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Top 10+ IoT Development Companies in Seattle, WA | IoT Developers Seattle 2026

Last Updated 23rd October 2026 | Category: Top Iot Development Firms

As of October 2026, this directory tracks 58 IoT Development companies. Hyperlink InfoSystem currently sits at the top of the list (5.0-star average from 497 verified reviews, $25 - $49 / hr, in business since 2011). Looking at the group as a whole, the midpoint hourly rate is $75, the median rating is 4.7, and 54% report a team of 50 or more. Most frequently listed specialties here include Mobile App Development, IoT Development, Web Development, and Bot Development.

Every company on this page is evaluated on the same real signals: how clients have rated their work, what they charge per hour, how big their team is, and how long they've been in business. Clients rate these iot development firms 4.8/5 on average. $50 - $99 / hr is the most common rate band. Roughly 53% of the companies listed report a headcount of 50 or more. Before reaching out to any shortlisted firm, it's worth cross-checking its review history and portfolio directly - every listing is manually checked (founding year, services, team size) and reviews go through a moderation step before they go live.

58
Verified Firms
$50 - $99 / hr
Most Common Rate
4.8
Average Rating
53%
Have 50+ Employees
How this list is built: Companies are added only after manual research into their foundation year, service offerings, ratings, and employee strength. Client reviews go through a verification step before being marked Verified and shown publicly. Listings marked Sponsored pay for premium placement — sponsorship does not affect star ratings or review content.

Top-Ranked IoT Development Companies

Compare the highest-ranked firms first side by side.

Rank Company Rating Reviews Hourly Rate Team Size Founded Headquarters Action
1 5.0 497 $25 - $49 / hr 1,000 - 9,999 2011 Jersey City, NJ Visit Profile
2 4.8 7 $150 - $199 / hr 2 - 9 2002 McClellan Park, CA Visit Profile
3 4.8 6 $25 - $49 / hr 50 - 249 1992 — Visit Profile
4 4.5 8 $25 - $49 / hr 250 - 999 2011 New York, NY Visit Profile
5 4.5 6 N/A 10 - 49 1999 — Visit Profile
6 4.3 6 $25 - $49 / hr 10 - 49 2010 Dubai, United Arab Emirates Visit Profile
7
4.2 8 $100 - $149 / hr 50 - 249 2009 — Visit Profile
8 4.1 8 $150 - $199 / hr 10 - 49 2011 Johnston, IA Visit Profile
9 — — $50 - $99 / hr 2 - 9 2001 Austin, TX Visit Profile
10 — — $100 - $149 / hr 10 - 49 2017 London, England Visit Profile

The List of Top 10+ IoT Development Companies In Seattle, Washington | Top IoT Developers Seattle, WA October 2026

1999
N/A
10 - 49
$100,000+
Mobile App Development Custom Software Development Web Design Branding SEO
2015
$25 - $49
10 - 49
$5,000,000+
Mobile App Development Web Development UI-UX Design Web Design E-commerce Development Social Media Marketing SEO Android App Development Internet Marketing
2008
$25 - $49
50 - 249
$100,000+
Mobile App Development VR App Development AR App Development Wearable App Development UI-UX Design Custom Software Development Enterprise App Modernization Game Development
1996
$100 - $149
50 - 249
$2,500,000+
Mobile App Development UI-UX Design Custom Software Development
1998
$25 - $49
50 - 249
$100,000+
Mobile App Development Web Development Custom Software Development
2014
$25 - $49
50 - 249
$2,500,000+
Mobile App Development Android App Development Mobile App Design App Marketing iPhone App Development
2011
N/A
10 - 49
$100,000+
Mobile App Development Web Development UI-UX Design Custom Software Development Enterprise App Modernization Web Design Internet of Things
2007
$50 - $99
50 - 249
$50,000+
Mobile App Development Web Development UI-UX Design Custom Software Development Web Design SEO
2007
$25 - $49
50 - 249
$5,000,000+
Content Management System E-commerce Development Enterprise App Development Internet of Things Mobile App Development Web Development
4.6 7 Reviews
2000
$25 - $49
1000+
$2,500,000+
Mobile App Development Web Development UI-UX Design Custom Software Development Web Design Mobile App Design
2001
$50 - $99
50 - 249
$100,000+
Mobile App Development Web Development UI-UX Design Web Design Internet of Things Blockchain Development
2013
$100 - $149
2 - 9
$5,000,000+
Mobile App Development Web Development UI-UX Design
2008
$150 - $199
10 - 49
$5,000,000+
Mobile App Development Web Development UI-UX Design Custom Software Development Web Design
2005
$50 - $99
50 - 249
$2,500,000+
AI Development Internet of Things Mobile App Development UI-UX Design Wearable App Development
2010
$100 - $149
2 - 9
$10,000+
Mobile App Development Web Development UI-UX Design Web Design Enterprise App Development Advertising, Media
4.6 6 Reviews
2013
$100 - $149
10 - 49
$25,000+
Mobile App Development Web Development UI-UX Design Custom Software Development Web Design Android App Development iOS App Development iPhone App Development
2011
$100 - $149
10 - 49
$25,000+
Mobile App Development Web Development Social Media Marketing SEO
2002
$25 - $49
250 - 999
$10,000+
Custom Software Development Mobile App Development UI-UX Design Web Development
2013
$150 - $199
10 - 49
$10,000+
Mobile App Development Web Development UI-UX Design Custom Software Development Web Design
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FAQ

Frequently Asked Questions

Got questions about our specialized technology solutions? We have the answers to help you make informed decisions.

Start by writing down what "done" actually looks like for your project — the core features, the platforms it needs to run on, and a rough budget ceiling. From there, narrow your list to Iot Development agencies in Seattle whose past work matches that scope, and put each one through the same first conversation: a real problem from your project, presented cold, to see how they think rather than how they pitch. The Iot Development company in Seattle that asks the sharpest follow-up questions is usually the one worth a second meeting.

Working with a Iot Development company in Seattle usually comes down to a straightforward trade: strong technical talent at a price point that's hard to match in higher-cost markets, without the coordination overhead of a fully remote, no-local-presence vendor. Teams based in Seattle tend to understand both the practicalities of international client work and the local hiring market, which shows up in smoother onboarding and fewer surprises around contracts and invoicing.

You'll generally see three options from Iot Development companies in Seattle: fixed-price for scopes that are already nailed down, time-and-materials for projects where the requirements are still taking shape, and a dedicated-team arrangement for products with no real end date. Fixed-price protects your budget but punishes scope creep; time-and-materials is more forgiving of changing plans but requires more active oversight from you. A Iot Development firm in Seattle should be able to explain which one fits your situation, not just default to whichever is easiest for them.

Listings for Iot Development companies in Seattle update continuously as new reviews come in, with a more thorough re-ranking pass every few months. That means a firm coasting on an old reputation without fresh client feedback will gradually slide, while newer companies with strong recent delivery can move up — the goal is that the Seattle list reflects how firms are performing now, not two years ago.

Look past the pitch deck: read the portfolio for technical substance, check independent reviews rather than the testimonials on the company's own site, and ask for a reference from a project similar in scope to yours. Then ask directly how they handle QA and what happens when a bug slips through after delivery. A Iot Development company in Seattle that's confident in its process will answer that last question specifically, not with a vague reassurance.

Listen to what they ask about before they start talking solutions. A Iot Development company in Seattle genuinely focused on outcomes will want to understand your users, your revenue model, and your competitors before proposing anything technical. One that jumps straight to a timeline and a quote without asking those questions is optimizing for winning the deal, not for whether the thing they build actually works for your business.

The highest-rated Iot Development companies in Seattle usually earn that position through a combination of solid technical delivery and genuinely good communication — the two rarely show up separately in strong reviews. Look past the aggregate star rating and read a handful of full reviews; specific, detailed praise about how a project actually went is a far better signal of which Iot Development company in Seattle will be a good fit than a number alone.
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