Discover Business Service Businesses for Sale in King County, WA
Discover the best business service businesses for sale in King County, Washington, right here on DealStream. Whether you’re hunting for an established IT services firm in Seattle, a thriving landscaping or cleaning company in Bellevue, or a profitable consulting agency in Redmond, our curated marketplace connects you with verified listings, detailed financials and direct seller contact. With new opportunities added daily, you’ll find the perfect service business to match your investment goals. Start your search now and take the first step toward owning a turnkey service business in the heart of Washington’s most dynamic market.
Showcased Deals
$270k Revenue Seattle, WA CPA Tax Firm for Sale
*** 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...
Laundromat - Great Location, Underperforming
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...
All Matching Deals
Laundromat - Great Location, Underperforming
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...
$270k Revenue Seattle, WA CPA Tax Firm for Sale
*** 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...
SBA Pre-Qual Acupuncture & TCM Clinic | 12-Year
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...
Landscape Design and Construction
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...
Turnkey Sign Company for Sale – Owner Retiring
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...
Full Accounting Software Business for Sale in 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...
$6.2M Sales Commercial Bldg Infrastructure Biz
*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...
Tips for Buying Business Service Businesses In King County, WA
Understand the Local Market Dynamics
Before investing in a business service business in King County, it’s essential to thoroughly research the specific market trends in the area. King County, home to Seattle and a robust tech sector, often sees high demand for services supporting technology, professional consulting, and real estate industries. Assess whether your target business’s services align with current local trends and demographic shifts. Engage in due diligence by examining local competitors, customer reviews, and business growth trajectories to make sure the business you’re considering is positioned for future success.
Evaluate Financial Health and Client Base Stability
A strong, diversified client base is a hallmark of a healthy business service company in this region. During due diligence, request and analyze at least three years’ worth of financial statements, paying close attention to revenue consistency and margin trends. King County is known for both its entrepreneurial activity and competition, so make sure the company does not rely on just a few large clients. Diversification protects against sudden revenue declines if a major client departs. Additionally, scrutinize contracts and client retention rates to gauge ongoing income reliability.
Assess Staff, Licensing, and Legal Compliance
Business services often hinge on the skill and reliability of their staff. In King County, qualified employees can be a key differentiator. Evaluate whether the existing team is likely to remain post-sale, and whether any key employees have employment agreements or non-compete clauses. Check local and state licensing requirements, as Washington State (and specifically King County) can have unique regulations, especially for professional and tech-oriented services. Verifying that the business is fully compliant reduces the risk of post-acquisition legal surprises and positions you for a smoother ownership transition.
Browse Other Categories In Washington
- Auto Repair
- Bars / Pubs
- Companies
- Construction
- E-commerce
- Education
- Financial Services
- Franchises
- Healthcare
- Investment Opportunities
- Manufacturing
- Medical Practices
- Middle Market Businesses
- Owner Financed Businesses
- Real Estate
- Restaurants
- Retail Stores
- Small Businesses
- Transportation
- Wholesale Businesses
Browse By Locations In Washington
- King County, WA
- Pierce County, WA
- Snohomish County, WA
- Spokane County, WA
- Thurston County, WA
- Kitsap County, WA
- Whatcom County, WA
- Okanogan County, WA
- Clark County, WA
- Chelan County, WA
- Seattle, WA
- Bellevue, WA
- Tacoma, WA
- Everett, WA
- Spokane, WA
- Renton, WA
- Wenatchee, WA
- Olympia, WA
- Auburn, WA
- Kirkland, WA