About C9
C9 is a Technology company based in San Mateo (United States) founded in 1999, and was acquired by InsideSales in May 2015. Big data intelligence is applied to sales and marketing optimization. C9 has raised $35.58 million across 6 funding rounds from investors including InsideSales, Mayfield and Leapfrog Ventures. Its focus areas include Enterprise Applications, Business Intelligence, Unstructured Data Analytics and Text Analytics. Its competitors include Meltwater, Outreach and Gong; 2 of its 3 listed competitors have raised funding.
Company details
C9 was founded in 1999 in San Mateo, United States, and later acquired by InsideSales. Operations center on big data applications for revenue analysis and optimization across marketing, sales, service, and support sectors. Predictive sales forecasting, pipeline analytics, and machine learning models are integrated to manage pipeline risk, identify key deals, and predict quarterly conversions. Solutions enable enterprises to assess lead pipelines and achieve revenue growth.
- Headquarters San Mateo, United States
- Stage Acquired
- SectorsTechnology
- Website c9inc.com
- Social LinkedIn X Facebook
- Acquired by InsideSales (May 2015)
- Total Equity Funding$35.58M (USD)
in 6 rounds
- Latest Funding Round$12M (USD), Series D
Sep 2013
- InvestorsInsideSales
& 3 more
- Acquired byInsideSales
(May 2015)
Funding Insights of C9
C9 has successfully raised a total of $35.58M across 6 strategic funding rounds. The most recent funding activity was a Series D round of $12 million completed in September 2013. 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 $35.58M
- Total Rounds 6
- Last Round Series D — $12M
- First Round $2M
(Jul 2004)
- Investors Count 3
All 6 funding rounds of C9 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 |
|---|---|---|---|---|---|
| Sep 2013 | $12M | Series D | – | Mayfield, Leapfrog Ventures | – |
| May 2010 | $8M | Series C | – | Mayfield | |
| Sep 2009 | Series B | – | – | – | |
| Jul 2007 | $5M | Series A | – | InterWest Partners, Leapfrog Ventures | – |
| Oct 2005 | $8.58M | Series A | – | – | – |
| Jul 2004 | $2M | Series A | – | – | – |
4 investors in total: 4 institutional.
Investors in C9
C9 has secured backing from 4 investors, including venture fund and institutional investors. Prominent investors backing the company include InsideSales, Mayfield and Leapfrog Ventures.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Mayfield is focused on AI innovation and venture capital investments. | mayfield.com | Menlo Park, United States | ||
Early-stage investing in IT and healthcare ventures. | interwest.com | |||
Consumer products are wholesaled to retailers by Leapfrog Ventures. | leapfrogventures.com | Menlo Park, United States | ||
Cloud-based software for sales playbooks and lead management is provided. | 2004 | insidesales.com | Austin, United States |
Investor details for C9
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
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Verified entity values are shown only after access is granted.
Timeline of C9
4 dated milestones of C9 across 16 years, from founding to its latest funding, stage changes and deals.
- Founded C9 is founded.
- Funding First funding round of $2.0M.
- Funding Latest funding round, Series D, of $12.0M.
- Exit Acquired by InsideSales.
Competitors of C9
C9 has 3 listed competitors in our database, 2 of them funded. They include Meltwater, Outreach and Gong.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| meltwater.com | 2001 | San Francisco, United States | 1 | Cloud-based social media monitoring and analytics are offered for businesses. | ||
| outreach.io | 2014 | Seattle, United States | $489.09M | 1,023 | Sales execution platform provided to streamline strategies and engage customers. | |
| gong.io | 2015 | San Francisco, United States | $584M | 619 | Revenue intelligence solutions are delivered for sales and marketing teams. |
Detailed competitors of C9
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 C9
Websites that share an audience with C9 (c9inc.com).
Websites whose visitors overlap most with C9. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| birst.com | 100% | 6.1K | #2,275,333 | View details | |
investing.businessweek.com | investing.businessweek.com | 96% | – | ||
| c9s.com | 69% | View details |
Top companies in Sales Force Automation
3 companies that operate in the same segment as C9 (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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Related news about C9
Complete news archive for C9
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Frequently Asked Questions about C9
C9 was founded in 1999 and raised its 1st funding round 5 years after it was founded.
C9 is headquartered in San Mateo, United States. It is registered at San Mateo, California, United States.
C9 is a funded company, having raised a total of $35.58M across 6 funding rounds to date. The company's 1st funding round was a Series A of $2M, raised on Jul 2004.
C9 was founded in 1999 in San Mateo, United States, and later acquired by InsideSales. Operations center on big data applications for revenue analysis and optimization across marketing, sales, service, and support sectors. Predictive sales forecasting, pipeline analytics, and machine learning models are integrated to manage pipeline risk, identify key deals, and predict quarterly conversions. Solutions enable enterprises to assess lead pipelines and achieve revenue growth.
C9 has 4 investors. Key investors include InsideSales, Mayfield, Leapfrog Ventures, and InterWest.
Yes. C9 was acquired by InsideSales in May 2015.