What Blackline Design + Construction does

Blackline Design + Construction is a privately held, integrated general contracting, design-build, architecture, and real estate development firm headquartered at 2217 Locust St., St. Louis, Missouri. Founded in 2009, the firm employs 11–50 people and operates exclusively within the St. Louis metropolitan area, serving developers, business owners, and organizations across multiple verticals including multi-family residential, historic renovation, retail, hospitality, office, food manufacturing, early childhood education, and nonprofit facilities. Its distinguishing operational model consolidates real estate development, architecture, design-build, and general contracting under a single entity, enabling clients to engage one counterparty from feasibility and financial modeling through permitting and construction completion.

The firm's service portfolio is anchored by four core offerings (General Contracting, Design Build, Architecture, Real Estate Development) complemented by eight industry vertical specializations. Revenue is earned through project-based contracts — primarily fixed-price or cost-plus general construction agreements — with typical project budgets ranging from $300,000 to $20 million. Customer acquisition is sales-led and driven by direct relationships, referrals, and portfolio-driven discovery via the company's website and social channels (Facebook, LinkedIn, Instagram), with no distributors, resellers, or marketplace channels. Named clients span SMBs (Clementine's Creamery, Capriotti's, Brick River Cider, Beast Butcher & Block, Volpi Foods), enterprises (Enterprise Mobility, Wallis Companies / Craft Kitchens), startups (EpiCrop Technologies), and nonprofits (West End Clinic, Urban Sprouts Early Childhood Center).

The firm's most differentiated capability is deep expertise in state and federal historic tax credits, applied across over $200 million in completed historic renovation value and 1,200+ units delivered, with more than $40 million in tax credits utilized across projects. Blackline also acts as its own developer, having purchased and redeveloped the former Weber Motor Car Co. building (2015) and the Louis Lange Publishing Company property (2016). No proprietary technology, software platform, or AI/ML capability is disclosed; the business is services-only with documented 2025–2026 project execution indicating active, ongoing operations.

Name

Blackline Design + Construction

Legal name

Blackline Design + Construction

Website

https://blacklinestl.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

11–50 employees

Short description

Blackline Design + Construction is an integrated general contracting, design-build, architecture, and real estate development firm based in St. Louis, Missouri, serving developers, businesses, and nonprofits across multi-family, historic renovation, hospitality, food manufacturing, and other verticals with project budgets ranging from $300,000 to $20 million.

Ownership category

akta.pro rank

Product category

Commercial Construction Services

NAICS

Commercial and Institutional Building Construction (236220), Architectural Services (541310)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Services-Engineering Services (8711)

akta.pro primary industry

Design-Build / EPC General Contracting (IMAFAAAD)

akta.pro secondary industries

Office & Corporate Building Construction (IMAFACAA), Architectural Design Services (BPAHAKAA), Construction Engineering & Constructability Consulting (BPAHAIAN)

Keywords

• General contracting services
• Design-build construction
• Architecture services
• Real estate development
• Historic renovation construction

Headquarters

HQ city

St Louis

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Others

Revenue model

1. General Contracting Services: Blackline serves as the general contractor overseeing end-to-end construction for commercial projects in St. Louis, MO. Revenue is earned through fixed-price or cost-plus construction contracts on a per-project basis, with typical project budgets ranging from $300,000 to $20 million.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Blackline Design + Construction provides end-to-end construction, architecture, design-build, and real estate development services for commercial, residential, hospitality, retail, office, food manufacturing, and historic renovation projects in the St. Louis market. The firm integrates development consulting, architectural design, and general contracting under a single entity to deliver projects ranging from $300,000 to $20 million in budget. Its offering is anchored by specialized expertise in adaptive reuse and State and Federal Historic Tax Credit utilization.

Product overview

Blackline Design + Construction offers an integrated suite of construction and development services through four core offerings: General Contracting, Design Build, Architecture, and Real Estate Development. These core services are complemented by specialized industry vertical services including Multi-Family, Controlled Growth Environments & Manufacturing, Historic Renovation, Retail, Office Space, Early Childhood, Non-Profit, and Hospitality construction. The company differentiates itself through its integrated approach, combining all roles under one roof to provide clients with comprehensive expertise spanning from design and development through construction and building operations.

Differentiator

Problem solved

Functional benefit

Products and services

• General Contracting End-to-end construction oversight for commercial projects in St. Louis, MO, managing every aspect from initial planning to final execution to meet timelines, budget, and quality expectations.
• Design-Build Streamlined design-build service serving as a single source for all design and construction needs, integrating architect, designer, estimator, and contractor roles for cohesive and efficient project delivery.
• Architecture Client-centric architecture services with expertise in commercial, residential, and mixed-use buildings, including adaptive re-use of historic properties and new construction.
• Real Estate Development Comprehensive real estate development and consulting services including market analysis, financial modeling, due diligence, strategic planning, site selection, feasibility analysis, and construction management, with expertise in State and Federal Historic Tax Credits.
• Historic Renovation Construction Comprehensive historic renovation services including assessment, historical research, preservation planning, structural stabilization, architectural restoration, rehabilitation, and adaptive reuse for historic properties.
• Multi-Family Construction Diverse multi-family construction projects including adaptive reuse, low-rise to high-rise apartment complexes, condominiums, townhomes, mixed-use developments, affordable housing, senior housing, and student housing.
• Controlled Growth & Food Manufacturing Construction Design and construction of controlled growth chambers, greenhouses, commercial kitchens, warehouses, ground-up builds, tenant improvements, adaptive reuse, interior fit-outs, and additions/expansions for food manufacturing and controlled environment agriculture operators.
• Retail Construction Design and construction of retail spaces that engage customers and guide them through thoughtful, intentional experiences optimizing function and customer interaction, including tenant improvements and new builds.
• Office Space Construction

Quantifiable outcome

• Over 1,200 units completed in historic renovation projects with a value exceeding $200 million
• +2 more outcomes

Named customers11 records

Segments9 records

Ideal customer profiles8 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators7 records

Recent moves4 records

Expansion highlights5 records

Direct peers

• Clayco: St. Louis-headquartered national EPC and design-build firm offering integrated real estate development, architecture, and construction services. Closest large-scale analog to Blackline's integrated delivery model, though operating at significantly greater scale and geographic reach.
• McCarthy Building Companies: Major St. Louis-based commercial general contractor and design-build firm with national reach across healthcare, education, commercial, and industrial sectors. Directly comparable in geography and integrated design-build delivery, serving larger institutional clients.
• Paric Corporation: St. Louis-based design-build and construction management firm serving commercial, multi-family, hospitality, and mixed-use developers. Closely comparable in scale, geography, and integrated design-build service offering to mid-market project sizes.
• KAI Design & Build: St. Louis-area integrated design-build firm offering architecture, engineering, and construction services under one roof. Very similar in model and scale to Blackline, competing for the same mid-market commercial and adaptive reuse projects.
• Tarlton Corporation: Established St. Louis-based general contractor and construction management firm serving commercial, institutional, healthcare, and historic renovation clients. Comparable regional GC competitor with overlap on Blackline's office, hospitality, and adaptive reuse segments.
• BSI Constructors: St. Louis-area commercial general contractor and design-build firm focused on mid-market commercial, education, healthcare, and hospitality projects. Closely comparable in size, project range, and integrated delivery approach.
• Holland Construction Services: St. Louis-area design-build and general contracting firm serving commercial, multi-family, healthcare, and education clients. Similar mid-market profile and integrated services portfolio to Blackline.

Broad incumbents

• Alberici Group: St. Louis-based construction services and design-build firm with broader industrial/heavy-civil exposure. Overlaps with Blackline on commercial design-build and adaptive reuse but operates at significantly larger scale and is more diversified into industrial infrastructure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/blackline-design-construction
• Instagraminstagram.com/blacklinestl

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Blackline Design + Construction