What is the best alternative to Klaviyo?

Based on company usage data, HubSpot is the most widely adopted alternative, detected on 121,992 websites.

How many companies use Klaviyo?

AgentData detects Klaviyo on 65,754 company websites as of September 2026.

Are companies switching away from Klaviyo?

AgentData tracks technology changes across company websites. Check back for switching trends as we detect more changes.

What do Klaviyo and HubSpot have in common?

Among the companies AgentData has profiled in full, 4% of those using Klaviyo also run HubSpot (137 companies).

Klaviyo alternatives

Ranked by real company usage

The most popular alternatives to Klaviyo based on AgentData's analysis of 65,754 company websites are HubSpot (121,992 companies), Mailchimp (97,099 companies), Constant Contact (16,794 companies).

Klaviyo: 65,754 companiesCategory: Marketing automation15 alternatives found

Top alternatives to Klaviyo

HubSpot

121,992 companies4% of profiled Klaviyo users also run this

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Mailchimp

97,099 companies9% of profiled Klaviyo users also run this

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Constant Contact

16,794 companies0% of profiled Klaviyo users also run this

15,163 companies

6,799 companies

3,332 companies

2,870 companies

1,880 companies

1,856 companies

#10

1,779 companies

#11

1,352 companies

#12

908 companies

#13

849 companies

#14

816 companies

#15

564 companies

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65,754 companies with emails, tech stacks, and contacts

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1,000 lookups · API access · CSV exports

API access

GET /api/v1/tech?name=klaviyo

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Klaviyo vs HubSpotCompare →Klaviyo vs MailchimpCompare →Klaviyo vs Constant ContactCompare →Klaviyo vs HighLevelCompare →

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