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Developer tools

Bolster

We are building the Amazon for construction where contractors can give their customers an interactive shopping experience, turning the estimate into a point-of-sale, for the first time. It is a marketplace for general contractors, subcontractors, retailers and consumers, powered by a database of over 114,000 real items.

sources
1
Evidence entries preserved.
affiliations
1
Y Combinator
competitors
6
Mapped from High Signal graph features.
status
generated
D1 lookup
last updated
2026-07-15
16:41 UTC
source evidence
Why this company exists here

Y Combinator

yc-company-directory #1920

We are building the Amazon for construction where contractors can give their customers an interactive shopping experience, turning the estimate into a point-of-sale, for the first time. It is a marketplace for general contractors, subcontractors, retailers and consumers, powered by a database of over 114,000 real items.

source
generated read
High Signal interpretation

Bolster is classified as Developer tools from source descriptions and fund-directory context. Similar companies below are ranked from offline product facets and meaningful description overlap; category and source affiliation can only strengthen an existing product match. For lookup-created rows, the profile starts as pending enrichment until deeper source collection runs.

offline extraction
Product facets
consumersAmazoncustomersretailersconstructioncontractors
mapping method
Similarity graph

Local clusters rerank extracted product concepts and description terms. The generated graph remains the fallback for sparse descriptions: offline reciprocal product-similarity graph: extracted concepts + description terms + bounded category/affiliation boosts. Minimum fallback score: 0; max competitors: 6.

discovery cluster

Companies similar to Bolster

Developer tools · 6 peers

A deterministic local cluster built from offline product facets and meaningful description terms. Category and selected-institution affiliation provide bounded tie-breaks. Open any peer to continue exploring its cluster.

DigiBuild

match 80

Our platform fixes construction's broken supply chain. 70% of construction projects finish late or over budget; procuring and managing building materials is the number 1 reason why. We use LLMs to buy and manage building materials for large construction companies. With DigiBuild, construction contractors can find, order, track and manage their materials from the supplier to the job site. We help customers save money, staff time, and improve construction project schedules. We work with the top re

shared extracted concepts: customers, construction; shared product terms: construction, contractor, customer, time; shared product theme: sales and marketing; shared affiliation: Y Combinator

flexEngage

match 72

flexEngage helps retailers personalize post-purchase communications, like receipts, to better engage their most committed customers and drive additional sales. Amazon is destroying traditional retailers with their data and software because most retailers can't afford to build it on their own. So instead, retailers resort to wasting billions of dollars on ineffective marketing like Facebook ads to try and compete, while ignoring their most effective marketing channel, post-purchase communications

shared extracted concepts: amazon, retailers; shared product terms: amazon, customer, sale, retailer; shared product theme: sales and marketing; shared affiliation: Y Combinator

Envoi Technologies

match 63

Envoi facilitates retailers looking to meet consumer demand for same-day delivery. They circumvent the traditional courier model so that you can service your customers faster, better, and with more visibility.

shared extracted concepts: customers, retailers; shared product terms: customer, retailer, consumer; shared product theme: sales and marketing

Reebee

match 60

Reebee is the best way to browse and distribute flyers. The reebee mobile application makes it easy for customers to browse and discover local flyers, stay organized with an integrated shopping list, search products and much more. Available for free in Canada on the Apple App Store, Google Play, and BlackBerry World. Reebee specializes in targeted flyer distribution, engaging the consumer audience through a rich mobile experience. Digital distribution not only fills in the voids of physical dist

shared extracted concepts: customers; shared product terms: customer, shopp, experience, consumer; shared product theme: sales and marketing; shared affiliation: Y Combinator

Finosu

match 60

Hi - Mark and Gab here! We met while working at Alt, a marketplace for collectibles, where we built a $200 million specialty finance business line. At Alt, we faced the complex challenges that come with servicing consumer loans. We spent countless hours and resources developing internal tools to manage loan payments, communicate with borrowers, and keep track of loan performance—all while ensuring a positive experience for our customers. However, after dealing with the headaches of manual data e

shared extracted concepts: customers; shared product terms: customer, experience, marketplace, consumer; shared product theme: sales and marketing; shared affiliation: Y Combinator

Polymorph

match 57

Polymorph is building the future of the consumer internet: one that adapts to each user and optimizes for delightful experiences by building agents that constantly run thousands of experiments that scale our customers' product ideas and brand. Team has extensive startup, AI, and math backgrounds: - founding engineer at a unicorn - ML infrastructure @ Scale AI (inference), AWS Bedrock (fine-tuning) - ads engineering @ Meta & Twitch - IMO & IOI medalists

shared extracted concepts: customers; shared product terms: customer, experience, consumer; shared product theme: developer infrastructure, sales and marketing; shared affiliation: Y Combinator