Top React Js Development Companies in Los Angeles

Researched by:Goodfirms Research TeamUpdated:September 29, 2026

Goodfirms has reviewed 38 React Js Development Companies in Los Angeles as of September 2026. The top-ranked firm is Unico Connect (4.8 stars, 43 verified reviews, $25 - $49/hr, founded 2014, Los Angeles). Across the category, the median hourly rate is $37, median client rating is 5, and 37% of firms employ 50+ members. Explore the vetted React Js Development Companies in Los Angeles below, compare their strengths, and connect with the provider best suited to your requirements.

A common problem that app owners face when they shift from one team of React Js developers to another is the way the code is written. When the codebase is written as per international standards, then it is easier for the next developer to make changes to the same. So, when you are shortlisting React Js development services for your dream project, question them about the technical details as well after getting some understanding on the topic.

When you hire React Js developers that follow the coding standards, it will save you time, effort, and money at a later stage when you want to make changes. Do you want to shorten the research process a little? Then here is a list of React Js development companies in Los Angeles that are known for keeping up with the latest work ethics.

Goodfirms has verified 38 React Js Development Companies in Los Angeles - 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 the Best React Js Developers in Los Angeles with reviews

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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

Los Angeles

Home to 102 vetted firms, with an average rate of $71/hr and a 5★ client rating.

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.

City	Firms	Avg Rate	Avg Rating	Value Score	Action
USLos Angeles	102	$71/hr	5	75	View firms

USLos Angeles

102 firms$71/hr5

Value Score75 / 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

X-axis (Core Competencies): Service Focus Ratio + Portfolio Depth + Quality + Experience

Y-axis (360-Performance): Client Reviews + Market Presence + Goodfirms Score

Missing signals are excluded from a firm's score, not substituted with defaults - weights redistribute across remaining inputs

Recency decay over the last 18 months keeps stale reviews from dominating

Eligibility floor: ≥ 1 published review in this category scope

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.

Budget leader

Los Angeles · $0-24/hr

12 firms in this tier - more than any other city, averaging 5.0 ★. Top picks: Probey Services, Promatics Technologies, Persol Cross Technology Vietnam.

Mid-tier leader

Los Angeles · $50-99/hr

24 firms in this tier - more than any other city, averaging 5.0 ★. Top picks: JPLoft, TouchZen Media, Gearheart.

Top tier leader

Los Angeles · $150+/hr

7 firms in this tier - more than any other city, averaging 5.0 ★. Top picks: Dreamers Inc., Isadora Agency, Materalize Labs.

Loading heatmap…

Cell intensity (firm density):

Low

High

Best Value marks the densest, highest-rated, most-affordable cell per row

Top 15 recommended companies by Value Score.

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

Probey Services

5.0122 reviews

92.4VALUE

United States< $25/hr250 - 999

✓ Best Value

Promatics Technologi…Pro Verified

5.073 reviews

90.9VALUE

United States< $25/hr50 - 249

United States$25 - $49/hr250 - 999

United States$25 - $49/hr50 - 249

✓ Best Value

Closeloop Technologi…

5.060 reviews

87.3VALUE

United States$25 - $49/hr50 - 249

✓ Best Value

BEON.techPro Verified

5.067 reviews

87.2VALUE

United States$25 - $49/hr50 - 249

United States$25 - $49/hr50 - 249

United States$25 - $49/hr50 - 249

United States$25 - $49/hr50 - 249

United States$25 - $49/hr1,000 - 9,999

United States$25 - $49/hr50 - 249

✓ Best Value

Persol Cross Technol…

4.94 reviews

82.2VALUE

United States< $25/hr50 - 249

United States$25 - $49/hr10 - 49

United States$25 - $49/hr10 - 49

United States$50 - $99/hr50 - 249

View all 38 firms

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

Top React Js Development Companies in Los Angeles

Top 10 at Glance

List of the Best React Js Developers in Los Angeles with reviews

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Why Unico Connect?

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Why JPLoft?

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Why SoluLab?

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Why Persol Cross Technology Vietnam?

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Why Probey Services?

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Why AppMakers USA?

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Why Promatics Technologies?

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Why inVerita?

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Why TRIARE?

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Why Gearheart?

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Why Goji Labs?

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1 cities with the best Value Score for hiring.

Los Angeles

Where the firms are.

All cities ranked by Value Score.

Match by work-hour overlap with your team.

How firms are placed on the matrix

Found your target region?

Cities with the best Value Score for software development hiring.

Top 15 recommended companies by Value Score.

How the heatmap is built

Found your target region?