Senior Enterprise Account Executive & Sales Leader

WHITNEY SINCLAIR Oklahoma City, OK PROFESSIONAL SUMMARY Accomplished Senior Account Executive and Sales Leader with over 19 years of success driving enterprise revenue growth, managing multi-million-dollar B2B portfolios, and establishing strategic C-suite partnerships. Expert in high-impact industry networking, global trade show execution, and corporate relationship building. Proven track record of securing up to $4.5M in annual contract value, maintaining industry-leading customer retention rates up to 99%, and translating complex corporate sustainability and operational goals into tailored commercial solutions. Expert in Salesforce CRM execution, technical facility auditing, and cross-functional team leadership. CORE COMPETENCIES • Sales & Strategy: B2B Enterprise Sales, Account Management, Solution Selling, Business Development, Lead Generation, High-Impact Presentations • Relationship Cultivation: Strategic Networking, Corporate Event Integration (Trade Shows & Golf Tournaments), C-Suite Relationship Building • Negotiation & Planning: Multi-Year Contract Negotiation, Strategic Account Planning, Sustainability Consultations, Board Governance & Advocacy • Operational Execution: Technical Auditing, Cross-Functional Collaboration, Pipeline Management, Data-Driven Sales Forecasting LEADERSHIP & BOARD SERVICE Board Member / Trustee Multiple Industry Associations 2014-2018 • Direct board-level leadership and governance across regional commercial real estate, property management, and construction trade organizations. • Associations Represented: Commercial Real Estate Women Oklahoma City (CREW- OKC), Building Owners and Managers Association (BOMA Oklahoma City), National Association of Women in Construction (NAWIC OKC), and the Tulsa/Texas Apartment Association (TAA). • Leveraged executive board leadership to expand corporate market visibility, lead committee initiatives, spearhead association golf tournaments, and scale strategic partnership networks across Oklahoma. PROFESSIONAL EXPERIENCE United Mechanical Oklahoma City, OK Maintenance Sales Manager 03/2025 – 10/2026 • Generated $1.3M in closed contract sales through Q3 2026, consistently ranking as a top-tier revenue producer for commercial mechanical and HVAC preventative maintenance agreements. • Attained top corporate sales distinctions by capturing consecutive Gold, Silver, and Bronze performance milestones every quarter through rigorous pipeline execution. • Sourced lucrative new commercial business channels by systematically leveraging market research, municipal OKC permits, and targeted industry networking events, including corporate golf tournaments and regional trade shows. • Conducted technical facility infrastructure assessments to engineer customized mechanical maintenance strategies, significantly reducing client operational downtime and optimizing system efficiency. Waste Management (WM) Oklahoma City, OK Senior Account Executive 06/2021 – 03/2025 • Managed a high-value portfolio of 50+ key corporate accounts, securing $4.5M in annual revenue through consultative upselling and contract optimization. • Accelerated pipeline conversion by 80% Year-over-Year (YOY) by managing end-to-end sales cycles and service ticketing via Salesforce CRM, averaging $320K in qualified leads. • Boosted customer retention to 90% (exceeding corporate targets by 10 percentage points) by formulating and executing strategic account health plans for 36 major enterprise clients. • Partnered with the Strategic Account Manager (SAM) to systematically convert high-volume temporary construction site projects into permanent commercial waste service contracts. • Architected data-driven, tailored logistics solutions for C-suite clients by conducting complex technical waste stream audits aligned with corporate sustainability goals. • Spearheaded complex multi-year contract negotiations with executive stakeholders, maximizing corporate profit margins while mitigating legal and operational risk. CSC ServiceWorks Oklahoma City, OK Senior Account Executive 03/2011 – 09/2020 • Supervised a high-volume territory portfolio exceeding 2,500 active accounts, systematically outperforming corporate sales quotas by 10% YOY. • Maintained an elite 99% annual account retention rate through proactive check- ins and executive relationship management strategies with key property personnel. • Accelerated new business acquisition by utilizing specialized industry tools like ALN, targeted cold-calling campaigns, regional trade shows, and high-value client referrals. • Structured and negotiated complex, multi-year service agreements with property owners and C-suite executives across hospitality, multi-family housing, and institutional facilities. • Conducted properties and facilities audits to analyze equipment utilization, select optimal payment architectures, and define service-level agreements. Bricktown Media Oklahoma City, OK Sales Coordinator / Sales Executive 05/2007 – 04/2009 • Sold high-value advertisement and media spaces for a nationally distributed niche trade publication catering to the Oil & Gas and logistics industries. • Cultivated global client accounts through strategic international business travel, trade show relationship building, and on-site consultations. • Oversaw advertising sales documentation, processed insertion orders, and managed corporate billing invoicing cycles via SalesLogix CRM. • Maximized brand presence at global industry exhibitions, managing corporate trade booths and high-value networking spaces to capture international market share and qualify enterprise leads. ADDITIONAL PROFESSIONAL HISTORY • Orthodontist Assistant Cosse and Simon Shreveport, LA 2009 – 2010 • Manager & Assistant Buyer Heaven Sent Coppell, TX 2001 – 2004