National Accounts Manager

Career Opportunities: National Accounts Manager (4784)

Requisition ID 4784 - Posted 08/29/2026 - 50% travel - 7-10 yrs experience - BOXX Modular (USA) - Dallas-Fort Worth, TX - Sales & Marketing - Work Arrangement (1)

Black Diamond Group owns and operates a portfolio of businesses specializing in modular buildings and remote and temporary workforce housing solutions, along with a digital marketplace for business-to-business crew travel management. We create value by providing differentiated solutions. We believe each customer and each project is unique and that we can tailor a combination of products and services that deliver an enhanced outcome. Our Way is to Create a Better Way - this is our challenge, our call to action, our why!

We believe that a clear strategic vision, with measurable objectives, along with disciplined accountability and data-based decision-making leads to successful outcomes. When we couple this approach with our values-driven, collaborative, safety-conscious culture, we achieve top decile performance, deliver results, and have fun while doing it!

We offer careers, not jobs, and we strive for an environment where the best people come to work and feel rewarded for their contributions. We are a team of the best and the brightest in the industry, and since our inception, we have led with a people-first approach. We give our employees ample opportunity to pursue their interests and passions and support them as their careers progress.

BOXX Modular, a business of Black Diamond Group, rents, leases, and sells temporary and permanent modular buildings, including standard buildings ready for immediate delivery and custom-designed solutions. We work with our customers to design and deliver customized solutions and provide additional services such as delivery and installation, furniture rentals and other add-ons.

BOXX Modular is hiring for National Accounts Manager for United States.

Reporting to the Senior Vice President, MSS USA, the National Accounts Manager partners closely with Regional General Managers, Branch Managers, and functional leaders to coordinate multi-region opportunities, ensure consistent execution of national customer agreements, and deliver an exceptional customer experience across the organization. The role leads through collaboration and influence, working across regional and functional teams to align customer strategies, support business growth, and achieve BOXX Modular's strategic objectives.

The National Accounts Manager is responsible for developing, managing, and growing strategic national customer relationships across the United States. This role focuses on establishing and maintaining Master Service Agreements (MSAs), expanding business with key national accounts, and identifying new enterprise growth opportunities.

The Ideal candidate is a senior B2B sales or national account professional with 7+ years of experience managing and growing strategic, multi-location accounts, including executive relationships and complex contract/MSA negotiations.

Strong commercial acumen, proven revenue growth, and cross-functional influencing skills; experience in modular, construction, equipment rental, or related industries is highly desirable.

Key Responsibilities

National Account Management

• Develop and maintain relationships with strategic national customers and executive decision-makers.
• Establish, negotiate, and manage Master Service Agreements (MSAs) and other national commercial agreements.
• Develop strategic account plans to grow revenue and strengthen long-term customer partnerships.
• Coordinate customer strategies and opportunities across multiple regions to ensure a consistent customer experience.
• Serve as the executive point of contact for assigned national accounts.

Business Development

• Identify and pursue new national account opportunities aligned with the Company's strategic objectives.
• Partner with Regional General Managers and Branch Managers to support business development activities and customer pursuits.
• Support major proposals, contract negotiations, and executive customer presentations.
• Monitor market trends, customer needs, and competitive activity to identify growth opportunities.

Collaboration

• Work closely with Regional General Managers, Construction Services, Sales, and Operations to deliver integrated customer solutions.
• Maintain accurate customer information, pipeline activity, and account plans within Salesforce.
• Represent the organization at customer meetings, industry events, and conferences.
• Provide regular updates to senior leadership on account performance, pipeline, and strategic opportunities.

Qualifications and Requirements

• Bachelor's degree in Business Administration, Sales, Marketing, or a related field is considered an asset. An equivalent combination of education and relevant experience will be considered.
• 7+ years of experience in strategic sales, business development, or national account management.
• Demonstrated success developing executive-level customer relationships and negotiating commercial agreements.
• Experience managing national or multi-location customer accounts is preferred.
• Strong business and financial acumen with exceptional verbal and written communication skills, with the ability to clearly articulate complex information, influence stakeholders, and communicate effectively across all levels of the organization
• Experience within the modular space solutions, construction, equipment rental, or related industry is considered an asset.
• Proficiency in Microsoft Office Suite and CRM platforms (Salesforce preferred).
• Ability to travel throughout the United States as required.
• This is a full-time position with a salary commensurate with experience and industry standards. Excellent benefits package and participation in the BOXX Modular Commission Plan.

For more information, please visit www.BlackDiamondGroup.com

We are an Equal Opportunity Employer

Black Diamond Group Limited is committed to diversity, equal opportunity and ensuring that our employees have the ability to thrive in an inclusive environment. We are pleased to consider all qualified applicants for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, marital status, family status, veteran status, Indigenous status, national origin, age, disability or any other legally-protected factors. Accommodation for applicants with disabilities is available upon request during the recruitment process.

Company: BOXX Modular

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