New startup ideas · AI and software · Horizontal AI assistants

startup idea

Subroclaim

Agents that negotiate insurer-to-insurer claim recoveries on both sides of the file.

Subroclaim runs subrogation and inter-carrier recovery as an agent service for US property and casualty insurers: the agent reads the loss file, builds the demand with liability evidence, and then negotiates directly with the other carrier's Subroclaim agent, escalating to a human adjuster only on disputed liability or amounts above a set threshold.

AI agent as a service
Enterprise
$10-100B market
Creates a new category
US first

4/5

venture judge

similar startups, last 2 years (6 all-time)

78%

of 3 nearest real companies still alive

sector

20 public grants in this sector, none matching the idea's terms

Test it before you build it

$3,000 · 6 weeks · 15 prospects

Prove for $3,000 in 6 weeks that two regional auto carriers in one trading pair will prepay $5,000 each and put a written dollar cap on delegated settlement authority.

Riskiest assumption · Subrogation directors at regional auto carriers will grant an outside agent written settlement authority below a stated dollar cap, and will prepay for a pilot rather than keep every negotiation human on their side.

1Focus group: who and where

Director of subrogation or VP of claims at a regional US auto carrier writing 100,000 to 2 million policies, whose team trades thousands of demands a year with the same handful of counterpart carriers and staffs licensed adjusters on recoveries under $3,000 a file.

where to find 15 · The National Association of Subrogation Professionals (NASP) member directory and webinars, where subrogation directors are members by title; the Arbitration Forums member carrier list, since every US auto carrier trading inter-company claims files there; the CLM Alliance's subrogation community for second contacts; NAIC state filings to rank regional auto carriers by written premium and find trading pairs in the same states.

2Sell first, build later

A 60-day pilot on one live subrogation lane between two carriers that already trade demands: 30 days shadow mode scored against adjuster outcomes, then live agent-to-agent negotiation on files under an agreed dollar cap with adjuster signoff on every settlement, founders running the settlements desk, starting within 30 days of payment.

the ask · $5,000 per carrier for the 60-day pilot, prepaid, plus a per-resolved-file fee negotiated at go-live.

a real yes · Two prepaid invoices from carriers in one trading pair plus a written authority cap signed by claims leadership is a yes; one enthusiastic carrier without its counterparty, an unpaid proof of concept, or 'start with our security questionnaire' is not.

3Small experiments

The first one attacks the riskiest assumption; each ends with a number that says whether to run the next.

1. Fifteen authority-threshold calls
$750 · 14 days
Join NASP, pull 30 regional-carrier subrogation directors from the member directory and Arbitration Forums member list, and book 15 calls with one question at the center: would you let an automated negotiator settle inter-carrier files below a dollar cap with adjuster signoff, and what is that cap. Also map which counterpart carrier they trade the most demands with.
keep going if · 8 of 15 directors name a dollar cap they would delegate with human signoff, and 5 agree to see a shadow-mode pilot
2. Closed-file shadow scoring
$500 · 14 days
Get 10 redacted closed subrogation files under NDA from the two friendliest carriers in experiment 1 and hand-build the demand package and negotiation position the agent would have produced, using the actual liability evidence in each file. Have their own adjusters score each package against what was really sent and settled.
keep going if · Adjusters mark 7 of 10 hand-built demand packages as sendable without material edits, and the modeled settlements land within 10 percent of actuals on 6 of 10
3. Paired-carrier prepaid pilot
$1,750 · 14 days
Offer the two carriers that already trade the most demands with each other a 60-day pilot: 30 days shadow mode on live files, then live negotiation on files under the cap from experiment 1 with adjuster signoff, $5,000 prepaid per carrier. Present in person to claims leadership with the experiment 2 scores; a one-hour counsel review of the pilot agreement is in the cost.
keep going if · Both carriers in one trading pair sign the pilot agreement with a written authority cap and pay $5,000 within 21 days of the offer

4Collect a deposit up front

Tesla took $1,000 refundable reservations for the Model 3 and $100 for the Cybertruck before building either: the deposit is the measurement, not the revenue.

$5,000

per prospect, refundable

how · Paid pilot invoiced up front: each carrier signs a 60-day pilot agreement stating the authority cap and escalation rules and pays a $5,000 invoice, chosen because a prepaid vendor invoice is routine for carriers at this size and forces the settlement-authority question through claims leadership and counsel now, before anything is built. set up: Stripe Invoicing ↗

what it reserves · The first live lane on the platform: their trading pair goes first, the cycle-time baseline is measured on their own files, and their per-resolved-file fee is locked for year one.

refund · Refunded in full if the pilot has not entered live negotiation within 90 days of payment.

target · 2 prepaid carriers forming one trading pair within 45 days

before taking money · Negotiating and binding claim settlements can require adjuster or TPA licensing state by state, so keep the agent in shadow mode until insurance counsel clears each pilot state.

Go: build it if

2 carriers in one trading pair each pay $5,000 and sign a written authority cap of at least $2,500 per file, with 8 of 15 directors naming a delegable cap on calls.

Kill: stop if

0 of 15 directors will name any delegable dollar cap even with adjuster signoff, or no payment after 6 weeks and offers to 4 trading-pair carriers.

5 Scripts to run itoutreach message, landing copy, deposit terms · click to open

outreach message

Your team trades thousands of subrogation demands with the same few carriers, and each file under $3,000 still costs adjuster hours to demand, counter, and close. I am building an agent that drafts the demand from the loss file and negotiates with the other carrier's agent, escalating to your adjuster on disputed liability - starting in shadow mode on closed files so you can score it first. I am choosing two carriers that already trade demands for a $5,000 prepaid 60-day pilot. Could I get 20 minutes this week?

landing page

Settle small subrogation files agent to agent; adjusters handle only disputes. $5,000 prepaid buys a 60-day pilot: 30 days shadow mode, then live files under your dollar cap with adjuster signoff. Book a scoping call with your subrogation lead and claims counsel.

deposit terms

Your $5,000 payment reserves the first live lane for your trading pair, locks your per-resolved-file fee for year one, and starts the pilot within 30 days. The pilot runs 30 days in shadow mode and 30 days live on files under the authority cap your claims leadership sets, with adjuster signoff on every settlement. The fee is refunded in full if live negotiation has not begun within 90 days of payment.

Would you run this test?

One tap. The yes-share feeds the Demand pillar of this idea's score; nobody sees who answered.

Budgets are out-of-pocket estimates for a team of one to three, US market. Size the deposit to the deal, and check the terms before taking money in a regulated line.

Scorecard

One score that balances how trendy the idea is, the demand for it and its potential for 100x, with competition measured relative to every other idea in the catalog. Recent startup trends first, government priorities second.

Idea Score, 0-100 · raw 43.0 x 1.61

Warm

competition: more crowded than 32% of ideas · headwind x0.84

+0.0

government priorities, secondary (0 matching grants)

Trend

Is the wave forming now? 2025-26 entrants vs 2023-24, rounds since 2025, the sector's live-batch direction, the 2026 trend analyst.

Entrants 2025-26 vs 2023-24 (similar companies)90
Rounds announced 2025+ in the sector0
Sector direction (live batch)0
2026 trend analyst50

Demand

Does anyone want it? YC's current RFS, companies already paid for something similar, the operator judge, founders' yes-rate in decks, readers who would run the test.

YC asks for it (current RFS: idea / sector)30
Someone already pays (similar companies, recent / all-time)50
Operator judge: real pain75

100x potential

Can it return a fund? The venture judge (double weight), market-size and moat axes, neighbours still alive, the technologist judge.

Venture judge75
Market size axis67
Moat axis100
Neighbours still alive81
Technologist judge50

Score = 100 x cbrt(Trend x Demand x 100x) x (1 - 0.5 x crowding) + government bonus (max 5), calibrated so the 95th-percentile idea scores 90 (order never changes). A geometric mean: a weak pillar cannot be papered over. Percentiles are among the 272 ideas in the catalog; the terms matched were negotiate, insurer-to-insurer, claim, recoveries, both, sides, file, subrogation.

The idea in full

What: Subroclaim runs subrogation and inter-carrier recovery as an agent service for US property and casualty insurers: the agent reads the loss file, builds the demand with liability evidence, and then negotiates directly with the other carrier's Subroclaim agent, escalating to a human adjuster only on disputed liability or amounts above a set threshold. Carriers pay a fee per resolved recovery plus a platform subscription. Subroclaim keeps a small settlements operations team for arbitration filings and state-specific exceptions, so a carrier can go live without changing its claims system.
Why now: YC's Fall 2026 Request for Startups mapped to this cluster is Multiplayer AI, and this is the version of it that has money on both sides; Patchwork, an AI powered team communication tool, died in 2024, which shows agent-to-agent value inside one company is thin while inter-company negotiation carries a settlement cheque.
Wedge: first customer and entry point: Two regional auto carriers that already exchange thousands of subrogation demands with each other: run that single lane end to end, then use the cycle-time drop to recruit the third carrier.
Path to 100x: US claims administration and recovery operations is a $10-100B cost line, and the network is literal: each carrier that joins makes automated resolution available to every carrier already on the platform, so the second-place network settles a shrinking share of files. Regulatory approval per state plus carrier-side authority limits create a slow, defensible category that resembles a clearing house more than a software vendor.
Ceiling: The top ten carriers write most of the volume, so if three of them build a shared consortium utility instead, Subroclaim is left with regional carriers and a sub-$1B outcome.
Closest real companies, as the generator saw them: Patchwork tried agent-mediated communication inside one team and is in the graveyard; Dock's multiplayer agent workspace and Gini's Slack coworker stay inside company walls. Subroclaim's agent only creates value when the counterparty is a different regulated company.
Main risk: Carriers refuse to let an outside agent bind settlement authority, keeping every negotiation human on at least one side and erasing the speed advantage.

Five judges

Each judge scores every idea in the catalog with a named rubric; the venture judge decides whether a card is shown at all (4-5 is venture-grade).

Venture investor
4/5
A literal clearing-house network where each carrier joining makes every other carrier's files settleable, paid per recovery out of a $10-100B cost line.
Bootstrapper
2/5
Carriers must grant an outside agent settlement authority state by state, and a settlements ops team burns cash while they decide.
Operator
4/5
Subrogation recovery is a $10-100B cost line carriers already staff, and fee per resolved recovery matches money they pay adjusters today.
Technologist
3/5
Agent-to-agent subrogation negotiation is mostly LLM plus a settlements ops team; the defensibility is carrier network density, not engineering depth.
Risk
2/5
Value needs the counterparty carrier on the platform, and three of the top ten carriers building a consortium utility ends it.
trends
3/5
Agent-to-agent negotiation with a settlement cheque attached is the paying version of the Multiplayer AI RFS, though state-by-state carrier approval was equally slow in 2023.

Similar startups in the directory

Companies whose pitch matches most of the idea's terms (negotiate, insurer-to-insurer, claim, recoveries, both, sides, file, subrogation): 6 all-time, 2 from the last two years. Same matching as Idea Check.

Roteyc W27 · 2027 · Vertical AI agentsalive
AI-native insurance department for auto body shops
Opereitseedcamp Seedcamp 2026 · 2026 · Vertical AI agentsalive
AI operating layer for transportation spend
Tiriel AIyc S21 · 2021 · Vertical AI agentsalive
The AI workforce for freight dispatch
Precedentplugandplay · Fintechalive
Precedent helps to improve communication between attorneys and insurance carriers.
Gigaforceplugandplay · Fintechalive
Provider of a SaaS-based, claims platform expediting subrogation, recovery, & salvage processing for insurance.
Ansel Health, Inc.plugandplay · Fintechacquired
Ansel Health is a modern supplemental health insurance company that provides personalized financial support to help people on their way to recovery.

Run this as an Idea Check →

The generator's reference companies

Real companies the model named as closest when it wrote the card, with their fate. A check mark is a company the radar could verify in its directory.

Public money in this direction

US federal grants, SBIR/STTR awards and open opportunities from the radar's public-money feed, matched to the idea's terms; the sector totals give the context.

grants and programs matching the idea

startup-relevant grants in Horizontal AI assistants

$72M

awarded in the sector, tracked

opportunities open now in the sector

All public money by sector →

Market signal

What the radar sees in Horizontal AI assistants: new companies by cohort year, the forming YC batch, and outcomes since the February snapshot.

Horizontal AI assistants · 33 → 78 → 85 → 58 → 41 new companies 2022 → 2026 · 89% aliveYC F26 live: 6 in this cluster, 5% of the batch (was 3% in S26)Since February, of 127 YC companies here: 4 acquired, 3 shut down, 31 rewrote their pitch

Horizontal AI assistants: companies, trend and grants →

Design attributes

The card is one cell of a designed set: every axis below was chosen before the text was written, and the text had to realize it.

Buyer: Enterprise
Business model: AI agent as a service
Path to 100x: Creates a new category
Market size: $10-100B market
Capital intensity: Capital-medium (ops, field teams)
Speed to revenue: Revenue in 1-3 years
Technical depth: Real engineering
Go-to-market: Founder-led sales
Moat: Network effects
Geography: US first
Regulation: Heavily regulated
Vibe: Boring business