About Fabius
Fabius is a Technology company based in San Francisco (United States) founded in 2020 by Andy Day and Neil Madsen, and was acquired by Fractional AI in February 2026. Performance management solutions are offered for enterprise sales representatives. Fabius has raised $125 thousand across 1 funding round from investors including Fractional AI and Y Combinator. The company has 4 employees. Its chief executive, as recorded, is Neil Madsen. Fabius offers products and services including Fabius Platform, Pre-Call Research, Post-Call Automation, and Feedback and Coaching. Its focus areas include Enterprise Applications, Sales Force Automation, Performance Management and High Tech. Its legal entity is FABIUS LABS INC. Its competitors include Atrium, Rallyware and SetSail; 3 of its 3 listed competitors have raised funding.
Company details
Fabius was founded in 2020 and is based in San Francisco, United States. The platform operates in the performance management sector, where solutions are provided to enterprises for overseeing sales representative performance. Knowledge levels related to products, use cases, and features are measured for each representative. Operations focus on enabling structured evaluation and management within sales teams.
- Headquarters San Francisco, United States
- Employees 4
- Founders Andy Day, Neil Madsen
- Stage Acquired
- SectorsTechnology
- Email••••••••
- Phone•••• ••••
- Website fabius.io
- Social LinkedIn X
- Acquired by Fractional AI (Feb 2026)
- Legal Name Fabius Labs Inc.
- Total Equity Funding$125K (USD)
in 1 rounds
- Latest Funding Round$125K (USD), Seed
Jun 2023
- InvestorsFractional AI
& 1 more
- Employee Count4
- Acquired byFractional AI
(Feb 2026)
Products & Services of Fabius
Fabius offers a comprehensive portfolio of products and services, including Fabius Platform, Pre-Call Research, Post-Call Automation, and Feedback and Coaching.
AI tool for analyzing sales data and providing insights
Automates prospect analysis for effective discovery calls
Generates personalized emails and updates CRM systems
Provides scoring and improvement rubrics for sales reps
Funding Insights of Fabius
Fabius has successfully raised a total of $125K through 1 strategic funding round. The most recent funding activity was a Seed round of $125 thousand completed in June 2023. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $125,000
- Total Rounds 1
- Last Round Seed — $125,000
- First Round $125,000
(Jun 2023)
- Investors Count 1
All 1 funding rounds of Fabius with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Jun 2023 | $125,000 | Seed | – | Y Combinator | – |
2 investors in total: 2 institutional.
Investors in Fabius
Fabius has secured backing from 2 investors, including venture fund investors. Prominent investors backing the company include Fractional AI and Y Combinator.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Early-stage startups are accelerated via funding and educational programs. | ycombinator.com | Mountain View, United States | ||
AI software is developed to automate repetitive work processes. | 2024 | fractional.ai | San Francisco, United States |
Investor details for Fabius
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
Verified entity values are shown only after access is granted.
People of Fabius
2 people are tracked at Fabius (2 in leadership); the tracked headcount is 4.
| Name | Role | Group |
|---|---|---|
Andy Day | Co-Founder | Leadership |
Neil Madsen | Co-Founder & CEO | Leadership |
Complete people profiles for Fabius
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
- Full employee list
- Team structure
- Board tenure
- Professional contacts
Verified entity values are shown only after access is granted.
Timeline of Fabius
3 dated milestones of Fabius across 6 years, from founding to its latest funding, stage changes and deals.
- Founded Fabius is founded.
- Funding First funding round of $125K.
- Exit Acquired by Fractional AI.
Competitors of Fabius
Fabius has 3 listed competitors in our database, 3 of them funded. They include Atrium, Rallyware and SetSail.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| atriumhq.com | 2016 | San Francisco, United States | $33.5M | 53 | Workforce analytics platform is offered for sales performance monitoring. | |
| rallyware.com | 2012 | San Francisco, United States | $22.68M | Employees are onboarded, trained, and engaged via a gamified platform. | ||
| setsail.co | 2018 | San Mateo, United States | $33M | 24 | SetSail is recognized as a provider of sales AI and data solutions. |
Detailed competitors of Fabius
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
- Full competitor set
- Operating metrics
- Benchmarks
- Competitive positioning
Verified entity values are shown only after access is granted.
Web traffic of Fabius
The website of Fabius (fabius.io) receives about 1.5K visits a month.
- Monthly visits1.5K
▼ 0.7% vs previous month
Top companies in Sales Force Automation
3 companies that operate in the same segment as Fabius (Sales Force Automation) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Provider of AI-powered customer relationship management software | 2005 | Cambridge, Massachusetts, United States | USD 100.7 M | USD 3.13 B | 8,250 | |
Contact databases and sales intelligence are supplied to businesses. | 2000 | Vancouver, Washington, United States | USD 32 M | USD 1.25 B | 3,510 | |
Sales prospecting and engagement tools are offered to enterprises. | 2011 | Atlanta, Georgia, United States | USD 246.48 M | 1,121 |
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Frequently Asked Questions about Fabius
Fabius was founded in 2020 and raised its 1st funding round 3 years after it was founded.
Fabius is headquartered in San Francisco, United States. It is registered at San Francisco, California, United States.
Neil Madsen is the CEO of Fabius, as recorded in our data. They have also founded this company.
Fabius is a funded company, having raised a total of $125K across 1 funding round to date. The company's 1st funding round was a Seed of $125K, raised on Jun 2023.
Fabius has 4 employees.
Fabius was founded in 2020 and is based in San Francisco, United States. The platform operates in the performance management sector, where solutions are provided to enterprises for overseeing sales representative performance. Knowledge levels related to products, use cases, and features are measured for each representative. Operations focus on enabling structured evaluation and management within sales teams.
Fabius offers Fabius Platform, Pre-Call Research, Post-Call Automation, and Feedback and Coaching.
Fabius has 2 investors. Key investors include Fractional AI, and Y Combinator.
Fabius operates through Fabius Labs Inc..
Yes. Fabius was acquired by Fractional AI in February 2026.