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Home/Lead generation/Competitor customer lists
Switch campaigns · rival install bases

Every customer of your competitor, in one list

Pick any rival technology. See every store and website running it, with the size, country and vertical of each one. Choose who to approach, when, and with which offer.

0Rivals searchable
0Sites covered
0Fields per row
0Rows per report
Rival board · one categoryreviews apps
Rival Alargest base
Rival Bstrong in fashion
Rival Cyoung stores
Rival userCountryRivalAge
Activewear labelfashion · 380 itemsUSRival A7y
Skincare brandbeauty · 90 itemsAURival B5y
Home fragrance shophome · 210 itemsUKRival A9y
switch list · ready to segmentlookup basics →
Why rival users

The warmest cold list you can build

A site running a competitor has already decided it needs your category. It has a budget line for it. Your job is only to show a better option.

The need is proven

No need to explain why the category matters. They already pay for it.

  • No education phase
  • Shorter discovery calls

The budget exists

Money is already flowing to your category. You are asking to redirect it, not create it.

  • Easier approval
  • Price comparison is concrete

The comparison is clear

You know exactly what they use, so your message can name a specific difference.

  • Feature gaps
  • Pricing or support differences
Rival dossier

Eight facts to collect on each rival before you campaign

Half of these come from the lookup itself. The rest come from an hour on the rival's own website and pricing page.

01

Install base size

The row count from the lookup.

02

Strongest verticals

Where most of its users sit.

03

Home countries

Where it is local and where it is not.

04

User age profile

Winning new stores or living on old ones.

05

Pricing tiers

Where its price jumps and who it squeezes.

06

Known limits

The complaints its users repeat in public.

07

Common pairings

Tools its users also run, for integration angles.

08

Recent news

Price changes, acquisitions, outages, new features.

Step one

Map the competitive landscape first

Before you build a single list, read each rival's install base as a market report. It tells you where to fight and where to avoid.

List your rivals

Name the three to six products buyers compare you with most often.

Count each base

Look up each rival. The row count shows its reach in the database.

Split by vertical

See which categories each rival dominates and which it barely touches.

Split by age

A rival winning young domains is gaining. One stuck on old domains is aging.

What you seeWhat it usually meansWhat to do
Rival strong in your best verticalHead-on competitionLead with a sharp, specific difference
Rival strong in a vertical you ignoreAn adjacent market they opened for youTest a small campaign there
Rival base skews to old domainsLegacy users, possibly frustratedPitch modernization and migration help
Rival base skews to young domainsRival is winning new storesStudy its onboarding and pricing
Rival base concentrated in one countryLocal strength, weaker elsewhereAttack outside its home market
Rival base skews to small catalogsCheap entry tierTarget its users that have grown
Segments

Split every rival list into five segments

One rival list hides several very different buyers. Treat them differently and replies go up.

01

Outgrown

Large catalogs or high traffic still on a starter-tier rival.

  • Filter: products 1,000+
  • Offer: capability and scale
02

Overpaying

Small stores on a rival known for enterprise pricing.

  • Filter: products under 100
  • Offer: right-sized pricing
03

Wrong vertical

Stores in categories where the rival has no special features.

  • Filter: your strongest category
  • Offer: vertical-specific features
04

Wrong region

Stores outside the rival's home market and language.

  • Filter: country and language
  • Offer: local support, local payments
05

Long-time users

Old domains that installed the rival years ago.

  • Filter: domain age 8+ years
  • Offer: modern features, easy move
06

Leave alone

Young stores that just installed the rival.

  • Filter: domain age under 1 year
  • Action: revisit in six months
Timing

Switch campaigns live and die on timing

Most rival users are happy enough most of the time. Reach them in the short windows when they are not.

  • Rival price increase. Run the lookup the week it is announced.
  • Rival outage or bad press. Be helpful, not gloating.
  • Rival acquired. Users worry about roadmap and support.
  • Rival drops a feature. Target users who relied on it.
  • Annual planning season. Budgets and tools get reviewed.
  • Before peak season. Stores fix their stack ahead of their busiest weeks.

A trigger-based routine

MonitorRival announcements and pricing pages
TriggerPrice rise, outage, acquisition
PullRival users, segmented by size
SendWithin days, not weeks
Right list, right week
Offers

Switch offers that lower the cost of moving

The biggest barrier is not your price, it is the effort of changing. Remove the effort and the decision gets easy. Pick one or two of these offers per segment rather than stacking all six into one email.

Free migration

Move their data, settings and history for them.

Say exactly what moves and how long it takes.

Contract overlap

Cover the months left on the rival contract.

Removes the "we are locked in" objection.

Side-by-side test

Run both tools on part of the traffic.

Let results make the case for you.

Named onboarding

A real person who handles the switch.

Small stores value this more than discounts.

Price lock

Guarantee today's price for a year or two.

Strong after a rival price rise.

Comparison guide

A short, fair page on differences.

Link it from every switch email.

Messages

How to write to a competitor's customer

Respect their choice, name one difference, make switching sound small. The structure below works for almost every category, from reviews apps to payment providers.

Opening
Acknowledge the tool. "You run [rival] across [store name]'s 300 products."
Relevance
Name a context. "Stores in [category] at your size often hit [specific limit]."
Difference
One clear contrast. "[Your product] handles that with [specific feature]."
Ease
Make it small. "We move your data for you, usually in a day."
Ask
Low commitment. "Worth a 15-minute look next week?"

Do

  • Mention their category and size
  • Be specific about one difference
  • Offer to handle the migration
  • Keep it under 100 words

Avoid

  • Attacking the rival by name
  • Long feature lists
  • Claims you cannot back up
  • Pushing for a call in the first line
Drafts in one click

On both plans, the AI cold email generator writes a first version for any row.

Two motions

Switch selling and add-on selling, side by side

Rival users are one source. Sites with an empty slot are the other. Strong teams run both, each with its own message, owner and success measure, and compare the two every quarter.

Competitor usersRecommender picks
WhoSites on a rival productSites with no tool in your slot, whose stack fits yours
Pitch"Switch for a clear benefit""Add the tool sites like yours add next"
Main objectionEffort of switchingNeed for the category
Best timingRival price rises and renewalsPeak-season prep, growth moments
Competition for the listHigh, every rival mines itLow
Where to find itTechnology lookupAI recommender
Objections

Eight things rival users say, and how to answer

Switch conversations follow a script. These are the objections you will hear most, with answers that respect the buyer.

"We are happy with what we have."

Agree it works. Ask about one specific limit stores their size often hit, and leave it there.

"Switching is too much work."

Describe the migration in concrete steps and hours. Offer to do it for them.

"We are in a contract."

Ask when it ends and set a reminder. Or offer to cover the overlap.

"Your tool is more expensive."

Compare total cost, including add-ons and time spent. If you are still pricier, name the outcome that justifies it.

"We tried something like you before."

Ask what went wrong. Often it was setup, not the product category.

"Our agency chose it."

Offer a joint call with the agency. Agencies like partners that make them look good.

"Now is not a good time."

Ask when is. Before or after peak season is usually the honest answer.

"Send me some information."

Send one short comparison page and one customer example in their category. Nothing more.

A 90-day program

Run a switch program for one quarter

A simple plan that turns rival lists into a repeatable channel rather than a one-off blast.

WeeksFocusDeliverable
1 to 2Map all rivals by vertical, country and domain ageA one-page rival map
3 to 4Build the comparison page and migration offerAssets every email can link to
5 to 6First campaign on the strongest segment of the weakest rivalFirst replies and objections log
7 to 8Second rival, second segment, refined messagingComparable reply rates
9 to 10Refresh all lookups, work new installs separatelyFresh rows and a timing view
11 to 12Review win rates by rival and segment, cut the weak onesA plan for next quarter
Measure it

Four numbers to track on every switch campaign

Switch campaigns are easy to measure because the list is so well defined. Every row has a known rival, a known segment and a known send date, so results compare cleanly from one month to the next.

Reply rateBy segment
MeetingsPer 100 contacts
Win rateBy rival
Time to switchFrom yes to live

Compare rivals

Some rivals' users switch far more easily than others. Shift effort to those, and revisit the hard ones only when a trigger appears.

Compare segments

Outgrown and overpaying segments usually beat the rest. Check your own data.

Compare offers

Test migration help against discounts. Effort reduction often wins.

Who uses competitor lists

Not just for SaaS vendors

Anyone who sells an alternative to a known product can use the same lookup. These six groups use it most, and each one leans on a different filter to find its best rows.

SaaS and app vendors

The classic use: win users from rival apps and platforms.

  • Segment by size and vertical
  • Time around rival changes

Migration agencies

Users of an aging platform need someone to move them.

  • Old domains on legacy tools
  • Large catalogs that need care

Hosting and infrastructure

Sites on a rival server, CDN or host.

  • Filter by popularity tier
  • Pitch speed and cost

Payments and financing

Stores on a rival checkout or pay-later option.

  • Filter by average price
  • Pitch approval rates and fees

Ad tech

Publishers on a rival ad network.

  • Filter by category
  • Pitch yield and fill

Implementation partners

Agencies certified on your product, hunting users of the alternative.

  • Joint campaigns with the vendor
  • Country filters for local partners
Fair play

Competing hard, and cleanly

Switch campaigns work best when they are fair. Four simple rules keep your reputation intact while you win accounts.

Be accurate

Only claim differences you can show. A single wrong claim undoes the whole message and travels fast in merchant communities.

Be respectful

Their choice was reasonable when they made it. Criticizing it criticizes them, which is a poor start to any relationship.

Be compliant

Follow outreach and privacy laws in each country. Include a clear way to opt out of further messages in every email.

Be brief

Respect their time and they respect your email. Four sentences and one question is enough for a first touch.

FAQ

Competitor customer list questions

01How do I get a list of my competitor's customers?

Type the competitor's product into the technology lookup. Every store and website running it appears in the table.

02Which competitors can I look up?

Any of the 4,000+ technologies we track, from store apps and marketing tools to payments, analytics and hosting.

03Can I see how big each rival is?

The row count of each lookup is the rival's reach in our database. Compare several rivals by vertical, country and domain age.

04Can I filter rival users by size?

Yes. Use product count, average price, popularity rank and authority.

05Do I get contact details?

Store records include public contact information where available, and it is part of the export.

06Which plan includes competitor lookups?

Both plans. Reports allow 1,000 rows on Advanced and 10,000 on Enterprise.

07How do I know when a rival user is ready to switch?

Watch for rival price changes, outages and acquisitions. Combine that with segments like outgrown or overpaying users.

08Should I only target competitor users?

No. Pair it with the AI recommender, which finds sites with no tool in your slot yet.

09Can I see what else a rival user runs?

Yes. Expand any row for its full stack. Integrations you share are great talking points.

10Is it legal to contact a competitor's customers?

Competing for customers is normal business. Follow the email, privacy and fair-competition rules in your country and the recipient's.

11How often should I refresh rival lists?

Monthly, and immediately after any rival news. New rows are often the most recent installs.

12Can I track whether users are leaving a rival?

Compare exports over time. Domains that disappear from a rival's list have changed their stack.

13What if two rivals are used together on one site?

That happens during migrations. Sites running two tools in the same slot are often mid-switch and open to a third option.

14Can agencies run this for clients?

Yes. Many agencies build rival lists for each client's product. See the agency page.

15Which rival should I start with?

Start with the rival whose users most often look like your best customers, and whose weakness matches your strength. It is rarely the biggest rival.

16How many rows should a first switch campaign have?

A few hundred well-segmented rows is plenty. It is enough to learn which message works without burning the whole list.

17Can I use rival lists for advertising?

Yes. Export domains for account-based ads, and show comparison content to rival users while your emails go out.

18What if a rival user replies that they are happy?

Thank them and ask if you may check back in six months. Happy users today become open users after the next rival price change or outage.

Log the date and the reason they gave, and re-run your lookup before you follow up.

19Does every lookup count as a search?

Yes. Each lookup and each page of results counts toward your monthly searches, 10,000 on Advanced and 50,000 on Enterprise.

Your competitor built your next list for you

Look up any rival, segment its users, and send the right offer at the right time. From $999 per year.