Funding Shackleton Raised $5M and Called It an Agentic Operating System. Battery Ventures Has Now Backed Two of Those. A New York company founded by three people who previously ran a general contractor left stealth on 4 November with a $5m seed led by Battery Ventures, which led Miter's $40m Series B five weeks earlier. The release names Red Lobster, Dog Haus and Pepper Lunch as customers and gives no valuation or total raised. The agents draft, chase and flag; a person still approves. Hugo Pegley · Nov 4, 2026
