Table of contents
How we vet every listicle
Every agency featured on Web Tonic passes our 84-point editorial review before a single listicle goes live. This is how we vet each pick:
Verified client outcomes: We require real case studies with measurable KPIs — revenue, ROAS, CPA, retention — tied to the exact category being ranked. No cherry-picked wins, no unverifiable numbers.
Independent reputation: We cross-check Clutch, Google, G2, and Trustpilot ratings, and screen for review-bombing or suspicious patterns. Only operators with a consistent, verifiable track record make the cut.
Beyond that, every listing goes through a quarterly re-audit. We check 84 criteria across 6 pillars to make sure it still holds up — here are some of the checks we run:
An influencer marketing agency plans and runs paid partnerships with social media creators: it finds creators who fit the brand, negotiates fees and usage rights, briefs and approves content, and reports on reach and sales. Seattle brands in tech, outdoor and retail often need creators who can explain a product, not just show it.

To make this list, each of the ten external agencies had to show influencer or creator work on its own website. Not all of them have an office in Seattle, so each card gives the firm's real base, and clients and prices appear only where published.
Who are the best influencer marketing agencies for Seattle?
Web Tonic plus ten external agencies that show influencer marketing work on their own sites. Three have an office in Seattle; the others work with Seattle brands remotely. Eight name a client publicly and one publishes a price.
1. Web Tonic
About: Web Tonic sources and manages creators and UGC from our Seattle office and runs the best posts as paid social ads, so every creator is judged on sales rather than likes. Content rights, ad permissions and reporting stay in the brand's own name, with results tracked from first post to purchase.
Key Services: Growth Marketing, Paid Social, PPC, Meta Ads, SEO, Google Ads, Snapchat Ads, Amazon Ads, Reddit Ads, TikTok Ads, TikTok Shop, GEO-AEO, Webflow Design, Shopify Design, WordPress Design, UGC, Social Media Management, Pay Per Click Management, Marketing Analytics, Analytics Implementation & CDPs, Performance Branding, Performance 360° Audit, Programmatic Ads, OOH Ads, HR Marketing
Industries Served: eCommerce, SaaS, B2B, Construction Professionals, Home Services, SMEs, Health Spa & Wellness, Retail, Legal & Judicial Services, Food & Beverages, Pets, Fitness, Family & Children, Finance & Insurance, Travel, Non-Profits & Organizations, Furniture & Decoration
Notable Clients: WorldRemit, Jack & Jones, Ardene, L’Oréal, Sendwave, Nestlé, Airbnb. Serve Fortune 500 companies and smaller fast-paced startups.
Locations: Local Seattle office, with the main HQ in San Francisco and notable offices in New York, Chicago, Miami, Toronto, Montreal, Dubai, Singapore, Sydney and more. Offices on five continents.
Pricing: Starting at USD $3,000 per month. Flexible and scalable plans at any time according to your enterprise needs. Book a call to learn more.
Great For: Mid-market to enterprise-level businesses requiring ongoing, on-tap growth and performance marketing services.
Website: Web Tonic
2. New Engen
About: New Engen is a creative-led digital agency in Seattle, with offices listed in Rogers, Arkansas and Manhattan Beach, California, that runs influencer campaigns next to paid media. Its site names Coca-Cola and Mondelez among its clients.
Key Services: Influencer Marketing, Paid Social, Paid Search, Creative Production, Retail Media, Analytics
Industries Served: Consumer Packaged Goods, Retail, Food and Beverage, Apparel, Consumer Tech
Notable Clients: Coca-Cola, Mondelez
Locations: Seattle, Washington, Rogers, Arkansas, Manhattan Beach, California
Pricing: Quote-based
Great For: DTC brands that want creator content for paid ads, Ecommerce teams tracking sales from creators, Brands testing TikTok and Instagram at scale
Website: New Engen
3. Crown Social
About: Crown Social is a social media agency working from Seattle and Los Angeles with an influencer and creator practice. Its site names clients such as Amazon, Brooks, Zillow and 1 Hotels.
Key Services: Influencer Marketing, Creator Talent Management, Social Media Management, Content Production, Paid Social, Community Management
Industries Served: Retail, Real Estate, Hospitality, Consumer Tech, Apparel and Footwear
Notable Clients: Amazon, Brooks, Zillow, 1 Hotels, Dell
Locations: Seattle, Washington, Los Angeles, California (no street address published)
Pricing: Quote-based
Great For: DTC brands that want creator content for paid ads, Ecommerce teams tracking sales from creators, Brands testing TikTok and Instagram at scale
Website: Crown Social
4. NinjaPromo
About: NinjaPromo is a subscription-based digital agency with a New York address and further US addresses in Seattle and Atlanta. Influencer marketing on Instagram, TikTok and YouTube is one of the services its monthly plans cover.
Key Services: Influencer Marketing, Social Media Marketing, Paid Social, Video Production, Branding, PR
Industries Served: Fintech, Crypto and Web3, SaaS, Healthcare, Ecommerce
Notable Clients: Brain Scientific
Locations: New York, New York, Seattle, Washington, Atlanta, Georgia
Pricing: USD $4,000 per month (Starter subscription, 40 hours)
Great For: Consumer brands that want press and creators in one plan, Launches that need earned media and influencer posts together, Brands with a story worth pitching
Website: NinjaPromo
5. GO Media
About: GO Media is a digital agency in Raleigh with a social media influencer management service. Its site names clients such as Gladwell, Living Stone and Radeas.
Key Services: Influencer Management, Social Media Marketing, SEO, Paid Ads, Web Design, Content Creation
Industries Served: Restaurants and Hospitality, Retail, Real Estate, Health and Wellness, Local Consumer Brands
Notable Clients: Gladwell, Living Stone, Radeas
Locations: Raleigh, North Carolina
Pricing: Quote-based
Great For: DTC brands that want creator content for paid ads, Ecommerce teams tracking sales from creators, Brands testing TikTok and Instagram at scale
Website: GO Media
6. Carnsmedia
About: Carnsmedia is a New York social media agency built around restaurants and food brands, with a dedicated restaurant influencer service. It names clients such as Ferrara Bakery, Little Pie Company and True World Foods.
Key Services: Restaurant Influencer Campaigns, Social Media Management, Content Creation, Food Photography, Paid Social, Community Management
Industries Served: Restaurants, Bakeries, Food and Beverage, Hospitality, Specialty Food
Notable Clients: Ferrara Bakery, Little Pie Company, True World Foods, Noble Fresh Cart
Locations: New York, New York
Pricing: Quote-based
Great For: Restaurants and hospitality brands, Local lifestyle and food businesses, Brands opening new locations
Website: Carnsmedia
7. Cercone Brown Company
About: Cercone Brown Company is a communications agency with New York and Boston offices that runs a dedicated influencer programme next to media relations. Its published work includes influencer campaigns for Medela, Breescape and Milo’s Sweet Tea.
Key Services: Influencer Relations, Media Relations, Events and Experiences, AI Visibility, Crisis Communications, Strategic Counsel
Industries Served: Health and Wellness, Food and Beverage, Consumer Products, Insurance, Baby and Parenting
Notable Clients: Medela, Breescape, Milo’s Sweet Tea
Locations: New York, New York, Boston, Massachusetts (no headquarters named)
Pricing: Quote-based
Great For: Consumer brands that want press and creators in one plan, Launches that need earned media and influencer posts together, Brands with a story worth pitching
Website: Cercone Brown Company
8. KWSM
About: KWSM is a digital marketing agency in Aliso Viejo, California, with offices listed in San Diego and Atlanta and a dedicated influencer marketing service. Its site names Portland Cider Company and Rakuten Super Logistics as clients.
Key Services: Influencer Marketing, Brand Storytelling, Social Media, Content Marketing, Paid Media, Web Design
Industries Served: Food and Beverage, Logistics, Professional Services, Healthcare, Consumer Brands
Notable Clients: Portland Cider Company, Rakuten Super Logistics
Locations: Aliso Viejo, California, San Diego, California, Atlanta, Georgia
Pricing: Quote-based
Great For: DTC brands that want creator content for paid ads, Ecommerce teams tracking sales from creators, Brands testing TikTok and Instagram at scale
Website: KWSM
9. Viral Nation
About: Viral Nation is a social media and influencer marketing company that also runs talent management and social commerce services. Microsoft is among the clients named on its site.
Key Services: Influencer Marketing, Talent Management, Social Commerce, Creative Production, Paid Social, Brand Safety
Industries Served: Consumer Tech, Entertainment and Media, Retail, Automotive, Financial Services
Notable Clients: Microsoft
Locations: No office address published on the pages we checked
Pricing: Quote-based
Great For: DTC brands that want creator content for paid ads, Ecommerce teams tracking sales from creators, Brands testing TikTok and Instagram at scale
Website: Viral Nation
10. The Power Group
About: The Power Group is a Dallas PR firm that lists community and influencer relations among its core services. Client testimonials on its site credit its ties with Dallas media and local influencers.
Key Services: Influencer Relations, Media Relations, Social Media, Crisis Management, Event Coordination, Media Training
Industries Served: Restaurants and Hospitality, Retail, Real Estate, Health and Wellness, Local Consumer Brands
Notable Clients: Not named on the pages we checked
Locations: Dallas, Texas
Pricing: Quote-based
Great For: Consumer brands that want press and creators in one plan, Launches that need earned media and influencer posts together, Brands with a story worth pitching
Website: The Power Group
11. Socially Powerful
About: Socially Powerful is a social and influencer marketing agency founded in 2017 with hubs in London, New York, Dubai and Beijing. Its New York office on Wall Street leads North American campaigns.
Key Services: Influencer Marketing, Social Strategy, Creator Content, Paid Social, Gaming and Esports Campaigns, Measurement
Industries Served: Consumer Tech, Gaming, Beauty and Skincare, Education, Retail
Notable Clients: Not named on the pages we checked
Locations: London, United Kingdom, New York, New York, Dubai, United Arab Emirates, Beijing, China
Pricing: Quote-based
Great For: DTC brands that want creator content for paid ads, Ecommerce teams tracking sales from creators, Brands testing TikTok and Instagram at scale
Website: Socially Powerful

Quick Comparison Table
| Agency | Key Specialty | Starting Price | Best For |
|---|---|---|---|
| 1. Web Tonic | Full-Service Performance Marketing | USD $3,000/mo | Mid-market to Enterprise (local Seattle office) |
| 2. New Engen | Creator plus paid media | Quote-based | DTC brands that want creator content for paid ads |
| 3. Crown Social | Social and creator programmes | Quote-based | DTC brands that want creator content for paid ads |
| 4. NinjaPromo | Subscription influencer and social | USD $4,000 per month (Starter subscription, 40 hours) | Consumer brands that want press and creators in one plan |
| 5. GO Media | Influencer management for regional brands | Quote-based | DTC brands that want creator content for paid ads |
| 6. Carnsmedia | Restaurant and food influencers | Quote-based | Restaurants and hospitality brands |
| 7. Cercone Brown Company | PR-led influencer relations | Quote-based | Consumer brands that want press and creators in one plan |
| 8. KWSM | Story-led influencer campaigns | Quote-based | DTC brands that want creator content for paid ads |
| 9. Viral Nation | Talent-backed influencer campaigns | Quote-based | DTC brands that want creator content for paid ads |
| 10. The Power Group | Dallas influencer and media relations | Quote-based | Consumer brands that want press and creators in one plan |
| 11. Socially Powerful | Cross-border influencer campaigns | Quote-based | DTC brands that want creator content for paid ads |


Frequently Asked Questions
How do I choose an influencer marketing agency in Seattle?
Start with proof of creator work rather than general social media claims: a live influencer service page, a named brand you can check and examples of content the agency briefed. Eight of these ten agencies name a client on their own site (Coca-Cola and Amazon among them). Then ask how they vet creators for fake followers and brand safety, who owns the content rights and how every paid post gets the disclosure the FTC Endorsement Guides require.
How much does influencer marketing cost in Seattle?
Only one of the ten external agencies publishes a figure on its site (NinjaPromo lists USD $4,000 per month). Everyone else quotes per campaign, which is normal because costs depend on creator tiers, the number of posts and how long the brand may reuse the content. Separate the agency fee from creator fees and from any paid boosting, and ask what happens if a creator misses a deadline.
What is the difference between an influencer specialist and a general agency?
The main split is between specialist influencer agencies and broader PR, social or performance agencies that run creator campaigns as one service. Specialists tend to have bigger creator networks, vetting tools and usage-rights experience; broader shops fold creators into press, paid social or content plans. Compare who actually sources the creators and who is accountable for results. Ask to see a recent campaign report from each, because the reporting shows how an agency really works.
How long does an influencer campaign take to show results?
A single campaign usually takes four to eight weeks from brief to live posts: sourcing and outreach, contracts, product shipping, drafts and approvals. Early signals such as views, saves and code redemptions arrive within days of posting in a market like Seattle, but a clear read on sales and repeat creators usually takes two or three campaigns. Always-on ambassador programmes need a full quarter to settle.
Should a Seattle brand hire a local influencer agency or a remote one?
Three of the ten external agencies have an office in Seattle; the others work remotely from bases such as Aliso Viejo, Dallas and London. A local team helps with events, product seeding and in-person shoots with Seattle creators, but most influencer work is sourced and managed online. What matters more is the creators an agency can reach and results you can check. Ask each firm which Seattle creators it has booked recently and what those posts delivered.
Choosing an Influencer Marketing Agency in Seattle
Start with your own goals. Decide whether the campaign is for awareness, content you can reuse in ads or direct sales, and what a new customer is worth. An agency can only cast the right creators around targets it has been told about.
Check experience you can verify. Eight of the ten external agencies name a client on their own site and one publishes a price. Ask the rest for campaigns you can look up, and see how we pair creators with paid social.
Agree how you will work together. Settle who signs the creators, who owns the content and ad permissions, how posts are approved and which single number the campaign is judged on. Our performance creative team turns creator content into ads.
Never skip the consultation. Book calls with two or three firms from this list, bring the same brief to each and compare the creators they suggest. If you want a team in the city, meet our Seattle office.


