What National Lien Services, LLC does

National Lien Services, LLC is a privately held, Arizona-domiciled legal document preparation firm founded in 2013 that delivers construction payment-protection services nationwide across all 50 states. The firm specializes in preliminary notices (preliens), mechanic's liens, bond claims, and lien waiver management for general contractors, subcontractors, specialty trades, and material/equipment suppliers, providing client support from initial notice filing through payment escalation and coordination with outside legal counsel. Document work is complemented by escalation specialists and quality control review, with client-facing delivery through the Prelien Pro software platform for waiver tracking and document requests.

The business model combines professional services (per-document preparation fees on Net 20 terms with rush surcharges and Quick Pay Program options), subscription-style access to the Prelien Pro client portal and waiver management software, and fee-based training delivered through NLS University and the Academy for Construction Excellence ($95-$110 per session). Customer acquisition is consultative and sales-led, supported by segment-specific landing pages for GCs, trades, and suppliers, dedicated Research Analysts per account, free consultations, and active content marketing (Risk Radar newsletter, LinkedIn Live "AITA" sessions, podcast appearances, industry events).

The customer base spans enterprise general contractors (Balfour Beatty, DPR Construction, Skanska USA Building, Haydon, Caliente Construction, Willmeng Construction), specialty trade contractors (Canyon State Electric, D.P. Electric, Jenco), and large material/equipment suppliers (Nucor Harris Rebar, RDO Equipment Co., Winsupply, Miller Wholesale Lumber). The team is small (11-50 employees, with five named specialists), bootstrapped with no disclosed external funding, and led by founding member Amy Houk, who also serves as Chief Product Officer of Prelien Pro Technologies. Quantified cumulative scale includes 100k+ projects researched and $37+ billion in construction project value protected.

Name

National Lien Services, LLC

Legal name

NATIONAL LIEN SERVICES, LLC

Website

https://nationallienservices.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

National Lien Services, LLC is an Arizona-based private legal document preparation firm serving construction industry general contractors, subcontractors, and material/equipment suppliers nationwide. It provides preliminary notices, mechanic's liens, bond claims, and lien waiver management across all 50 states, supported by the Prelien Pro software platform and NLS University training.

Ownership category

akta.pro rank

Product category

Construction Lien Services

NAICS

Professional, Scientific, and Technical Services (54)

SIC

Services-Services, Nec (8900)

akta.pro primary industry

Real Estate Payoff & Lien Release Services (BPAJAOAI)

Keywords

• Construction lien services
• Preliminary notice preparation
• Mechanic's lien filing
• Waiver management
• Bond claim services

Headquarters

HQ city

Mesa

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Others

Revenue model

1. Professional Lien Document Services: Research, clerical, and related legal document drafting services for preparation and service of lien-related documents. Fees include standard Net 20 payment terms, Quick Pay Program (QPP), and time-of-service payment options. Rush fees may apply for expedited processing.
2. Software Platform Access (Prelien Pro): Best-in-class lien waiver management software and document preparation platform accessible through client portal. Clients in good standing receive access to online portal for document requests and tracking.
3. Training and Education Services: Custom in-house training, webinars, seminars, micro-webinars, and software certifications for construction accounting, risk management, and project management teams. Fee-based training sessions through Academy for Construction Excellence partnership.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

National Lien Services is a legal document preparation firm that researches, drafts, and serves construction lien-related documents nationwide. Its core offerings include preliminary notices (preliens), mechanic's liens and bond claims, and lien waiver management services, delivered with dedicated research analysts and supported by the Prelien Pro software platform for tracking and collaboration.

Product overview

National Lien Services provides a suite of construction payment protection services focused on lien rights, preliminary notices, and waiver management. The core offering consists of three interconnected service lines: (1) Preliminary Notices (Preliens) that establish lien rights by serving required notices to property owners and contractors; (2) Mechanic's Liens and Bond Claims which serve as escalation tools when payment issues arise; and (3) Waiver Management to create statutorily compliant lien waivers and track them throughout the project lifecycle. Supporting these core services are NLS University (educational training on lien processes) and State-by-State Lien Law Guides (reference content for all 50 states). The company leverages Prelien Pro software for client document management and lien waiver tracking, and provides services nationwide for general contractors, specialty trades, and material/equipment suppliers.

Differentiator

Problem solved

Functional benefit

Products and services

• Preliminary Notices (Preliens) Construction notice services that establish the right to file a mechanic's lien or bond claim. Includes proactive-state notices sent at project start and reactive-state notices served before filing a lien. Targeted at general contractors, subcontractors, and suppliers that need to protect their payment rights.
• Mechanic's Liens and Bond Claims Escalation document preparation services including Mechanic's Lien Claims, Claims Against a Bond (Bond Claims), Notices of Intent to Lien, Lien Releases, Stop Notices, and Little Miller Letters used to enforce payment rights when projects encounter payment issues.
• Waiver Management Service for creating statutorily correct lien waivers in all 50 states and tracking, collaborating, and sharing waivers with trade partners through the Prelien Pro software platform. Designed for GCs, subcontractors, and suppliers managing waiver workflows across projects.
• NLS University Training and Education Educational and training service offering webinars, seminars, micro-webinars, custom in-house training, and software certifications on lien rights, notices, waivers, and construction payment protection. Aimed at construction accounting, risk management, and project management professionals.

Quantifiable outcome

• $37+ billion in construction project value protected
• +3 more outcomes

Named customers15 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Prelien Pro TechnologiescoreTechnology or IntegrationTechnology partnership providing best-in-class lien waiver management software. Prelien Pro platform enables clients to track, collaborate, and share lien waivers with trade partners. Amy Houk serves as Chief Product Officer of Prelien Pro Technologies.
• Construction CFOminorStrategic or Co-development PartnerConstruction-focused accounting and financial advisory support partner helping contractors strengthen forecasting, improve visibility, and scale operations.
• Construction Contract CoachminorGTM or Marketing PartnerPartner empowering subcontractors to own their contracts, win projects, eliminate claims, and maximize profits through contract education and guidance.
• Academy for Construction ExcellencecoreStrategic or Co-development PartnerProvides construction-focused training, education, and networking through industry-led curriculum. NLS delivers courses on liens, bonds, and payment protection through this partnership.
• CFMA (Construction Financial Management Association)coreGTM or Marketing PartnerLeading association for construction financial professionals offering education, networking, and practical resources. NLS participates as industry association member.
• NAWIC (National Association of Women in Construction)coreGTM or Marketing PartnerSupports and advances women in construction through leadership development, mentorship, education, and community. NLS supports through membership and participation.
• Arizona Subcontractors AssociationcoreGTM or Marketing PartnerRepresents subcontractors and suppliers in Arizona advocating for fair construction practices, stronger business conditions, and industry education.
• Arizona Construction TradesminorGTM or Marketing PartnerAids Arizona-based subcontractors, material suppliers, and service providers in providing solutions for problems that arise in the construction trade industry.
• Compassion AllianceminorOthersCommunity-focused nonprofit support centered on compassionate outreach and practical assistance for first-responders in need.
• Wounded Warrior ProjectminorOthersProvides programs and long-term support for wounded veterans and their families including mental health resources, career services, and advocacy.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• e-Builder (Trimble): Capital program and construction project management platform owned by Trimble, used by owners and large GCs to manage project financials, contracts, and compliance — competes with NLS for enterprise-driven compliance work as part of a wider PMIS.
• Sage Construction & Real Estate (Sage 300 CRE / Sage Intacct Construction): Specialty construction ERP system used by GCs and subcontractors for job costing, AP, and contract management — overlaps with NLS's enterprise GC and specialty trade customers via integrated financial and compliance workflows.
• Procore Technologies: Industry-leading construction management platform that absorbed Levelset's lien compliance capabilities into its broader project management suite. Competes with NLS by offering notice and waiver workflows bundled with PMIS, financial, and field operations tools for enterprise GCs.
• ConstructConnect: Preconstruction and bid management platform serving GCs and subcontractors across the US, with growing exposure to project data, supplier networks, and contract documentation that overlaps with parts of NLS's GC and supplier customer base.
• Jonas Construction Software: Mid-market construction ERP and project management platform for specialty trades and GCs, covering job costing, billing, and contract compliance — overlaps with NLS's specialty trades and GC segments with bundled workflow tools.
• Autodesk Construction Cloud: Suite of construction products (including PlanGrid and BIM 360) that increasingly integrates document and contract management for commercial construction — adjacent to NLS's document preparation and lien management offerings at larger project scale.
• Oracle Textura: Construction payment management platform handling lien waivers, payment applications, and compliance workflows at enterprise scale for large GCs and owners — overlaps with NLS's waiver management and preliminary notice offerings but within a broader payment/ERP ecosystem.

Emerging players

• Kahua: Cloud-based collaboration and project management platform purpose-built for the design-construction-operate workflow, with growing capabilities in contract and document management — adjacent competitor targeting similar mid-market owner/GC buyers as NLS.

Direct peers

• Levelset: Provides software and services for preliminary notices, lien waivers, and construction payment compliance. Acquired by Procore in 2021, it is the closest direct competitor to NLS in notice preparation and waiver management for GCs, subcontractors, and suppliers.

Others

• LegalZoom: Broad consumer and small-business legal document preparation service. While not construction-specific, it is comparable as a technology-assisted legal document service targeting customers who need recurring compliance paperwork without engaging a full-service law firm.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/NationalLien
• Facebookfacebook.com/NationalLienServices
• LinkedInlinkedin.com/company/national-lien-services
• Instagraminstagram.com/nls_construction_pics

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 National Lien Services, LLC