weblink
Unicorn · $15.8BSan Francisco, US · Founded 2023 · 15 known investors
Sierra helps businesses build better, more human customer experiences using AI. The company partners with industry leaders to transform customer experiences and deliver measurable business impact at scale.
Also known as Sierra · Sierra AI · Sierra Technologies, Inc.
Founders & leadership
weblink was founded in 2023 by Bret Taylor and Clay Bavor.


Investors · 15
Funding
SEC filings, press & company announcements$1.6B disclosed across 4 of 5 rounds · 2024–2026
- $950MSeries EMay 2026 · 4 sources
Google Ventures (lead), GV (lead), Tiger Global (lead), Benchmark, Greenoaks, Sequoia Capital
Source ↗ - $350MSeries CSep 2025 · 2 sources
Greenoaks (lead), Benchmark, ICONIQ Capital, Sequoia Capital, Thrive Capital
Source ↗ - $175MSeries BOct 2024 · 2 sources
Greenoaks (lead), Benchmark, ICONIQ Capital, Sequoia Capital, Thrive Capital
Source ↗ - $110MLaunch / SeedFeb 2024 · 2 sources
Benchmark (lead), Sequoia Capital (lead), ICONIQ Capital, Thrive Capital
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Valuation · disclosed
Disclosed eventsSource: SEC prospectus filings, and round valuations the company or its investors disclosed — follow each entry's link for the claim.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Founder mafia
The Sierra mafia →7 people who came through Sierra went on to found or lead other companies.
Competitors · 5
by search overlapCompanies competing with weblink for the same Google search keywords, organic and paid, via search-intersection analysis.
Timeline · 6
launches, deals, and filingsSierra acquired Takeoff and said the combined teams would build Horizon, a platform for long-horizon AI agents.
Sierra and SoftBank announced a partnership making SoftBank the exclusive sales channel in Japan for Sierra's conversational AI platform.
Round led by Alphabet's GV and Tiger Global, joined by Benchmark, Sequoia, Greenoaks and others; aggregator lists a $15.8 billion post-money valuation.
$950M source ↗
Company confirmed it was raising $350 million, with Greenoaks Capital expected to lead.
$350M source ↗
Round led by Greenoaks Capital with participation from Thrive Capital and ICONIQ, bringing total funding to $285 million.
$175M source ↗
Company came out of stealth with a pitch for a conversational AI platform for businesses, alongside a $110 million seed/launch round.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
Legal entities · 1
corporate structureIn the news
▸Research sources · 12
primary sources listed
- Better customer experiences. Built on SierraSierra · company site
- SIERRA TECHNOLOGIESsierra.ai · web
12 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does weblink do?
- Sierra helps businesses build better, more human customer experiences using AI. The company partners with industry leaders to transform customer experiences and deliver measurable business impact at scale.
- Who founded weblink?
- weblink was founded by Bret Taylor, Clay Bavor in 2023.
- Who are weblink's investors?
- weblink's investors include Comcast Ventures, Conviction, Everybody Ventures, ICONIQ, Kleiner Perkins, Mech Ventures, Sequoia Capital, SoftBank Vision Fund and 7 more.
- How much funding has weblink raised?
- weblink has disclosed $1.6B raised across 4 of its 5 known rounds.
- Where is weblink headquartered?
- weblink is headquartered in San Francisco, US.

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