Feederline

The grid is a software problem now.

Feederline writes pre-seed and seed checks for founders building the software that plans, balances and repairs the electric grid.

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Thesis

Three bets on the grid.

Interconnection is the bottleneck.

New solar, wind and storage wait years for a utility to study them. Software that runs those studies faster moves the whole line.

The local grid now runs both ways.

Rooftop solar, batteries and chargers push power back onto lines built for one direction. Utilities need tools made for that.

Utilities buy from people who’ve worked inside one.

Procurement takes patience and a pilot that proves itself. We back founders who know how that works, and we help them through it.

Companies

What our founders are building.

QueuewrightInterconnection studies that take days to run, for developers and the utilities reviewing them.Seed · 2025
Reverse FlowPlanning tools for feeders where rooftop solar sends power back toward the substation.Pre-seed · 2025
OhmsteadOutage prediction for rural electric co-ops, from weather, vegetation and the age of each line.Seed · 2024
CrewtableScheduling for line crews after a storm, so the worst outages are reached soonest.Pre-seed · 2024

Selected companies. Not every investment, and nothing here describes returns.

Team

Two partners. Both have run part of a grid.

Dana Ruiz

Partner

Nine years in distribution planning at a Midwest utility, where she ran the team that studied new solar and storage requests. Then product lead at a grid-software company. She leads on utility pilots and procurement.

Theo Marsh

Partner

An electrical engineer who built outage software for co-ops, then founded a company in the same field. An angel investor in grid software since. He leads on technical diligence and early hiring.

Founders

What happens after you send a deck.

Send us a few lines and a deck
  1. Week 1A partner reads it and replies, yes or no, with a reason.
  2. Week 2A call with both partners. We ask about the utility you want as a customer, not your slides.
  3. Week 3Diligence: two calls with people who’d buy what you’re building, arranged by us.
  4. AfterIntroductions to utility buyers, help scoping a paid pilot, and a partner who answers the phone.

For investors

Fund materials are shared privately, as the firm’s counsel directs.

This site describes what the firm does. It is not an offer to sell, or a solicitation of an offer to buy, any interest in a fund.