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current thesis · ai modernization, growth-stage healthcare · in market

Hypotheses, shipped.

The lab between strategy and software. We work with midsize and fast-growing companies to generate the right AI hypothesis and ship the answer that proves or kills it.

Book 30 minutes →See recent ships ↗
this page is running a test.you are in variant a — the mission line. flip to b and watch us ship something.
WHAT WE SELL
four ways in · every one ends in something shipped
01 · THESIS SPRINT

Where AI actually pays

Three weeks inside the business. A ranked set of AI hypotheses, the test design for each, and a costed build plan for the one that clears the bar.

3 weeks · readout + build plan
02 · BUILD POD

Product in market in 90 days

An embedded pod — product, design, engineering, evals. It ships to your production stack, not a prototype that dies at the demo.

90 days · shipped to prod
03 · OPERATOR ON LOAN

Product leadership, borrowed

A senior partner from our bench sits inside the company as acting product leader — hiring, roadmap, delivery mechanisms — until your permanent team exists.

2–6 months · fractional or full
04 · AI DILIGENCE

A hard read before you commit

Whether an AI claim — yours, a vendor's, or an acquisition target's — survives contact with the workflow, the data, and the safety review.

2 weeks · written readout
SHIPPED
ten stories · building since 2005 · every result measured

Twenty years of work, one story at a time: a hypothesis, a test, a bar to clear, and what actually shipped. Open any case for the business argument and what we built.

story 01 of 10 · amazon · complex deliveries, high density
AMAZON · LAST MILE, GEOSPATIAL & ML · 2020–2022

Tokyo Doesn't Have Parking

Tokyo and New York break routing assumptions that work everywhere else. There is nowhere to park, the last hundred feet are on foot or by bike, and a single bad stop sequence costs the driver twenty minutes. The hypothesis was that density is not a penalty to absorb — it is a modelling problem with a specific answer.

We rebuilt route construction for those geographies around parking reality, alternative transport modes, and walking sequence. Route volume rose 10–15% in exactly the markets where a lift is hardest to get.

target  absorb density instead of routing around it
result shipped · 10–15% route volume lift in the densest metros
Read the case ↗
AMAZON · GRADUATED NAVIGATION · PATENTED

Delivering Where the Map Doesn't Exist

Most of the world does not have reliable address data. The patented approach — Alex is a named inventor — grades the driver experience to the fidelity of the GIS underneath it: where the map is good, turn-by-turn; where it is thin, the interface degrades gracefully instead of confidently lying.

Every completed delivery then writes back into a historical map, so the next route through that block is better than the last. Compounding accuracy, from the fleet itself.

test   developing regions · saudi arabia, india · no reliable address data
result shipped · +20% volume in developing regions · patent granted
case in writing
SIGNIFY HEALTH · MYSIGNIFY · 2023–2025

Building the Tool Clinicians Actually Wanted

A mobile clinical workforce was being managed with tools built for schedulers, not clinicians. MySignify is a bespoke workforce application built around the provider's day — efficiency and personal safety treated as first-order product requirements rather than compliance checkboxes.

Provider sentiment rose 40% and attrition fell by half. It also carried the operational weight of transitioning the workforce to W-2, which is the kind of change that usually costs you your best people.

target  improve retention in a mobile clinical workforce
result shipped · +40% provider sentiment · −50% attrition · w2 transition supported
case in writing
SIGNIFY HEALTH · ROUTE LOGIC · 2023–2025

From Thirty Minutes to Under Ten

In-home care economics are drive time. Clinicians were averaging close to 30 minutes between visits, and the usual fix — hire more clinicians — makes the margin worse.

Route Logic attacks both sides. On the demand side, ML shapes the schedule itself: patients on the same block are called for complementary windows rather than whenever they ask. On the fulfilment side, best-in-class routing sequences what remains. Average drive time fell to under ten minutes.

test   demand-side scheduling + ml routing · in-home visits
result shipped · ~30 min → under 10 min average drive time
case in writing
CVS HEALTH · HEALTHCARE DELIVERY · 2022–2026

Three Care Models, One AI Playbook

MinuteClinic, Oak Street Health and Signify Health are three distinct business models with three different risk profiles. Rather than pick one flagship AI feature, we walked the entire clinician journey and asked where machine assistance actually removes work: ambient listening in the visit, patient scheduling, inbound fax handling and routing, care coordination, decision support.

Each of those is unglamorous on its own. Together they are the difference between clinicians documenting after hours and clinicians going home. 10M+ patients sit downstream of it.

test   full-journey ai enablement · three business models
result shipped · 10m+ patients · efficiency gains across every step
case in writing
A CANADIAN SCHEDULE I BANK · CONFIDENTIAL · 2017

The Underwriter's Copilot

The tempting version of this project replaces the underwriter. The version that works splits the population. We built an adjudication engine that risk-tiers mortgage applications with ML, automates the approvals that are genuinely routine, and hands the remainder to a human.

Eighty percent cleared automatically. For the hard 20%, the engine produces guided troubleshooting steps rather than a rejection — so the adjudication team spends its judgment where judgment is the scarce input. Productivity rose over 40% and end-to-end application time fell 60%.

target  20% adjudication productivity lift
result shipped · 80% of approvals automated · +40% productivity · −60% cycle time
case in writing
TACO BELL / YUM BRANDS · RESTAURANT INNOVATION · 2019–2020

A technology-first kitchen system

A 50-person team, a roadmap targeting a 15% reduction in labor cost, and a genuinely unglamorous starting point: the back-of-house system nobody outside the restaurant ever sees. We rebuilt it around the crew's actual shift, not the org's process diagram.

It generated roughly $50M in operational savings and measurably improved employee experience. The same team launched the Cantinas restaurant concept and demoed two working prototypes at the annual franchise meeting.

target  15% labor cost reduction
result shipped · ~$50m operational savings · new concept launched
case in writing
A US REGIONAL BANK · CONFIDENTIAL · 2015–2017

A Digital Bank Built Inside a Brick-and-Mortar One

An established brick-and-mortar bank wanted a digital offering, which usually means a worse version of the branch on a phone. We built a native digital bank instead — a separate product with its own account opening, its own service model, and none of the legacy assumptions.

Customer reviews were strong enough to become the marketing, and deposit volume grew 20%.

test   native digital bank as an offshoot brand
result shipped · +20% deposit volume · rave customer reviews
case in writing
A NATIONAL FOOD & FACILITIES OPERATOR · CONFIDENTIAL · 2018

Pricing, Rebuilt Location by Location

Pricing was set centrally and applied uniformly, which means every location was either leaving money on the table or pricing itself out of its own market. We built an ML pricing model that produces location-specific guidance across thousands of items.

Revenue rose more than 10%. The model was the deliverable; getting it into the commercial team's workflow was the work.

test   ml pricing guidance · thousands of items · location-level
result shipped · +10% revenue
case in writing
BITMOJI · ADVISORY TO FOUNDER · THROUGH 2016

Consumer personalization at hundreds of millions of users

Advisory to the founding CEO from early product through hypergrowth: core product strategy, consumer growth, and the personalization capabilities that drove viral adoption across the major messaging platforms.

We supported the positioning and deal process that ended in the Snap acquisition in March 2016. Bitmoji became one of Snapchat's most-used features.

test   personalization as a growth loop
result shipped · hundreds of millions of users · $100m+ acquisition
case in writing
THE CREW
full team ↗
member 01 of 2 · alex blackstock · founder
Alex Blackstock
alex blackstock · seattle / new york
20+
years shipping
$1B+
measurable impact
10M+
patients served
100+
person org rebuilt
01FOUNDER & MANAGING PARTNER

Alex
Blackstock.

Alex Blackstock built AB Venture Labs around a narrow question: where does AI actually move the P&L, and where is it theater? Twenty years of shipping products at scale have made him good at telling the difference — and unsentimental about the answer.

Most recently Chief Product Officer of CVS Healthcare Delivery, owning digital product across Signify Health, Oak Street Health and MinuteClinic. Before CVS, he led product for machine learning and geospatial systems at Amazon, including the routing intelligence behind last-mile delivery worldwide. He started at McKinsey, and for over a decade advised the founding team behind Bitmoji through its acquisition by Snap.

read the full bio ↗
seat 02 · unfilled
02OPEN SEAT

One partner,
not a pyramid.

The next name on this page will have shipped something at scale and be able to say what it cost. Until then the seat stays visibly empty — we would rather show the gap than pad the roster.

Every engagement is run by someone who has built the thing before, not someone learning on your budget.

name · role · linkedin · github
bio, stats and career lines land here when the seat is filled
tell us what you shipped ↗
MEMOS
three memos · in writing right now
2026-07 · memo
Most AI diligence measures the wrong thing
Model quality is table stakes. The variance sits in workflow adoption — and nobody diligences that.
in writing right now
2026-06 · memo
Retire the hypothesis on schedule
A test with no kill date is a roadmap item. Here is the mechanism we use to end them.
in writing right now
2026-05 · memo
Assist the judgment, automate the assembly
The mortgage adjudication result generalizes further than anyone expects. Where it holds, and where it breaks.
in writing right now

Bring us the hypothesis you can't get anyone to test.

Thirty minutes, no deck. You describe the situation; we tell you whether there is a test worth running and what it would cost.

Book 30 minutes →hello@abventurelabs.com
ab/Venture Labs
est. 2026 · seattle, wa · hello@abventurelabs.com
Hypotheses, shipped.