Weights & Biases

● Recently verified Last updated: Apr 30, 2026 Data last verified: May 22, 2026

Weights & Biases: $1.25B valuation, IPO Readiness 75, Series D. MLOps platform for tracking, visualizing, and managing machine learning experiments. Track live on The IPO Stack.

Series DArtificial Intelligencepre-ipo
75
/100
IPO Readiness Score
Grade B — Moderate IPO Readiness
TechStackIPO proprietary score based on funding scale, valuation, stage progression & momentum.
Track Weights & Biases →

MLOps platform for tracking, visualizing, and managing machine learning experiments.

Valuation
$1.25B
Total Funding
$550M
Stage
Series D
Sector
Artificial Intelligence
Headquarters
San Francisco, CA
CEO
Lukas Biewald
IPO Status
pre-ipo

Funding History

Round Amount Date Lead Investors
Series C $135M Oct 2021 NEA, Insight Partners
Series B $45M Apr 2021 Insight Partners, Coatue
Series A $15M Aug 2019 Felicis Ventures
Seed $4M Sep 2017 Trinity Ventures
The IPO Stack Newsletter

Get Tuesday's IPO moves + one deep-dive in your inbox

Scores, valuations, and IPO signals for the companies that matter. 5-minute read, every Tuesday.

🚀

2026 IPO Watchlist

Top companies most likely to IPO in 2026, ranked by IPO Readiness Score.

SpaceX
$275B · Aerospace & Defense
99
Readiness
OpenAI
$852B · Artificial Intelligence
89
Readiness
Canva
$42B · Design & Creative
88
Readiness
Replit
$12B · Artificial Intelligence
86
Readiness
Stripe
$159B · Fintech
86
Readiness
Anthropic
$380B · Artificial Intelligence
85
Readiness
Scale AI
$14B · Artificial Intelligence
85
Readiness
Plaid
$13.4B · Fintech
84
Readiness

Related Analysis

📊 IPO Readiness Stack 🏭 Artificial Intelligence Sector ⚖️ vs SpaceX ⚖️ vs OpenAI 📈 IPO Pipeline

Track Weights & Biases IPO timeline, funding rounds, investor activity, and valuation on TechStackIPO — the pre-IPO intelligence platform.

Frequently Asked Questions

When is Weights & Biases going public? +

Weights & Biases has not announced a specific IPO date as of 2026. With an IPO Readiness Score of 75/100, the company shows strong pre-IPO signals. Subscribe to The IPO Stack newsletter for weekly updates.

What is Weights & Biases's current valuation? +

Weights & Biases is valued at $1.25B as of October 2021. This valuation is based on its most recent private funding round tracked by TechStackIPO.

How can I invest in Weights & Biases before IPO? +

Accredited investors can access Weights & Biases shares through secondary market platforms, pre-IPO investment funds, and broker-dealer platforms that facilitate private company transactions. TechStackIPO's marketplace tracks available access options. Note: pre-IPO investments carry higher risk and limited liquidity compared to public market investing.

What is Weights & Biases's IPO Readiness Score? +

Weights & Biases scores 75/100 (Grade: B) on TechStackIPO's IPO Readiness Index. The score evaluates funding scale, valuation trajectory, funding momentum, stage progression, and company maturity. Scores above 70 indicate strong near-term IPO potential.

How much total funding has Weights & Biases raised? +

Weights & Biases has raised $550M in total venture capital and private equity funding, with backing from NEA, Insight Partners, NVIDIA.

Who are Weights & Biases's key investors? +

Weights & Biases's notable investors include NEA, Insight Partners, NVIDIA, Coatue, Felicis Ventures. Full investor details, funding round history, and lead investor breakdowns are available on TechStackIPO.

What sector is Weights & Biases in? +

Weights & Biases is a Artificial Intelligence company. MLOps platform for tracking, visualizing, and managing machine learning experiments.

📡 IPO Intelligence
$49/mo — Unlimited Reports + Real-Time Updates
Unlimited company analysis reports — all 375+ companies
Real-time IPO alerts — know the moment S-1s are filed
Verified data updated daily — not chatbot hallucinations
💡 Tracking multiple companies? Full access pays for itself after 3 reports.
$49
per month
Subscribe Now →
Cancel anytime · Secure via Stripe
Institutional Research
$19 — Get the Complete Weights Biases Analysis Brief
Executive summary & IPO readiness breakdown
Competitive positioning & funding trajectory
Bull / bear thesis with pricing projections
S-1 timeline estimate & risk assessment
$19
One-time
Don't find it useful? Refund within 7 days.
Secure checkout · Stripe · 24h delivery