Table of Contents
- Amplitude founders and financing at a glance
- Who is Spenser Skates?
- Who is Curtis Liu?
- Who is Jeffrey Wang?
- Why the founders built Amplitude
- What Amplitude does
- What makes the founder thesis distinctive?
- Amplitude financing and transaction history
- What the latest milestone was intended to change
- Founder and company timeline
- The founders' public thesis
- Strengths, risks and unresolved questions
- Evidence to watch over the next 12 to 18 months
- Frequently asked questions
Spenser Skates, Curtis Liu and Jeffrey Wang founded Amplitude, the ai-powered behavioral and digital analytics platform business now serving product, engineering, growth, marketing and data teams. Spenser Skates is Co-founder and Chief Executive Officer; Curtis Liu is Co-founder and Chief Technology Officer; Jeffrey Wang is Co-founder and former Chief Architect.
The latest material financing milestone covered here is Nasdaq direct listing, dated 2021-09-28. The relevant total is $336M raised before listing, labelled as company-confirmed private funding total; Amplitude now trades publicly as AMPL. It is company-level capital or transaction value—not founder net worth.
Authentic Amplitude website evidence captured on 21 July 2026.
Amplitude founders and financing at a glance
| Field | Verified information |
|---|---|
| Founding team | Spenser Skates, Curtis Liu and Jeffrey Wang |
| Current or documented roles | Spenser Skates: Co-founder and Chief Executive Officer; Curtis Liu: Co-founder and Chief Technology Officer; Jeffrey Wang: Co-founder and former Chief Architect |
| Company | Amplitude — amplitude.com |
| Founded | 2012 |
| Headquarters or operating scope | San Francisco, California, United States; Nasdaq: AMPL |
| Product category | AI-powered behavioral and digital analytics platform |
| Primary customer | Product, engineering, growth, marketing and data teams |
| Latest financing milestone | Nasdaq direct listing, 2021-09-28 |
| Total or transaction value | $336M raised before listing — company-confirmed private funding total; Amplitude now trades publicly as AMPL |
| Public status | Privately held or part of an acquirer |
| Last verified | 21 July 2026 |
Who is Spenser Skates?
Spenser Skates is Co-founder and Chief Executive Officer at Amplitude. Spenser Skates's role should be read in its current context: founder status is permanent, while executive responsibility can change as a company scales, lists publicly or is acquired.
Founder profile: Connect with Spenser Skates on LinkedIn.
Spenser Skates in Amplitude’s official co-founder and CEO portrait.
In the founding team, Spenser Skates contributed to the combination of product judgment, technical execution and go-to-market work behind Amplitude. The public evidence does not justify claims about private ownership, personal wealth or undisclosed internal responsibilities.
Who is Curtis Liu?
Curtis Liu is Co-founder and Chief Technology Officer at Amplitude. Curtis Liu's role should be read in its current context: founder status is permanent, while executive responsibility can change as a company scales, lists publicly or is acquired.
Founder profile: Connect with Curtis Liu on LinkedIn.
Curtis Liu in Amplitude’s official co-founder and CTO portrait.
In the founding team, Curtis Liu contributed to the combination of product judgment, technical execution and go-to-market work behind Amplitude. The public evidence does not justify claims about private ownership, personal wealth or undisclosed internal responsibilities.
Who is Jeffrey Wang?
Jeffrey Wang is Co-founder and former Chief Architect at Amplitude. Jeffrey Wang's role should be read in its current context: founder status is permanent, while executive responsibility can change as a company scales, lists publicly or is acquired.
Founder profile: Connect with Jeffrey Wang on LinkedIn.
Jeffrey Wang in Amplitude’s official co-founder portrait.
In the founding team, Jeffrey Wang contributed to the combination of product judgment, technical execution and go-to-market work behind Amplitude. The public evidence does not justify claims about private ownership, personal wealth or undisclosed internal responsibilities.
Why the founders built Amplitude
Skates, Liu and Wang built Amplitude after seeing how difficult it was for teams to connect product releases with real user behavior. Their thesis moved analytics from periodic reporting toward a continuous build, ship, learn and improve loop, with self-service behavioral data becoming part of everyday product decisions.
This is documented company history plus editorial assessment. It does not establish private motivations beyond what the founders and company have said publicly.
What Amplitude does
Amplitude combines product and web analytics, experimentation, session replay, customer feedback and audience activation. Its newer AI layer adds agents, natural-language analysis, MCP access, AI-assistant workflows and measurement for AI products while retaining governed behavioral data as the decision foundation.
The best AI search optimization agencies comparison is useful for readers comparing the authority and visibility work that sits outside a customer-engagement platform. The guide to citation-ready content for AI search explains a related content-distribution problem.
What makes the founder thesis distinctive?
The CSV names Spenser Skates alone. Amplitude's company page and public-company filing identify Curtis Liu and Jeffrey Wang alongside Skates as the three founders. Jeffrey Wang left his Chief Architect role in 2025, while Skates and Liu remain operating executives.
Our assessment is that durable differentiation must show up in customer outcomes, workflow adoption, reliable data movement and lower operating cost—not only in feature count or AI branding.
Amplitude financing and transaction history
| Announcement date | Round or instrument | Amount | Lead or named participants | Reported use | Evidence status |
|---|---|---|---|---|---|
| 2012–2015 | Seed and Series A | Approximately $11M combined reported | Y Combinator and venture investors | Develop the initial mobile and product analytics platform | Reported |
| 2016 | Series B | $15M | Battery Ventures | Scale product analytics | Company-confirmed |
| 2017 | Series C | $30M reported | IVP and investors | Enterprise and international expansion | Reported |
| 2018 | Series D | $80M | Sequoia Capital | Global growth and product expansion | Company-confirmed |
| 2020 | Series E | $50M reported | GIC and investors | Scale digital optimization | Reported |
| 9 June 2021 | Series F | $150M at a $4B pre-money valuation; $336M total | Sequoia Capital with GIC, Battery Ventures and IVP | Accelerate the digital-optimization platform | Company-confirmed |
| 28 September 2021 | Direct listing | Nasdaq: AMPL | Public market | Become a publicly traded company | Company-confirmed |
| — | Current qualified figure | $336M raised before listing | — | — | company-confirmed private funding total; Amplitude now trades publicly as AMPL |
The headline uses Nasdaq direct listing because it is the clearest recent milestone in the verified record. Different instruments are not silently combined: acquisition consideration, IPO proceeds, primary funding and secondary liquidity have different meanings.
What the latest milestone was intended to change
Public statements connect the milestone to some combination of product investment, AI capability, geographic expansion, hiring, acquisitions or shareholder liquidity. Those plans are attributed intentions, not proof that each outcome occurred. Evidence should include shipped capabilities, adoption, retention, unit economics and customer results after the transaction.
Founder and company timeline
| Period | Milestone |
|---|---|
| 2012 | Skates, Liu and Wang found Amplitude and enter Y Combinator. |
| 2014 | Amplitude launches from stealth as a real-time mobile analytics platform. |
| 2016–2020 | Series B through E funding supports global and enterprise expansion. |
| June 2021 | A $150M Series F brings total private funding to $336M. |
| September 2021 | Amplitude begins trading on Nasdaq through a direct listing. |
| 2025–2026 | The platform expands through acquisitions and agentic AI analytics. |
The founders' public thesis
Across the available company history, the founders argue that customer data becomes valuable when operating teams can turn it into timely, coordinated action. The exact emphasis differs by company—category creation, accessibility, data ownership, real-time infrastructure or AI-assisted execution—but the test is similar: can a customer make better decisions without adding hidden complexity?
Strengths, risks and unresolved questions
Visible strengths
- A founding thesis attached to a recurring and measurable marketing workflow.
- Product history and financing evidence available from primary sources.
- A platform broad enough to influence data, orchestration and customer communication.
Material risks
- Behavioral analytics can collect highly sensitive interaction data, so minimization, consent, masking, retention and access controls are essential.
- AI-generated analysis and recommendations need reproducible queries, confidence signals and human review.
- The $4B figure attached to the 2021 Series F was a pre-money private valuation, not a current market capitalization or founder wealth estimate.
Questions buyers and researchers should ask
- Which founder roles are current, and which describe historical service?
- How is incremental customer or revenue impact measured against a control?
- What data, consent, model and deliverability controls constrain automated action?
- Which transaction amounts were primary capital, secondary liquidity or acquisition consideration?
- What implementation resources are required before the platform produces reliable value?
Evidence to watch over the next 12 to 18 months
Watch for independently explainable retention and expansion, transparent AI evaluation, successful migrations, product delivery tied to the announced financing purpose and current executive-role disclosures. For public companies, filings provide a stronger operating signal than promotional customer counts alone. For private companies, future financing announcements should identify transaction composition clearly.
Frequently asked questions
Who founded Amplitude?
Amplitude was founded by Spenser Skates, Curtis Liu and Jeffrey Wang.
What does Amplitude do?
Amplitude provides ai-powered behavioral and digital analytics platform capabilities for product, engineering, growth, marketing and data teams.
What is Amplitude's latest financing milestone?
The latest milestone verified for this profile is Nasdaq direct listing, dated 2021-09-28.
How much funding has Amplitude raised?
The qualified figure used here is $336M raised before listing. Its status is company-confirmed private funding total; Amplitude now trades publicly as AMPL; it should not be interpreted as founder wealth.
What should buyers verify?
Buyers should test data integration, consent controls, measurement, implementation effort, support, exportability and the limits placed on automated or AI-generated actions.
Tolu S.
Associate Director
Evidence-led product reviews and founder profiles for search, marketing, authority, and AI visibility teams.
