Market intelligence for software modernization
Software Modernization Services, by the Numbers
Independent cost, timeline, and outcome data on 3,733+ real modernization projects — so you can budget, plan, and shortlist vendors before a single sales call.
- 3,733+
- Verified projects
- 35
- Migration paths
- 170+
- Vendors profiled
- 12
- Research hubs
What are software modernization services?
Software modernization services are professional engagements that upgrade legacy systems to modern platforms — spanning assessment, rehosting, replatforming, refactoring or rebuilding, data and application migration, and vendor selection. Providers range from boutique specialists to enterprise integrators.
Most engagements map to the 7 R's of modernization — retain, rehost, replatform, refactor, rearchitect, rebuild, or replace — and are priced by scope and complexity. Compare cost benchmarks or read the 7 Rs application-modernization framework.
Where do you want to start?
Most teams arrive with one of three questions. Each door leads straight to the data — no gate, no form to read the numbers.
Estimate your costs
Median cost, timeline, and success-rate benchmarks across every migration path, plus 10 free calculators that size your specific project.
Find the right vendor
When to hire, what to ask, and how engagements are priced — then request a vetted shortlist matched to your stack and budget.
Compare vendors & alternatives
Neutral roundups of the players in each domain — specializations, team size, and track record — so you can size up the field before you commit.
Research Hubs
Technical
Latest Research
View allApplication modernization consulting rates range from $75 to $850/hour for qualified US/EU consultants in 2026 (offshore from $20/hour). Breakdown by firm size, seniority, region, service type, and pricing model — with red flags on inflated proposals.
Cut through the noise with a practical guide to legacy system modernization. Learn to assess risk, choose the right strategy, and measure success.
A guide to application modernization strategies. We analyze the data behind replatforming, refactoring, and rewriting to avoid costly project failures.
Featured Migration Paths
View allReact to Next.js Migration Services
Ruby on Rails Upgrade Services
Silverlight to Blazor Migration Services
VMware to Native Cloud Migration Services
.NET Framework to .NET Core Migration Services
Monolith to Microservices Migration Services
What Modernization Actually Costs
View all cost dataEvery migration path on this site carries a median cost estimate drawn from real project outcomes, vendor-disclosed benchmarks, and public case studies — not vendor marketing. The spread is wide by design: a narrow technical upgrade and a full mainframe-to-cloud transformation are not the same purchase decision, and treating them as one number would hide the information that actually helps with budgeting. The five paths below span that spectrum, from the most expensive migration we track to one of the least, so you can quickly place your own project on the curve before reading the full cost breakdown.
Each row spans that path's low-to-high cost on a shared log scale; the tick marks the median. Tap a path for its full benchmark.
These are median ranges, not fixed quotes — actual cost depends on codebase size, team capability, and vendor selection. The full cost benchmark page breaks every migration path down by complexity level and shows the highest- and lowest-cost paths we track in detail.
Size up the vendor landscape
Neutral roundups of the 170+ agencies, platforms, and SaaS tools we track — sortable by specialization, team size, and documented case studies — so you can build a shortlist and see who actually does this kind of work before you sit through a single pitch.
Frequently Asked Questions
Answers to the questions we hear most often from teams starting to scope a modernization project.
What are the 7 R's of modernization?
The 7 R's are the strategic options for modernizing a legacy system: retain, rehost, replatform, refactor, rearchitect, rebuild, and replace. They span from a low-risk lift-and-shift to a full rebuild or SaaS replacement, each trading cost, risk, and time differently.
Compare all 7 Rs by cost and risk →How much does software modernization cost?
Cost depends heavily on scope. A focused framework or library upgrade can run $20K–$100K, most mid-complexity migrations land in the $250K–$2M range, and a full mainframe-to-cloud program can exceed $10M. Complexity, codebase size, and automation potential drive the spread.
Browse full cost benchmarks →Who are the best software modernization companies?
There is no single "best" — the right provider depends on your source-to-target path, scale, and risk tolerance. Boutique specialists tend to excel at narrow technical migrations, while enterprise integrators suit multi-year, multi-team programs.
Compare application modernization companies →Should we modernize or rebuild from scratch?
Rebuilding from scratch is the highest-risk, highest-cost path and the most common way modernization projects fail — rewrites typically run 2.5–3× longer than estimated. Incremental modernization (refactor or strangler-fig) is usually safer unless the technology is unsupported or the architecture can't scale.
Refactor vs rewrite: the decision framework →How long does a typical modernization project take?
Timelines range from a few weeks for narrow technical upgrades to multi-year programs for large mainframe or ERP replacements. Most well-scoped, Medium-to-High-complexity migrations finish in 3–9 months when run in phased waves rather than a single big-bang cutover.
How is the cost and success-rate data sourced?
Figures are aggregated from real project outcomes, vendor-disclosed benchmarks, and public case studies across the migration paths and services tracked here, then shown as median ranges rather than point estimates. Treat them as directional benchmarks for early budgeting, not fixed quotes.
See our methodology →What's the difference between a migration path and a service engagement?
A migration path (under /migrations/) documents a specific source-to-target transition — its cost, timeline, complexity, and success rate — as a research reference. A service (under /services/) is a scoped engagement you hire a vendor to execute, often with a calculator to size it.