Speak

Speak is a language learning app that sets users on the path to fluency with the world’s most advanced AI tutor.

Voice and audio AI Education Consumer and socialY CombinatorThiel Fellowship

Latest funding

$78M Series B+ · December 10, 2024

Led by Accel · Source: techcrunch.com

Latest round on record: Series B+, March 2025, amount undisclosed.

Total raised: $141M across 4 sourced rounds

All 7 rounds ↓

Website: speak.com.

X: @speak · 1,536 followers.

LinkedIn: linkedin.com.

Categories: Voice and audio AI Education Consumer and social.

Sectors: Consumer, Social, Artificial Intelligence, Education.

Stage: Series B+.

Based in: San Francisco, United States.

Founded: 2016.

Total raised: $141M in 4 sourced rounds.

Last round: Mar 28, 2025 · 594 days ago.

Team: 40 people on the team page.

On Recent Funding since: Sep 28, 2026.

Signals

X account@speak · created Mar 3, 2023 (3 years old) · 1,536 followers

Website registeredSep 9, 1995 (31 years old)

About Speak

Built on the core learning philosophy of getting users speaking out loud as much as possible, Speak's AI language-learning experience encourages dynamic two-way dialogue through personalized content and real-time speech recognition.

TIMELINE · MONEY RAISED

Speak | 1455 days on the record

@speak·Raised $141M in 4 sourced rounds

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

March 28, 2025
Series B+ · amount undisclosed
Source: fundraisingfox.com
December 10, 2024
Series B+ · $78M · $1B valuation
AAccel (lead)
Source: techcrunch.com
June 25, 2024
Series B+ · $20M
BBuckley Ventures (lead), FFuture Positive, JJeff Weiner, KKhosla Ventures, OOpenAI Startup Fund, PPaul Graham, TThe Venture Collective
Source: thesaasnews.com
August 31, 2023
Round · $16M
Source: fundraisingfox.com
March 3, 2023
X account created
November 18, 2022
Series B+ · $27M
OOpenAI Startup Fund (lead), BBuckley Ventures, FFounders Fund, GGokul Rajaram, JJosh Buckley, JJustin Mateen, LLachy Groom
Source: startuparound.com
Winter 2017
YY Combinator · batch
Source: ycombinator.com
September 9, 1995
Website created
Date unknown
TThiel Fellowship · accelerator or program
Source: thielfellowship.org

Founders and team

AH
Andrew Hsu Cofounder & CTO at Speak

@adhsu · LinkedIn · source: foundertrace.com
CZ
Connor Zwick CEO

@connorzwick · LinkedIn · source: foundertrace.com
LK
Lakshmi Krishnan Machine Learning Engineer

Investors

Companies like Speak

EElsa$23M Series B+ · Sep 2023
AAmamihePre Seed · Feb 2026
SScoredataSeries A
PPele ReadingPre Seed · Jul 2026
CChitterChatterSeed · Jul 2026
LLucida AI$7M Seed · Jul 2026

Other companies backed by Accel

SSE3 Labs$30M Seed · Nov 2026
SSennder$253.7M Series B+ · Nov 2026
PPowerUp Money$10M Series A · Nov 2026
AArda$230M Seed · Oct 2026
RRapidCanvas$29M Series B+ · Oct 2026
CCosmochute$1.5M Pre Seed · Oct 2026

Accel portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/speak (get a free API key).