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Agents2026-07-26 · source-backed
Sierra announced July 23 that it acquired Takeoff and is combining teams behind Horizon, a runtime for long-running enterprise agents (CMSWire). Takeoff built a long-horizon runtime for lending and healthcare and reportedly went $0 to nearly eight figures ARR in about seven months with three people, pricing on revenue-aligned outcomes rather than inference APIs. Sierra closed a $950M Series E at $15B in May and crossed $150M ARR. This is the outcome-pricing thesis being bought rather than built.
Each link below shares sources, entities, or timing with this story.
Sierra competes with Zendesk / Shared entities / Same source domain / Earlier coverage
Linked by a graph relationship (Sierra competes with Zendesk); both cover ARR, Sierra; reported by the same outlet (cmswire.com).
Sierra competes with Zendesk / Shared entity: Sierra / Shared topic / Earlier coverage
Linked by a graph relationship (Sierra competes with Zendesk); both cover Sierra; overlapping topics (agent, closed, sierra).
Sierra competes with Zendesk / Shared entity: ARR / Earlier coverage
Linked by a graph relationship (Sierra competes with Zendesk); both cover ARR; earlier ARR coverage from 2026-04-18.
Linked by a graph relationship (Sierra competes with Zendesk); both cover ARR; earlier ARR coverage from 2026-04-05.
Sierra competes with Zendesk / Shared entity: Sierra / Earlier coverage
Linked by a graph relationship (Sierra competes with Zendesk); both cover Sierra; earlier Sierra coverage from 2026-04-03.
Sierra competes with Intercom / Shared entities / Shared topic / Earlier coverage
Linked by a graph relationship (Sierra competes with Intercom); both cover ARR, Sierra; overlapping topics (agent, crossed).
Shared entities / Shared topic / Earlier coverage / Tension
Both cover APIs, July; overlapping topics (agent, apis); earlier APIs coverage from 2026-07-21.
Sierra competes with Zendesk / Shared entity: July / Earlier coverage
Linked by a graph relationship (Sierra competes with Zendesk); both cover July; earlier July coverage from 2026-07-09.