Business Wire · Feb 2026
Announces the rebrand from SPRX to Onshore and a $31M Series B led by FPV Ventures; states total funding of $46M and continued use of the same leadership team and customers.
Company research
Public company, workplace, funding, and market signals
Updated Jul 30, 2026
Overview
SPRX, now rebranded as Onshore, is an AI-native tax platform that automates R&D tax credit claims and related tax incentives with AI document processing plus credentialed tax-professional review.
Primary product
AI-powered R&D tax credit automation and audit-ready tax study platform
Founded
2020
Headquarters
Wilmington, Delaware, United States
Team size
40-50
Work style
Hybrid
Industry
Software Development
Sub-industry
AI-powered tax software
Offices
Wilmington, Delaware, United States
New York City, New York, United States
Business model
Success-based fee
Software-enabled professional services
B2B
Funding
People & investors
Leadership
Founder & CEO
Co-Founder, COO, Tax Director
Chief Technology Officer
Head of Product
Managing Director
National Vice President of Sales
Work & culture
Ownership-oriented, transparent, and non-corporate culture; software handles repetitive work, but credentialed professionals own outcomes and sign every number.
Work style
Hybrid
Visa sponsorship
No
Compensation
A public Senior Software Engineer posting listed $150,000-$180,000 per year; additional compensation signals were not publicly disclosed.
Benefits
Unlimited PTO
Paid parental leave
Medical insurance
Dental insurance
Vision insurance
FSA/HSA options
Fully stocked kitchen
Regular company gatherings
Free audit support
Product & market
Pricing
Success-based fee model; free assessment offered; payment is due only if credits are recovered.
Differentiators
- —2-3 week turnaround
- —AI automation with human-in-the-loop expert review
- —Audit-ready documentation and audit support
- —Business-component level analysis instead of sampling
- —Integrations with payroll, accounting, ERP, and project tools
- —SOC 2 Type II and end-to-end encryption
- —Claims only what source data supports
Technology
TypeScript
AWS
SST
PostgreSQL
Drizzle ORM
Pinecone
LLMs
AI agents
ADP
Gusto
Paylocity
QuickBooks
NetSuite
Jira
Azure
Customers
500+ companies served
Mid-market and enterprise finance teams
Businesses seeking R&D tax credits
Businesses seeking 179D deductions
Businesses seeking cost segregation studies
Agriculture, architecture & engineering, manufacturing, and oil & gas companies
Competitors
Boast
neo.tax
Clarus R+D
Tax Credit Collective
R&D Advantage
Scale & contact
Estimated revenue
$3M-$5M estimated ARR (GetLatka estimated ARR: $3.3M as of 2025-04-10)
Latest news
Axios · Feb 2026
Axios reports the $31M Series B and says Onshore uses software plus an in-house tax team to help companies claim corporate tax incentives.
Onshore blog · Feb 2026
Official rebrand announcement describing Onshore as an AI-native platform replacing manual CPA workflows with continuous automated tax intelligence.
ADP Ventures · Oct 2024
ADP Ventures announced its investment in SPRX and described the platform as automating more than 80% of R&D tax-credit information collection.
Vertex Ventures US · Oct 2024
Vertex Ventures US announced SPRX’s $12M Series A and described the product as an AI-driven system that automates most manual tax-credit tasks.
Jobs and careers at SPRX
0 jobs at SPRX
No open positions
Check back later for new openings