Quack AI: Revenue, sale and how it was built
Quack AI (Trainable AI agents for customer support, Israel): Sale estimated at US$15M, February 2026. Evidence grade D: reported, not verified. Team: 2 founders in 2023; 15 people at the seed round in September 2025 and at the sale in February 2026. Launched 2023; sold 31 months after launch.Added
- Outcome
- Sale estimated at US$15M, February 2026
- Evidence
- D reported, not verified
- Launch
- 2023
- Status
- Sold, 31 months after launch
- Team
- 2 founders in 2023; 15 people at the seed round in September 2025 and at the sale in February 2026
- Outside funding
- About US$7M seed, September 2025
- Main channel
- Not stated
What is not verified
The sale price rests on press estimates. Ctech, Calcalist's technology site, wrote that terms were not disclosed and the deal was estimated at about US$15 million. CMSWire attributes the same figure to Fusion VC officials. CMSWire links a Fusion VC post on LinkedIn, which was not read. AUI's release states no price. A reader could look for a filing or a statement by AUI or Quack that gives the amount. The headline number is grade D: one claim or one estimate, with no second source. Aiolum shows it because the story is useful, and marks it so that it is not mistaken for a verified figure.
Quack AI makes AI agents for customer support. An AI agent here is a program that reads a customer's ticket and writes the answer, using the company's own help articles and ticket history. The product also includes AutoQA, which is automatic quality review: the company says it scores both AI answers and human answers against a scorecard. The plans page sets each price by a number of tickets.
Nadav Kemper and Aviram Roisman founded the company in 2023, according to AUI's press release of 23 February 2026. The company announced a seed round of about US$7 million on 11 September 2025. Ctech wrote on the same day that it employed 15 people. The company's release said that "dozens" of brands trusted it. AUI, a company that builds its own AI model for customer service, announced the purchase on 23 February 2026.
The headline figure is not a disclosed price. Ctech, Calcalist's technology site, wrote on 23 February 2026 that financial terms were not disclosed. It added that the deal was estimated at about US$15 million. CMSWire repeated the figure on 25 February 2026 and attributed it to officials of Fusion VC, an investor in Quack. No payment processor, buyer or filing confirms it, so the grade is D.
Why did Quack AI work?
Four causes, in the order they mattered. Each one is a reusable lesson.
It trained one agent for each topic, not one general bot
The company's seed release says its training goes topic by topic and "mirrors the process of training a human agent". Its home page asks why hire one agent when you can train an army. This is the company's description, not a tested result.
It reviewed human and AI answers in the same tool
The home page lists AutoQA, scorecards and trackers for both AI and human agents. Quack's customers page quotes an Artlist manager: customer inquiries run through Quack, and over 65% are fully resolved. The home page adds that QA results are used to fine tune the training.
It escalated to a person when it was unsure
The home page lists three triggers: the agent is not certified to answer, is not confident, or the customer asks for a person. This is a design claim by the company. No downloaded source measures how often it happened.
The buyer wanted the team and its way of modelling topics
AUI's blog post says it liked the technical team and that Quack built a symbolic representation, in code, of the context its agents needed. AUI says the team doubles its research site in Tel Aviv. CMSWire's summary calls the deal an acqui-hire.
How it was built
Few build details are public. These come from the company's own pages and from AUI's blog post. [9, 10, 2, 8]
- The company's own pages say the product runs several large language models: "multi-LLM and proprietary framework". No provider is named in the downloaded pages.
- The terms of service say the platform "may use Third-Party AI Models". They also say Quack does not use customer content to train the models in its agent.
- AUI's blog post says Quack built "a symbolic representation" of context in code, so that agents could handle specialized topics.
- The product connects to a customer's ticket system and knowledge base. The Yotpo case study names Salesforce Service Cloud and Documents360 as that customer's systems.
- The company website is built on Webflow, as the page source of the October 2024 capture shows.
Who tried this before Quack AI, and why did they fail?
Three companies in our database of failed startups sold automated or chat-based customer support and closed. The values below come from that database, read on 11 November 2026, and are not independently verified.
Answerly
The promiseIntelligent FAQ systems and automated replies on company websites, sending only complex issues to people.
Why it diedSetup took months. Customers with high volume had complex tickets that the matching could not handle.
Unfaze AI
The promiseOn-demand customer service run by machine learning to cut response times and cost.
Why it diedIt relied on small and medium companies that were hesitant to invest in AI. Its models needed extensive customization for each client, which raised costs.
Hipmob
The promiseLive chat and in-app messaging for customer support inside mobile apps and websites.
Why it diedIntercom and Zendesk added the same chat features. Limited funding kept it from competing.
The failed startups come from our database of 1,749 dead startups, retold here in our own words. Its entries are AI-assisted summaries of public sources, so these cards carry no evidence grade.
What changed
All three predecessors sold automation or chat that large support platforms could copy, or that needed heavy setup for each customer. Answerly needed months of manual configuration, Unfaze AI needed extensive customization for each client, and Hipmob lost its features to Intercom and Zendesk.
Quack differs in two ways that its own pages describe. Its agents are trained by the customer's staff, and a self-serve plan lists a price on the website. The sources do not show that this removed the setup cost, and the Expert-Led plan still includes a dedicated trainer. The sale to a larger AI company in 2026 is the outcome that the sources report.
Can one person copy Quack AI now?
Not for one person. Parts of the method can be copied.
This is not a one-person business. Two founders started it, and it employed 15 people at the sale, according to AUI. No document confirms the price that the buyer paid. The sources do not show how the first customers were found, so the method of getting customers cannot be copied from this page.
Where it is still open: Support for other narrow sectors where tickets are complex and repeat often. Its case studies name regulated finance and connected-device makers.
- 1Publish a price list early. Quack showed US$40 and US$160 plans on its site before the sale, according to a Wayback copy of 17 February 2026.
- 2Sell to one kind of customer. The seed release says the platform is "purpose-built for SaaS companies".
- 3Offer quality review of human and AI answers together, as the company describes AutoQA.
- 4Name customers with case studies. Quack's home page links eight customer pages.
How much did Quack AI make, and what was it sold for?
Each row shows the evidence grade and the source numbers from the list at the end of this page. The grades are explained in How Aiolum verifies.
| Fact | Value | Grade | How we know | Sources |
|---|---|---|---|---|
| Acquired by AUI | announced 23 February 2026 | B | AUI's press release says it "has acquired Quack AI". AUI's own blog post of the same day says the whole Quack team joins AUI. The release states no price. | [1, 2] |
| Sale price, estimated | about US$15 million | D | Ctech (Calcalist), 23 February 2026: financial terms were not disclosed, "estimated to be in the region of $15 million". CMSWire, 25 February 2026, attributes about US$15 million to Fusion VC officials. Neither gives a document. | [3, 4] |
| Founded | 2023 by Nadav Kemper (CEO) and Aviram Roisman (CTO) | B | AUI's release and Ctech both give the year 2023 and no month. AUI's blog post gives the same two names. | [1, 2, 3] |
| Team at the sale | 15 people | B | AUI's release says the company "currently employs 15 people". AUI's blog post says "Fifteen excellent people". | [1, 2] |
| Team at the seed round, September 2025 | 15 people | C | Ctech, 11 September 2025: "Quack, which employs 15 people". The company's own release of that day gives no headcount. | [6] |
| Seed round, September 2025 | about US$7 million | C | The company's press release of 11 September 2025 says it raised US$7 million in seed funding led by Hanaco Ventures and Storytime Capital. AUI's release says "approximately $7 million". | [5, 1] |
| Customers named by AUI | Artlist, Yotpo, WalkMe, Hologram | B | AUI's release says the platform "serves dozens of global customers". AUI's blog post says "dozens of global paying customers". Neither lists prices or contract sizes. | [1, 2] |
| Plans on the company page | Self-Serve US$40 for up to 3,000 tickets; Expert-Led US$160 for 3,000+ tickets | C | Plans page, read 11 November 2026, and a Wayback copy of 17 February 2026, six days before the sale. The billing period is not stated. | [7] |
| Domain before the company, March 2022 | a Namecheap parking page | C | The earliest Wayback capture with content, 19 March 2022, says the domain "was recently registered at Namecheap". It is not a business. Terms and privacy pages name no earlier product or company. | [11, 10] |
| First product page captured | 1 October 2024: "The AI Operating System for Customer Support" | C | A capture of 30 April 2024 only redirects to a /lander page. The October 2024 copy is the earliest with product text. | [11, 8] |
| Yotpo result, as the company writes it | 70% of tickets automated; knowledge coverage up by over 50% | C | Quack's own case-study page: "we managed to improve the coverage levels of the Knowledge by over 50% and worked to automate 70% of their tickets". | [9] |
| Hologram result, as the company writes it | 50% fewer iterations per case; handling time down 30% | C | Quack's own case-study page for Hologram. The page does not give the period or the method. | [9] |
| Artlist result, as a named person is quoted | over 65% of inquiries fully resolved | C | Quack's customers page quotes the Head of Customer Success at Artlist on this figure. Artlist has not confirmed it elsewhere in the downloaded sources. | [9] |
| Sale estimate compared with the seed round | about 2.1 times | calc | Calculated: US$15 million (press estimate) divided by US$7 million (seed, announced by the company). Both figures are approximate. | [3, 5] |
| Months from the start to the sale | about 31, with a range of 26 to 37 | calc | Calculated: sources give only the year 2023. July 2023 to February 2026 is 31 months; January 2023 gives 37 and December 2023 gives 26. | [1, 2] |
How to read this table. Grade B is a statement by the buyer, AUI. Grade C is a statement by the company on its own pages. Grade D is a press estimate with no document behind it. A calc value was computed on this page.
| Plan | Per month, billed yearly (US$) | Per month, billed monthly (US$) | Limit |
|---|---|---|---|
| Self-Serve Plan | 40 | up to 3,000 tickets; the billing period is not stated | |
| Expert-Led Plan | 160 | 3,000+ tickets; includes a dedicated customer-success manager and AI trainer |
Both copies show the same two prices. The page does not say whether a price is per month or per year. The table lists each price under monthly and leaves the yearly column empty. The limit is a number of tickets.
When did Quack AI launch, and how did it grow?
From a parked domain in 2022 to a sale in February 2026. Each entry carries its grade.
- 19 March 2022CThe domain quack.ai shows a Namecheap parking page. No product is online. [11]
- 2023BNadav Kemper and Aviram Roisman found the company, according to AUI and Ctech. The month is not given. [1, 3]
- 1 October 2024CThe earliest captured home page with product text offers an "AI operating system for customer support". [11, 8]
- 11 September 2025CThe company announces a seed round of about US$7 million. It has 15 people and says it serves "dozens" of brands. [5, 6]
- 6 October 2025CThe newest post on the company blog is dated this day; its topic is proactive support. [12]
- 17 February 2026CA Wayback copy of the plans page shows US$40 and US$160 plans, as the live page does today. [7]
- 23 February 2026BAUI announces that it has acquired Quack AI. The team joins AUI and doubles its Tel Aviv research site. [1, 2]
- 25 February 2026DCMSWire reports a value of about US$15 million and attributes it to Fusion VC officials. [4]
What could go wrong for Quack AI?
The risks are the mirror image of the causes above.
What is not verified
The sale price rests on press estimates. Ctech, Calcalist's technology site, wrote that terms were not disclosed and the deal was estimated at about US$15 million. CMSWire attributes the same figure to Fusion VC officials. CMSWire links a Fusion VC post on LinkedIn, which was not read. AUI's release states no price. A reader could look for a filing or a statement by AUI or Quack that gives the amount.
Only the buyer says that the customers pay
AUI's blog post wrote of "dozens of global paying customers" and named four. The company's own release said only that "dozens" of brands trusted it. The quack.ai home page shows eight customer logos and links eight customer pages. WalkMe is named by AUI but has no logo or case study on the pages read on 11 November 2026. No customer confirms what it pays.
Trust signals on the home page
The home page shows eight customer logos, ISO, AICPA and GDPR badges, and a sticker that reads "99% accuracy *but we are on it". Six testimonials carry a name and a title. Three match a case study (Artlist, Yotpo, Hologram). The other three name no company. One speaker's surname is spelled in two ways, on the home page and on the Hologram page. Customer pages also show short feedback cards with duck drawings. Each card names a type of customer, not a person. One card reads "{Agent name} is the best!". No page links the badges to a certificate.
Where the company sits, and what the sale was
The seed-round release is dated San Francisco. It says the company has a presence in Tel Aviv, San Francisco and New York. The website footer says San Francisco. Ctech calls it an Israeli startup and CMSWire calls it California-based. The terms of service name Quack AI Co. and the law of Delaware. AUI says the whole team joins AUI. CMSWire's summary calls the deal an acqui-hire.
Pricing page details
The plans page does not say whether the prices are per month or per year. The footer reads "© 1993 Quack", which cannot be the company's start year. The home page tagline contains a mild pun. The terms say the platform is for adults aged 18 or older and for business use.
Sources
The grade next to each source is the best grade that the source can support. "Read in full" means that the text of the page was downloaded and the numbers were checked in it.
- B AUI Acquires Quack AI, Developer of AI Customer Service Agent Technology (PR Newswire, 23 February 2026)Read in full. Release by the buyer. Source for the sale, the founders, the year 2023, 15 people, the seed round and the named customers. It states no price.
- B Welcoming Quack AI to AUI (AUI blog, 23 February 2026)Read in full. The buyer's own post. Source for "dozens of global paying customers", 15 people, the seed amount and the reasons for the purchase.
- D Israeli AI firm AUI acquires Quack AI in push toward task-oriented systems (Ctech by Calcalist, 23 February 2026)Read in full. Source for the estimate of about US$15 million, with terms not disclosed. The article gives no basis for the estimate.
- D AUI Acquires CX Start-up Quack AI in $15M Deal to Expand Agentic AI for Customer Service (CMSWire, 25 February 2026)Read the article text. Says Fusion VC officials valued the deal at about US$15 million. Its summary box uses the word acqui-hire.
- C Quack Raises $7 Million Seed Round to Redefine Customer Experience with Proactive Agentic AI (PR Newswire, 11 September 2025)Read in full. The company's own release. Source for the seed round, the investors and the description of topic-by-topic training.
- C Quack raises $7 million Seed round to bring proactive AI to customer support (Ctech by Calcalist, 11 September 2025)Read in full. Reports the seed round and says the company employs 15 people.
- C Quack AI plans page, read 11 November 2026, with a Wayback copy of 17 February 2026Read in full, live and in the Wayback copy. Both show the same prices. The billing period is not stated.
- C Quack AI home page, read 11 November 2026, and a Wayback copy of 1 October 2024Read in full. Source for the product description, the logos, badges and testimonials, the Webflow page source and the early product wording.
- C Quack AI customer pages: Artlist, Yotpo, Hologram and the customers index, read 11 November 2026Read the Artlist, Yotpo and Hologram pages in full and the index. The results are written by the company.
- C Quack AI terms of service and privacy policy, read 11 November 2026Read in full. Both name "Quack AI Co" and no earlier company or product. The terms give the age limit and describe third-party AI models.
- C Wayback Machine capture list for quack.ai and the capture of 19 March 2022Read the capture list and the 2022 page. The 2022 page is a Namecheap parking page; the April 2024 capture only redirects.
- C Quack AI blog index, read 11 November 2026Read in full. Four posts dated 14 May 2025 to 6 October 2025. No post after the sale.
- C Database of failed startups, local exportRecord pages read on the website on the day of writing. AI-written summaries, not independently verified. Source for the failed predecessors.
Run this company? Send corrections or a verified figure to aiolum@livyden.com