Contacts are free now. Timing isn't.
Every big sending tool now bundles hundreds of millions of contacts and an unlimited send button. That solved the wrong problem. Founders doing their own outbound don't lack people to email — they lack a reason to email them this week.
We built LumenGrow to answer two questions: which account, and when? Then to act on the answer in the same place, from your own mailbox.
What we believe about outbound.
Timing beats volume.
Fifty accounts watched closely beat fifty thousand contacts blasted. Write when there’s a reason to — and say what the reason is.
One tool, not five.
Watchlist, signals, rules, sequences and your mailboxes belong together. A founder choosing their first outbound tool shouldn’t need a second one.
Show the receipts.
Every signal links to its source and the moment we checked. On a quiet week we tell you what we looked at instead of inventing something.
How it's built.
Observers, not scrapes
Each watched company is checked on a schedule and compared with its last snapshot. A signal is a difference between two real observations — never a stored fact re-announced.
Self-hosted AI
Research and personalisation run on our own infrastructure by default, so prospect data and message content don’t go to an outside AI provider.
Your mailboxes
Email leaves from mailboxes you connect, not a shared pool. LumenGrow can warm a cold mailbox before it sends, and suppresses bounces and opt-outs automatically.
Talk to the people building it.
Write to support@lumengrow.co — a person reads every one.