Unibox
unibox.cx ↗Shared inbox your whole team can actually run.
Unifies billing@, support@, and ops@ into one workspace, with agents that triage, draft, and close threads so your team ships instead of sorting.
Last Node is a tiny angel fund. We write early checks to founders creating AI-native tools where the agent does the real work, and we stay close, as people who have shipped the same class of product ourselves.
For two decades, the unit of leverage in software was a large team. That is changing. A capable model and a few people who know precisely where to point it can now close entire workflows: billing inboxes, deliverability, go-to-market motion, customer support. Work that once required a whole organization.
Last Node exists to back the founders seizing that shift. We commit only where AI is load-bearing: remove it and the product no longer functions. We fund durable software for real operational work, not demos, not wrappers.
Shared inbox your whole team can actually run.
Unifies billing@, support@, and ops@ into one workspace, with agents that triage, draft, and close threads so your team ships instead of sorting.
Deliverability that defends itself.
Cold email infrastructure with AI-orchestrated inbox warmup. Reputation is monitored, repaired, and reinforced continuously, so no more babysitting domains.
AI-native GTM agent platform.
Outpost, the flagship vertical, runs as an autonomous SDR, sourcing, qualifying, sequencing, and handing off only the meetings worth a human.
Everything you need for customer experience.
A single source of truth for every customer touch, from voice to ticket to transcript to NPS, so the next conversation always starts smarter than the last.
Pre-seed and seed. First or second money in. We are comfortable as the smallest check on a strong cap table.
$25k to $250k from the fund. We do not lead. We decide quickly and communicate clearly.
AI-native software where the agent does measurable work, led by founders who have lived the problem firsthand.
A partner who has been in your seat, introductions across our portfolio, and a clear answer within a week, including a no.