Developer of a protocol buffers technology intended to help companies to change the way they work with APIs throughout t
Developer of a protocol buffers technology intended to help companies to change the way they work with APIs throughout their lifecycle.
Software Development Applications📍 Buffalo, NYFounded 2020
Current Valuation
$718M
as of 2021-Q4
PRIVATE
QL Price
$5.4B
0% vs last round
QuantLogix's current estimate for Buf, published 2026-09-27 — in line with the last disclosed round of $5.4B (2026-08).
Confidence
low
Basis
round anchored
What backs this price
Last disclosed round
$5.4B
2026-08
weight 0.9
How this price has held up
No round has priced for Buf since QuantLogix began publishing a price for it, so there is nothing to grade yet. The claim above is on the record from 2026-09-27 and will be graded against the next priced round. See the full accuracy record →
Which publicly-traded funds already hold it, what $10,000 buys, and whether any route is open to you.
Cite this price as QuantLogix QL Price, Buf, 2026-09-27 (8842627517903548).
The id pins this exact claim, so a citation stays checkable after the price moves.
Model estimate for research — not a quote, target price, or investment advice.
IPO Outlookprivate
Is Buf going public?
No. Buf is private and has not filed to go public. There is no S-1 on file.
What is Buf's valuation in 2026?
Buf is valued at $718M as of 2021-Q4, set by its Series B ($68M, Nov 2021). That is the last confirmed mark, not a live price — private shares do not trade continuously.
Has Buf filed an S-1?
No public S-1 is on file for Buf.
How much has Buf raised?
Buf has raised $93.46M in total, most recently a Series B of $68M in Nov 2021.
Is Buf publicly traded — can you buy Buf stock?
No. Buf is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for Buf on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
Company Profile
Founded
2020
HQ
Buffalo, NY
Employees
45
Total Raised
$93.46M
Last Round
Series B — $68M (Nov 2021)
IPO Status
private
Fundraising Status
Series B · $68M · 4y 10mo ago
privateTotal raised $93.46M
Latest Funding Round
Round
Amount
Date
Lead Investor
Post-Money
Series B
$68M
Nov 2021
—
$718M
Talent Signal
Hiring trend
▶ Hiring steady
0% vs 2026-08
Open roles
5
via careers page
Product-build share
20%
engineering, research, product, design
Trajectory
steady
go-to-market push — Only 20% of open roles build product — hiring is concentrated in sales/marketing/ops (2 of 5 open roles are support).
Actively hiring with no tracked executive churn.
Open roles by month
Open roles by function
■ product-building ■ go-to-market / G&A
modern Protobuf compilerSkip to main contentGradle supportLSP supportPolicy checks
Counted from Buf's live job board as of 2026-09-16; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
SoftwareDeveloper ToolsDeveloper APIs
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2021-Q4. Refreshed quarterly.