Customer.io vs Klaviyo: Revenue, Funding & Team Size Compared
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Customer.io generates $100M in revenue; Klaviyo generates $1.2B. Klaviyo is 12× bigger than Customer.io by revenue. The table below compares Customer.io and Klaviyo on funding, valuation, customers, team size and headquarters — every figure GetLatka has verified for each company.
| Company |  Customer.ioThis company |  Klaviyo |
|---|---|---|
| Revenue | $100M | $1.2B |
| Valuation | $690M | $4.3B |
| Funding raised | $40.3M | $678.5M |
| Customers | 2.9K | 146K |
| Team size | 250 | 2.9K |
| Growth | Not disclosed | 31.6% |
| Founded | 2012 | 2012 |
| HQ | Portland, United States | Boston, United States |
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Customer.io at a glance
Customer.io generates $100M in revenue with 250 employees, headquartered in Portland, United States.
- Revenue
- $100M
- Valuation
- $690M
- Funding
- $40.3M
- Customers
- 2.9K
- Team size
- 250
- Founded
- 2012
Customer.io is a SaaS messaging and marketing automation platform founded in April 2012 by Colin Nederkoorn and a co-founder he met while working in New York. The company enables businesses to send targeted emails and other messages based…
Klaviyo at a glance
Klaviyo generates $1.2B in revenue with 2.9K employees, headquartered in Boston, United States.
- Revenue
- $1.2B
- Valuation
- $4.3B
- Funding
- $678.5M
- Customers
- 146K
- Team size
- 2.9K
- Founded
- 2012
Klaviyo is an American technology company that provides a marketing automation platform, used primarily for email marketing and SMS marketing. It is designed to help grow businesses with personalized newsletters and automated emails.
Other Customer.io alternatives
Customer.io competes with more than the companies on this page. Browse the full alternative lists to compare revenue, funding and team size across the category.
Customer.io vs Klaviyo: frequently asked questions
Is Customer.io or Klaviyo bigger?
Klaviyo is the bigger company by revenue, at $1.2B against $100M for Customer.io.
How much revenue does Customer.io make?
Customer.io generates $100M in annual revenue with a team of 250.
How much revenue does Klaviyo make?
Klaviyo generates $1.2B in annual revenue with a team of 2.9K.
How much funding has Customer.io raised?
Customer.io has raised $40.3M in total funding since it was founded in 2012.
How much funding has Klaviyo raised?
Klaviyo has raised $678.5M in total funding since it was founded in 2012.