What FastRuby.io does

FastRuby.io is a Philadelphia-based, privately-held professional services firm specializing in Ruby on Rails version upgrades and technical debt remediation. Founded in 2012 and operating under THE LEAN SOFTWARE BOUTIQUE LLC (parent brand OmbuLabs), the company has completed over 100 application upgrades ranging from MVPs to 500,000-line monoliths, spanning every Rails major version from 2.3 through 8.2. Its core offering is project-based Rails upgrade services that integrate with client engineering teams, using a proprietary Dual-Boot Upgrade Method that allows clients to continue shipping features during the upgrade process rather than freezing product development.

The company monetizes through four primary revenue streams: project-based Rails upgrades priced via quote based on codebase complexity; the Bonsai Monthly Maintenance subscription ($2,000-$4,000/month across Shohin, Komono, and Dai tiers) for ongoing technical debt remediation; one-time Security Audit engagements ($9,900-$16,900 with optional penetration testing); and Staff Augmentation services embedding FastRuby.io engineers in client teams. Sales-led go-to-market targets both enterprise and mid-market segments ranging from startups to Fortune 500s, with clients including Epassi, TuneCore, Power HRG, Storenvy, and DocSpring across fintech, music distribution, HR, e-commerce, and document management verticals.

FastRuby.io's technology moat rests on accumulated expertise rather than proprietary software. The firm maintains several open-source tools (next_rails, bundler-leak, skunk) used by the broader Rails community, plus a free web-based Gemfile.lock Audit Tool at audit.fastruby.io and an Automated Roadmap assessment tool that serve as lead generation assets. With 11-50 employees and no disclosed external funding, the company operates as a bootstrapped boutique consultancy whose competitive advantage derives from 60,000+ developer hours of upgrade specialization rather than scalable software infrastructure.

Name

FastRuby.io

Legal name

THE LEAN SOFTWARE BOUTIQUE LLC

Website

https://fastruby.io

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

11–50 employees

Short description

FastRuby.io is a Philadelphia-based Rails upgrade consultancy that has completed over 100 Ruby on Rails version migrations since 2012, serving startups through Fortune 500 clients with project-based upgrades, monthly maintenance retainers, and security audits.

Ownership category

akta.pro rank

Product category

Ruby on Rails Upgrade and Maintenance Services

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182)

SIC

Services-Computer Programming Services (7371), Services-Prepackaged Software (7372)

akta.pro primary industry

Managed DevOps / Platform Operations (Run & Operate) (BPAEAKAO)

akta.pro secondary industries

DevOps, SRE & Platform Engineering Consulting (BPAHAEAK), DevOps, SRE & Platform Engineering (EDAOAIAD)

Keywords

• Ruby on Rails upgrades
• Rails maintenance services
• Technical debt remediation
• Legacy application modernization
• Rails security audits

Headquarters

HQ city

Philadelphia

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Marketing or Sales, Operations

Revenue model

1. Rails Upgrade Services: Project-based professional services for upgrading Rails applications from older versions to current stable versions. Pricing varies based on application complexity and scope of work.
2. Monthly Maintenance Retainers (Bonsai): Fixed-cost monthly retainer model for ongoing technical debt remediation including Ruby upgrades, Rails upgrades, dependency management, performance monitoring, and security patches. Packages range from $2,000 to $4,000 per month.
3. Security Audit Services: One-time security audit engagements priced at $9,900 for standard audit or $16,900 for audit with penetration testing, delivered in 2-3 weeks.
4. Staff Augmentation: Embedded engineering team services where FastRuby.io engineers join client teams to ship features and pay down tech debt. Billed through retainer or hourly arrangements.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

FastRuby.io is a specialized Ruby on Rails upgrade service that migrates legacy Rails applications (versions 2.3 through 6.x) to current supported versions (7.x through 8.2) without interrupting product development. The company also provides recurring monthly maintenance retainers, security audits, and embedded staff augmentation, leveraging open-source tooling and a dual-boot upgrade methodology to pay down technical debt in client codebases.

Product overview

FastRuby.io is a specialized Rails upgrade service company offering a portfolio of interconnected services. The core service is the Rails Upgrade Service, which upgrades applications from legacy versions (2.3+) to current supported versions (up to 8.1+). Complementary offerings include The Complete Guide to Upgrade Rails (free eBook), the Gemfile.lock Audit Tool (web-based vulnerability scanner), and the Automated Roadmap (free assessment tool). Security services include the Ruby on Rails Security Audit with vulnerable dependency scanning and penetration testing. Ongoing maintenance is provided through Bonsai Monthly Rails Maintenance (Shohin, Komono, Dai tiers) and Staff Augmentation Services for flexible team capacity. The company also maintains open-source tools including next_rails, bundler-leak, and skunk to support DIY upgrades.

Differentiator

Problem solved

Functional benefit

Brands

• AuditTool: A tool created to allow users to check their Gemfile.lock for vulnerabilities in a quick and secure manner using bundler-audit.

Products and services

• Rails Upgrade Service Core professional service that upgrades Ruby on Rails applications to secure, supported versions, ranging from legacy versions like 2.3 through current 8.x releases. Capabilities cover MVPs through 500,000-line monoliths, with dual-boot methodology enabling continued feature development during the upgrade.
• Bonsai Monthly Rails Maintenance

Quantifiable outcome

• 100+ applications upgraded since 2012
• +2 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• OmbuLabscoreOthersFastRuby.io is a productized service offered by OmbuLabs, The Lean Software Boutique. OmbuLabs is the parent company providing the service infrastructure and brand identity for FastRuby.io. OmbuLabs also offers custom AI solutions through OmbuLabs.ai and additional software development services.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• thoughtbot: Well-known Ruby on Rails consultancy offering development, code audits, and maintenance services. Comparable as a Ruby/Rails specialist serving startups through enterprise with project-based and retainer-style engagements.
• Planet Argon: Portland-based Rails agency that has historically focused on Rails upgrades, maintenance, and hosting for legacy applications. Most directly comparable to FastRuby.io in niche, customer base (legacy Rails owners), and dual focus on managed maintenance plus project upgrades.
• DockYard: Boston-based digital consultancy with deep Rails/Elixir expertise, offering custom development, platform builds, and modernization. Comparable in serving similar enterprise clients needing Ruby expertise, with broader scope than pure upgrades.
• Hashrocket: Chicago-based Rails consultancy historically focused on expert Ruby on Rails development, pairing, and code review. Comparable as a boutique Rails specialist serving product teams, though with a broader build focus than FastRuby.io.
• Railsware: Ruby on Rails consultancy and product studio offering custom Rails development and ongoing support. Comparable as a specialist Rails firm serving product teams with both project and retainer-style engagements.
• reinteractive: Australian Rails consultancy offering development, upgrade, and managed Rails hosting/support services. Directly comparable as a Ruby/Rails specialist serving mid-market and enterprise clients with upgrade and ongoing maintenance engagements.

Broad incumbents

• Atomic Object: US-based custom software consultancy with broad polyglot capabilities including Rails. Comparable as a project-and-retainer professional services firm, though less Rails-specialized than FastRuby.io.
• Big Nerd Ranch: Long-standing app development and consulting firm with Rails capabilities alongside iOS and Android. Comparable as a project-based consultancy, but broader in technology focus than FastRuby.io's niche.
• Heroku (Salesforce): Managed Rails platform offering hosting, add-ons, and enterprise support for Ruby apps. Comparable as part of the Rails ecosystem serving companies that need to keep legacy apps running, with overlap on the 'keeping Rails apps healthy' mission.

Others

• Toptal: Global freelance talent marketplace that includes senior Rails engineers available for staff augmentation. Comparable as an alternative channel for companies seeking to extend their Rails team, directly competing with FastRuby.io's staff augmentation offering.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/fast-ruby

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about FastRuby.io