TOP 10 LIST2026

Top 10 Legacy Modernization Agencies in Texas (2026)

The best legacy modernization agencies in Texas, curated by AgencyCluster.

6 verified agencies
41+ years avg. experience
Updated

The Top 10

The absolute best in legacy modernization

Infosys
Texas·Enterprise·45+ yrs·Score: 100

Leading global IT services company with robust cloud migration practice spanning strategy, execution, and managed services.

Top Rated15+ YearsEnterprise
Cloud Migration & ModernizationLegacy Modernization
NTT DATA
Texas·Enterprise·38+ yrs·Score: 92

Global IT services company providing mainframe modernization with AWS Premier Consulting Partner status and proprietary UniKix rehosting software for up to 70% cost savings.

Top Rated15+ YearsEnterprise
App Modernization & Legacy MigrationLegacy Modernization
Entrance Consulting
Texas·Boutique·17+ yrs·Score: 83

Custom app development company with extensive experience in legacy application modernization and enterprise technology platform transformation.

Top Rated15+ YearsBoutique
Legacy Modernization
Softweb Solutions
Texas·Large Team·26+ yrs·Score: 83

IT consulting company specializing in AI, data solutions, and digital transformation services globally.

Top Rated15+ YearsLarge Team
Data Engineering & AnalyticsLegacy Modernization
XTGlobal
Texas·Enterprise·28+ yrs·Score: 83

IT services company providing legacy system modernization and transformation with cloud migration and digital enablement expertise.

Top RatedGoogle PartnerAWS Partner+3 more
Legacy ModernizationCustom Software Development
Fujitsu
Texas·Enterprise·91+ yrs·Score: 80

Fujitsu is a global leader in digital services that transform organizations and the world around us. We aim to make the world more sustainable by building trust in society through innovation.

Top RatedGoogle PartnerAWS Partner+4 more
Legacy Modernization

Top 10 Legacy Modernization Agencies — FAQ

Common questions about the best legacy modernization agencies in Texas.

Who is the #1 legacy modernization agency in Texas in 2026?

As of 2026, the top-ranked legacy modernization agency in Texas on AgencyCluster is Infosys, with an AgencyCluster Score of 100/100. Rankings are based on verified evidence across credibility, proof of work, reputation, category specialization, delivery maturity, and freshness. Rankings are updated periodically as new evidence becomes available.

How were the top 10 legacy modernization agencies in Texas selected?

This list features 6 agencies selected from AgencyCluster's curated directory. Each agency was evaluated using the AgencyCluster Score (0–100), with particular weight on demonstrated expertise in legacy modernization. Only agencies with verified credentials are eligible, and rankings cannot be purchased. The agencies on this list average 41+ years of experience. For full methodology details, see our How We Rank page.

What should I look for when choosing a legacy modernization agency from this list?

Ask for case studies with measurable outcomes relevant to your specific project. Check team composition — do they have specialists or generalists? Ask about their communication cadence and project management approach. Request client references from companies of similar size and complexity to yours.

How much do the top legacy modernization agencies typically charge?

Project costs vary significantly based on complexity, team size, and engagement model. Request proposals from 3–5 agencies to benchmark pricing. Be cautious of quotes that are dramatically lower than others — they usually indicate corners being cut.

Trusted Rankings

Every agency on this list has been reviewed by our editorial team. Rankings are based on our transparent methodology which evaluates credibility, outcomes, and reputation.

No paid rankingsVerified credentialsUpdated regularly

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