Companies

FlowManual

flowmanual.com

FlowManual provides AI-powered bidding, purchasing, and document analysis software for construction contractors.

HQSan Francisco, California, United States
Employees1-50
Jobs checked 16h ago
AI / MLAI Agent / AutomationB2B SaaS

About

FlowManual builds an AI-powered bidding and purchasing platform for general, specialty, and MEP construction contractors. Its software automates pre-construction buying and analyzes project documents to help contractors identify scope gaps, compare bids, track vendor pricing, and win or deliver more work.

Market

FlowManual competes in construction preconstruction, bid-management, procurement, and contract/document-intelligence software, positioning itself as an AI back-office platform for general and specialty contractors rather than as a generic workflow tool. Its differentiation is an integrated document-centric workflow spanning specifications, bids, contracts, buyouts, invoices, takeoffs, and purchasing, with page-level traceability and dollar-impact analysis. SmartBid, BuildingConnected, and ConstructConnect primarily represent bid-management competition, while Document Crunch and LegalOn overlap more directly on construction contract and document review.

Target Customers

FlowManual targets general and specialty construction contractors, including MEP contractors, with a focus on estimators, preconstruction teams, purchasing/procurement staff, and construction back-office personnel. Its pricing and positioning indicate service for both solo estimators and teams handling significant project volume.

At a Glance

Problem

FlowManual addresses the document-heavy, error-prone back office of construction, particularly the work surrounding bidding, subcontractor buyout, contract review, and invoice checking. Contractors often rely on highlighters, spreadsheets, and late nights to catch scope changes, exclusions, deadlines, and price discrepancies. The economics are painful: a missed scope addition between bid and contract can cost $5,000–$10,000, while invoice drift from an agreed buyout price can reach $100,000 or more on a project.

The clearest killer use case is protecting margin before and during construction. FlowManual flags scope that was added back into a contract before the contractor signs, then checks each incoming invoice against the locked buyout price so that line-item price drift is caught while it can still be corrected.

Product / Service

FlowManual is an AI document-intelligence platform for general and specialty, including MEP, construction contractors. Users upload PDF contracts, specifications, bids, vendor quotes, and invoices. The system marks up scope, prices, deadlines, exclusions, and other relevant information, then compares bids with signed contracts and invoices with locked buyout prices, ranking discrepancies by severity and dollar impact.

The product is delivered as a self-serve SaaS offering with a free plan and paid, scale-oriented tiers. Its value proposition is to replace manual document cross-checking with an auditable list of specific, readable flags rather than a black-box conclusion; the company also emphasizes encryption, company-level isolation, SSO, MFA, audit logging, and an opt-in-only policy for using customer files to train models.

Market

FlowManual competes in construction technology, specifically AI-assisted preconstruction, bidding, procurement, contract analysis, and invoice-control software. Its stated positioning is broader than a single point solution: it follows documents from bid to buyout to invoice. The competitive set includes emerging AI bidding and procurement tools such as Quotr and ContraVault, construction platforms such as BuildOps, and incumbent estimating and preconstruction software.

Public evidence suggests an early-stage company rather than one with publicly demonstrated customer or revenue scale. Y Combinator lists FlowManual as active, founded in 2026, part of its Summer 2026 batch, with a two-person team; the company offers free entry-level access and paid plans for teams. A secondary public profile reports a $130,000 seed round, but the reviewed materials do not disclose customer counts, revenue, or named deployments, so FlowManual should be treated as an early commercial-stage venture rather than conclusively labeled pre-revenue.

Founders & Leadership

David Shijoon BaeFounder
Co-founder & CEO
Michael LinFounder
Co-founder & CTO

Funding History

2026-06
Seed$125K

Y Combinator

Recent News

2026-07-20
FlowManual Funding | Complete Analysis

Extruct describes FlowManual as a document-intelligence platform that reads contracts, specifications, bids, and invoices for HVAC and MEP contractors. It highlights detection of scope items, price references, deadlines, and insurance requirements.

2026-07-19
Y Combinator S26 Batch Companies

Extruct’s roundup of Y Combinator’s Summer 2026 batch includes FlowManual and describes its ability to analyze contract, specification, bid, and invoice documents for HVAC and MEP contractors.

2026-07-15
FlowManual listed in Y Combinator’s Real Estate and Construction startup directory

Y Combinator’s industry directory identifies FlowManual as an all-in-one AI bidding and purchasing platform for general and MEP construction contractors.

2026-06-27product
FlowManual shares demo of its AI-native construction back office

In a LinkedIn company post, FlowManual introduced its AI-native back office for construction contractors and demonstrated automation across bidding, contract review, and invoice review. The post says the product is intended to reduce time and mistakes while keeping contractors in control.

2026-06-24
FlowManual joins Y Combinator’s Summer 2026 batch

Y Combinator’s company profile describes FlowManual as an AI bidding and purchasing platform for general and specialty construction contractors. The profile says the company was founded by David Shijoon Bae and Michael Lin and automates pre-construction buying workflows.

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Business Model

FlowManual uses a freemium hosted SaaS model: solo estimators can use a free plan with daily usage limits, while teams pay through Pro or custom sales-led plans for higher-volume or unlimited usage and priority support.

Products

AI document intelligence for construction specifications, contracts, quotes, invoices, and other PDFsBid-versus-contract comparison with scope-gap, exclusion, severity, and dollar-impact detectionBuyout-versus-invoice monitoring that flags price and line-item varianceConstruction takeoff, revision overlays, estimate cross-checking, RFI logs, submittal registers, and change-order workflowsPurchasing intelligence and price-book analytics based on purchase-order history

Tech Stack

LLM-powered document analysis using the Anthropic APIPDF ingestion, text extraction, and page-level document annotationDatabase-backed analysis-result storage with field-level encryptionAES-256-GCM encryption at rest, HTTPS-only transport, scrypt password hashing, SSO/MFA, and audit loggingDocument connectors for Microsoft OneDrive, SharePoint, Google Drive, Procore, Dropbox, Egnyte, DocuSign, and Autodesk Construction Cloud

Competitors

SmartBid
Autodesk BuildingConnected
ConstructConnect Bid Management
Document Crunch
LegalOn