What Is TAM Index?
A TAM index is a complete, indexed map of a company's total addressable market (TAM), not a thin filtered list. Instead of pulling a one-off list, a TAM index holds the whole market so the best accounts can be worked in cold campaigns while the rest stay indexed and watched for buying signals.
TAM Index vs. a Filtered List
A filtered list is a snapshot: you set filters, export a few thousand rows, and work them until they are spent. A TAM index is a living map of your entire addressable market that keeps growing and stays watchable.
| Filtered list | TAM index | |
|---|---|---|
| Coverage | A thin slice | The whole market |
| Freshness | Stale once exported | Continuously maintained |
| Reuse | Spent after one campaign | Indexed for ongoing signal watching |
Why It Matters
Most of your market is not in-market today, but some of it will be next month. A TAM index means you do not lose those accounts: they stay indexed so a radar can catch them the moment they show intent.
How OutreachPilot Builds Your TAM Index
OutreachPilot reads your website, builds a deep ICP, and maps your entire addressable market into a TAM Index. The best of it goes straight to cold campaigns; the rest is watched by the TAM Radar.
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Start Free TrialRelated Terms
TAM Radar
A TAM radar is a system that continuously watches a company's total addressable market for buying signals across public channels such as LinkedIn, X, and Reddit. When a real signal appears, the radar triggers outreach, so messages are sent because there is a reason, not because it is a scheduled send day.
Signal-Led Outreach
Signal-led outreach is a B2B prospecting approach where every message is triggered by a real buying signal or a genuinely strong match, rather than sent on a fixed schedule to a static list. The result is a few relevant conversations with in-market buyers instead of high-volume outreach to people who are not ready.
Buying Signal
A buying signal is an observable action or event that suggests a person or company may be in-market for a product or service right now. In B2B outbound, buying signals are used to time outreach so it lands when a prospect is most likely to respond.
Done-For-You Outreach
Done-for-you (DFY) outreach is a service model where a provider runs a client's entire outbound program end to end, including data, copy, sending infrastructure, multi-channel sequencing, inbox monitoring, and meeting booking. The client approves targeting and copy, responds to booked leads, and shows up to the calls.