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Top ReactJS Development Companies in Sunnyvale

Researched by:Goodfirms Research TeamUpdated:September 29, 2026

Goodfirms has reviewed 10 ReactJS Development Companies in Sunnyvale as of September 2026. The top-ranked firm is Magicmind Technologies Limited (4.9 stars, 9 verified reviews, $25 - $49/hr, founded 2016, Sunnyvale). Across the category, the median hourly rate is $37, median client rating is 4.8, and 39% of firms employ 50+ members. Explore the vetted ReactJS Development Companies in Sunnyvale below, compare their strengths, and connect with the provider best suited to your requirements.

Goodfirms has verified 10 ReactJS Development Companies in Sunnyvale - part of 9,007+ React.js Development Companies, each passing Goodfirms' 4-step verification process (background check, client interviews, portfolio audit, ongoing quality review). Listings marked "Sponsored" are agencies that pay for premium placement - sponsorship does not affect star ratings or review content.

Top 10 at Glance

Compare the highest-ranked firms first side by side.

Rank
Company
Rating
Reviews
Hourly Rate
Team Size
Founded
Location
Action

List of Best ReactJS Development Companies in Sunnyvale

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Client Type

  • Magicmind Technologies Limited

    4.99 Reviews

    Magicminds: Digital Solutions, Global Aspirations – Bridging the Gap with Excellence. Magicminds: Empowering Solutions & Services – Bridging the Gap with Excellence. Headquartered in the USA with global footprints spanning across India and Australia, Magicminds stands as a frontrunner in app development, custom software solutions ... read Magicmind Technologies Limited reviews & insights

    Magicminds: Digital Solutions, Global Aspirations – Bridging the Gap with Excellence. Magicminds: Empowering Solutions & ... read Magicmind Technologies Limited reviews & insights

    $25 - $49/hr
    50 - 249
    2016
    Sunnyvale, United States
    They were impeccable - CEO & Board Member at Azumi Restaurant Group
    Visit Website

  • Thinksys

    5.01 Review

    ThinkSys, an award-winning technology company, is a leading provider of Products and Software Development, QA and related services. Based in Sunnyvale, CA and offices in NOIDA, India. ThinkSys serves clients worldwide. We have been recognized among the fastest growing private companies in the US (Inc5000 ... read Thinksys reviews & insights

    ThinkSys, an award-winning technology company, is a leading provider of Products and Software Development, QA ... read Thinksys reviews & insights

    NA
    50 - 249
    2012
    Sunnyvale, United States
    MVP Development - Chief People Officer at HealthHero
    Visit Website

  • Grazitti Interactive Inc.

    5.01 Review

    Grazitti Interactive is a global leader in digital services, utilizing Cloud, mobile, artificial intelligence, and social media technologies to transform businesses. Since 2008, Grazitti has been powering companies with innovative SaaS products, services, and solutions. With a dynamic team of over 1200 tech experts across ... read Grazitti Interactive Inc. reviews & insights

    Grazitti Interactive is a global leader in digital services, utilizing Cloud, mobile, artificial intelligence, and ... read Grazitti Interactive Inc. reviews & insights

    $50 - $99/hr
    1,000 - 9,999
    2008
    Sunnyvale, United States
    Consistent Quality Partner - Brooke Bartos
    Visit Website

  • Tekrowe

    Tekrowe Digital is a Technology and Software development outsourcing company committed to powering other technology startups and enterprises as well as developing in-house solutions to help innovate the future. We specialize in building robust mobile and web applications. Our professional team has in-depth expertise in such key technologies as Java, NodeJS, .Net as well as ... read Tekrowe reviews & insights

    Tekrowe Digital is a Technology and Software development outsourcing company committed to powering other technology ... read Tekrowe reviews & insights

    $25 - $49/hr
    50 - 249
    2019
    Sunnyvale, United States
    Visit Website

  • Roxosoft LLC

    Roxosoft is an innovative custom software development agency based in the United States, known for delivering tailored software solutions that meet complex needs. With extensive experience designing and developing enterprise applications, automation tools, and advanced engineering solutions, Roxosoft leverages modern trends and methodologies to ensure top-notch results. Its team consists of highly qualified developers with ... read Roxosoft LLC reviews & insights

    Roxosoft is an innovative custom software development agency based in the United States, known for ... read Roxosoft LLC reviews & insights

    $50 - $99/hr
    10 - 49
    2008
    Sunnyvale, United States
    Visit Website

  • Arosys Technologies

    At Arosys, we are more than just a software development company. With more than 20 years in business, we have evolved to be your strategic technology partner. We are committed to transforming your vision into innovative solutions. With a team of highly skilled professionals and a relentless focus on excellence, we specialize in delivering mission-critical ... read Arosys Technologies reviews & insights

    At Arosys, we are more than just a software development company. With more than 20 ... read Arosys Technologies reviews & insights

    NA
    10 - 49
    2004
    Sunnyvale, United States
    Visit Website

  • CodeWheel AI

    CodeWheel AI builds production-grade AI platforms for companies that need enterprise architecture - not just an app. I design, build, and operate full-stack AI products: RAG pipelines, agent systems, identity platforms, billing infrastructure, security operations, and observability - unified under one engineering workflow. What makes this different: Instead of juggling agencies or freelancers, you get ... read CodeWheel AI reviews & insights

    CodeWheel AI builds production-grade AI platforms for companies that need enterprise architecture - not just ... read CodeWheel AI reviews & insights

    $150 - $199/hr
    Freelancer
    2011
    Sunnyvale, United States
    Visit Website

  • Star

    Star is a global team of builders. We connect strategy, design, and engineering services into a seamless workflow devised to build solutions with the right focus on impact, scalability, performance and prudence. We anchor everything we do in clear and compelling endgames to create superior solutions and commercial successes for you. Our delivery centers are ... read Star reviews & insights

    Star is a global team of builders. We connect strategy, design, and engineering services into ... read Star reviews & insights

    NA
    250 - 999
    2008
    Sunnyvale, United States
    Visit Website

  • Fission Labs Inc

    We at Fission Labs have pledged to help our clients navigate to their next big product success. We leverage cutting edge technologies such as Cloud, AI, Big Data, IoT, and Machine learning to deliver intuitive, customer-friendly, and scalable solutions that address your core business needs. Our Driving Forces: Integrated Innovation: Innovative solutions and lateral thinking ... read Fission Labs Inc reviews & insights

    We at Fission Labs have pledged to help our clients navigate to their next big ... read Fission Labs Inc reviews & insights

    $25 - $49/hr
    50 - 249
    2008
    Sunnyvale, United States
    Visit Website

  • SapidBlue

    We work with Businesses to build their Digital Products with AI & Blockchain First Approach Product Engineering and Digital Transformation - through New Age Technologies, Data & AI, and Automation We collaborate with our clients to challenge the status quo, innovate and design outstanding digital experiences, and create customized digital solutions. Our Data Engineering, Data ... read SapidBlue reviews & insights

    We work with Businesses to build their Digital Products with AI & Blockchain First Approach ... read SapidBlue reviews & insights

    $25 - $49/hr
    50 - 249
    2022
    Sunnyvale, United States
    Visit Website

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1 cities with the best Value Score for hiring.

Ranked by a composite blending firm count (supply), average rating (quality), and average hourly rate (cost). Affordability is weighted highest (50%), so this surfaces genuinely affordable destinations - not just the biggest markets.

US★ TOP PICK

Sunnyvale

Home to 23 vetted firms, with an average rate of $67/hr and a 4.8★ client rating.

Firms23
Avg Rate$67/hr
Avg Rating★ 4.8
Value Score70 / 100

Where the firms are.

Bubble size shows how many firms each country has; colour shows its average hourly rate. Tap any country for its firm count, average rate, rating, and Value Score.

Loading map…

All cities ranked by Value Score.

Every city in scope, ranked by Value Score.

CityFirmsAvg RateAvg RatingValue ScoreAction
USSunnyvale23$67/hr4.870View firms
USSunnyvale
23 firms$67/hr4.8
Value Score70 / 100
View firms

Match by work-hour overlap with your team.

Cost matters - but so does being able to actually talk to your developer during your workday. Here are the best destinations for each major hub.

If you're in US (PT/ET)Recommended

Look for nearshore LATAM partners - same-day collaboration, similar time zones, and 50-60% cost savings vs domestic.

MXMexico~7h overlap
ARArgentina~6h overlap
BRBrazil~5h overlap
CACanada~8h overlap
If you're in Europe (CET/GMT)Recommended

Eastern Europe is your sweet spot - 1-2h time zone shift, EU GDPR alignment, and 40-50% lower rates than Western Europe.

PLPoland~8h overlap
UAUkraine~7h overlap
RORomania~7h overlap
ZASouth Africa~8h overlap

How firms are placed on the matrix

Every position on this chart is the output of the Goodfirms ranking algorithm - a weighted composite of signals across two axes. The algorithm is recomputed regularly and is fully documented.

Sponsorship does not affect placement. PRO members receive visible badges and ad placements, but their algorithmic scores are calculated identically to free listings.

Read the full methodology
Algorithm at a glance
1
X-axis (Core Competencies): Service Focus Ratio + Portfolio Depth + Quality + Experience
2
Y-axis (360-Performance): Client Reviews + Market Presence + Goodfirms Score
3
Missing signals are excluded from a firm's score, not substituted with defaults - weights redistribute across remaining inputs
4
Recency decay over the last 18 months keeps stale reviews from dominating
5
Eligibility floor: ≥ 1 published review in this category scope

Found your target region?

Browse all firms in your chosen country - or let us hand-pick matches based on your project, budget, and time-zone preference.

Get matched firms

Cities with the best Value Score for software development hiring.

Ranked by a composite score blending firm count (supply), average rating (quality), and median hourly rate (cost). Affordability is weighted highest (50%), so this list surfaces actually affordable destinations rather than just-big markets.

Mid-tier leader
Sunnyvale · $50-99/hr

5 firms in this tier - more than any other city, averaging 4.7 ★. Top picks: Dizzain.com, Grazitti Interactive Inc., BL Stream.

Top tier leader
Sunnyvale · $150+/hr

1 firms in this tier - more than any other city. Top picks: CodeWheel AI.

Loading heatmap…
Cell intensity (firm density):
Low
High
Best Value marks the densest, highest-rated, most-affordable cell per row

Top 14 recommended companies by Value Score.

Ranked across all heatmap cells - each blends a low hourly rate, a strong rating, and sufficient review volume.

1
Magicmind Technologi…
5.09 reviews
81.8VALUE
United States$25 - $49/hr50 - 249
✓ Best Value
2
Fortunesoft IT Innov…
5.04 reviews
80.3VALUE
United States$25 - $49/hr50 - 249
✓ Best Value
3
Dizzain.com
5.02 reviews
69.4VALUE
United States$50 - $99/hr10 - 49
4
Grazitti Interactive…
5.01 reviews
68.2VALUE
United States$50 - $99/hr1,000 - 9,999
5
BL Stream
4.82 reviews
65VALUE
United States$50 - $99/hr1,000 - 9,999
6
Protofire
62.7VALUE
United States$25 - $49/hr50 - 249
7
Logo Fication
62.7VALUE
United States$25 - $49/hr10 - 49
8
Fission Labs Inc
62.7VALUE
United States$25 - $49/hr50 - 249
9
SapidBlue
62.7VALUE
United States$25 - $49/hr50 - 249
10
Tekrowe
62.7VALUE
United States$25 - $49/hr50 - 249
11
Mendios Technologies
4.04 reviews
52.5VALUE
United States$50 - $99/hr10 - 49
12
Roxosoft LLC
48.1VALUE
United States$50 - $99/hr10 - 49
13
UpTeam
28.8VALUE
United States$100 - $149/hr50 - 249
14
CodeWheel AI
9.6VALUE
United States$150 - $199/hrFreelancer

How the heatmap is built

Every cell in the grid above is the count of firms in (place × hourly-rate tier). Firms are placed by their published hourly rate; those without a disclosed rate are not plotted.

Top company names per cell are surfaced by Value Score - a weighted blend of affordability (50%) + rating (35%) + review volume (15%).

The "Best" ribbon marks the cell in each row where firm density, ratings, and affordability line up best - the densest, highest-quality combination.

Read the full methodology
Value Score · per firm
ValueScore = 0.50 × Affordability
+ 0.35 × Rating
+ 0.15 × Review Volume
// All sub-scores normalized 0-100
// Affordability = (1 - rate/$200) × 100
// Rating = (rating - 3) / 2 × 100
// Volume = log10(reviews+1)/log10(200) × 100

Found your target region?

Browse all software development firms in your chosen country - or let our AI hand-pick 3 matches based on your project, budget, and time-zone preference.

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