of ARR). StackBlitz at 0.30× looks low but is exceptional given they were near-shutdown 18 months ago. Pure-plays cluster at 0.05–0.10× — still in investment mode.

Vendor	ARR / Funding ratio	ARR	Funding	Multiple
01 Replit	1.18×	$265M	$224M	EXCELLENT
02 Modal	0.45×	$50M	$111M	GOOD
03 Vercel	0.39×	$340M	$863M	GOOD · @ scale
04 StackBlitz	0.30×	$40M	$135M	HYPERGROWTH
05 Daytona	0.10×	$3.0M	$31M	EARLY
06 Northflank	0.07×	$2.1M	$30.8M	EARLY
07 E2B	0.05×	$1.5M	$32.5M	EARLY
08 Chainguard	0.04×	$40M	$892M	INVESTING