Business Service Companies for Sale in Washington State

Discover the best Washington business service businesses for sale on DealStream and turn your entrepreneurial dreams into reality. Our up-to-date listings feature a wide range of service ventures—from IT support and commercial cleaning to marketing agencies and consulting firms—available across Washington State. Whether you’re a first-time buyer or seasoned investor, find the perfect service business opportunity with detailed financials, seller insights, and expert support every step of the way. Browse now to secure your next Washington service business and start growing today!

All Matching Deals

Laundromat - Great Location, Underperforming
Seattle, WA

Unique opportunity to own a laundromat with a great location in the heart of one of Seattle’s iconic neighborhoods. City of Seattle maps show an average annual daily traffic of 12,000 vehicles passing by this location. The laundromat is located near apartment complexes, a well known restaurant, a highly...

$375,000
Details
High Growth, Highly Profitable IT Solutions
Washington

Company Overview The Company is a high-growth consulting firm providing IT, marketing, analytics, and strategic project-based consulting services to a diverse client base. The firm differentiates itself by combining senior-level expertise, a scalable consultant model, and a strong focus on execution—delivering...

On Request
Cash Flow: $150,000
Details
Seattle, WA

*** THIS LISTING IS CURRENTLY SALE PENDING. *** OVERVIEW Broker represents this CPA tax practice located in Seattle, WA. The seller is willing to provide transitional assistance to the buyer to help ensure client retention. THE PRACTICE The practice has primarily individual tax clients, with...

$440,000
Cash Flow: $220,467
Details
SBA Pre-Qual Acupuncture & TCM Clinic | 12-Year
King County, WA

Broker presents an SBA Pre-Qualified Traditional Chinese Medicine clinic that has served its local market for more than a decade, building a trusted reputation for personalized, results-focused care. Operating since 2014, this practice provides appointment-only Acupuncture treatments and customized...

$3,600,000
Cash Flow: $1,018,290
Details
Structural & Civil Engineering Firm
Snohomish County, WA

Structural and Civil Engineering firm focused on single-family residential projects. Firm has been serving the Greater Seattle Area, and more specifically Snohomish County, for over 3 decades, with deep local knowledge and a large and highly diversified client base. Most of the business is generated...

$500,000
Cash Flow: $140,781
Details
Small, Well-Known Transactional Firm Growing Niche
Pierce County, WA

The Seller of this small, transactional, law firm has been serving a specific business to business niche for over forty years. While they do business across the entire State of Washington, most of the relationships funneling deals to the firm are located within Western Washington. Operating from a small...

$500,000
Cash Flow: $266,581
Details
Snohomish County, WA

This carpet cleaning company is based in north King County and serves the greater King and Snohomish County areas with both residential and commercial carpet cleaning and other specialty carpet and surface protection services. They strive to create trustworthy relationships with each of their customers...

$195,000
Cash Flow: $65,385
Details
Yakima, WA

Steady revenue, all-in-one shop for B2B automotive needs. This business-to-business success makes us recession-resistant and in-demand all year long. Several types of local businesses depend on us to provide wholesale parts and supplies. Auto parts stores, repair and body shops, auto dealers, and more...

$409,000
Details
Landscape Design and Construction
King County, WA

Here is the perfect opportunity to own a profitable design and build landscaping business. Add this flourishing business to your own or take over and expand. This company provides innovative, sustainable residential landscapes in the Greater Seattle Area and around the Puget Sound that appeal to the...

$1,000,000
Cash Flow: $438,103
Details
Turnkey Sign Company for Sale – Owner Retiring
King County, WA

Trusted sign company for sale! Established in 1959, this sign company has built a strong reputation for quality work and dependable service. This is a rare opportunity to acquire a turnkey operation. Perfect for an established sign business looking to expand or a motivated buyer looking to get in on...

$160,000
Cash Flow: $54,105
Details
Full Accounting Software Business for Sale in WA
King County, WA

LISTING ID # 33833 This business is a sales, contact manager inventory & accounting system. Fully customizable to create industry specific solutions. Written in MS Access & Visual Basic. Data is stored using MS Access databases or SQL Server backend databases. Fully documented comprehensive user...

$400,000
Cash Flow: $58,000
Details
35% Profit Ratio to Hydraulic Repair in WA
Washington

Located within Central Washington State, this company offers hydraulic repair machinery services for the Pacific Northwest! Up to 20% Year Over Year Growth Rate with a 35% Profit Ratio! Efficiently streamlined with onsite repairs, inventory management, and billing. Company’s Quality Six Step Process...

$5,250,000
Cash Flow: $864,350
Details
$6.2M Sales Commercial Bldg Infrastructure Biz
King County, WA

*UNDER CONTRACT as of 12/9/25* This owner and business are currently in an exclusivity period with a prospective buyer. While the transaction between these two parties is expected to move forward, we will reach out to all interested buyers should the circumstances change. Broker is actively seeking...

$2,000,000
Cash Flow: $322,000
Details
Established Roll Off Company
Clark County, WA

Established Roll off company for sale. This 14+ year company has client list, and website. Business comes with 1 truck and 30 dumpsters ranging from 10 yard to 40 yard. Business did $410,000 is gross sales last year. Option to add another truck and 6 more dumpsters. Must sell fast. Serious inquiries...

$280,000
Details
Washington

New Turnkey Online Digital Marketing Agency - Fully Outsourced ZERO OPERATING EXPENSES Can be operated from anywhere in the world. Email for more details or to arrange purchase.

$499
Details

Tips for Buying Business Service Businesses In Washington

Understand the Local Market and Regulations

Success in acquiring a business service company in Washington starts with a deep understanding of the local market dynamics and relevant state regulations. Washington is known for its diverse economic base and a strong emphasis on compliance with labor laws, environmental rules, and business licensing. Carefully review local competition, demand for specific services, and city or county-specific requirements that may affect operations. Consult local industry associations and regulatory agencies to ensure that you’re aware of any new or upcoming changes that might impact your investment.

Assess Financials and Hidden Liabilities

Thorough due diligence is essential when evaluating business service companies. Go beyond the profit and loss statements and review tax returns, accounts receivable aging reports, employee records, and client contracts. In Washington, many service businesses rely on long-term client relationships and retainers; verify the stability and terms of these contracts. Be aware of possible hidden liabilities such as pending litigation, unpaid state taxes, or unreported employment obligations that could become your responsibility after the purchase.

Analyze Talent and Transition Planning

Washington’s competitive business environment means that top talent is crucial for service-based enterprises. As part of your assessment, evaluate the skills, experience, and retention of key employees. Understand how heavily the business relies on its current owner for client relationships or technical expertise, and develop a solid transition plan. Consider negotiating an extended handover period or owner consultancy to preserve customer confidence and maintain service quality during the change of ownership. Retaining key employees and clients through transparent communication will help ensure a successful transition and sustainable growth post-acquisition.