Interspark
30+ senior engineers across 4 time zones delivering outsourced CTO and development retainers for Series B+ scale-ups in fintech, B2B SaaS, healthcare, and e-commerce, using AI-augmented workflows and productized monthly pricing.
- Company typePrivate
- Founded2019
- HeadquartersNew York, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Interspark does
Interspark is a privately held international consulting and development firm incorporated in Delaware (Interspark Inc.) and founded in 2019 by Gabrion Stewart (CEO) and Jan Feddersen (CTO). The company operates an outsourced CTO office and senior development team for scale-ups — primarily Series B and later fintech, B2B SaaS, healthcare, and e-commerce companies that need CTO-level strategy and senior engineering capacity without hiring a full-time $250K+ executive. A distributed team of 30+ senior engineers (10+ years average experience; 15+ for team leads) operates across four time zones with offices in Bentonville, Zug, New Delhi, and Seoul.
Interspark firmographics
Firmographics- Name
- Interspark
- Legal name
- Interspark Inc
- Website
- https://interspark.com
- Company type
- Private
- Founded year
- 2019
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- 30+ senior engineers across 4 time zones delivering outsourced CTO and development retainers for Series B+ scale-ups in fintech, B2B SaaS, healthcare, and e-commerce, using AI-augmented workflows and productized monthly pricing.
- Ownership category
- akta.pro rank
Interspark industry classification
Industry- Product category
- IT Consulting & Software Development Services
- NAICS
- Computer Systems Design and Related Services (54151), Computer Systems Design and Related Services (5415), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821)
- SIC
- Services-Computer Integrated Systems Design (7373), Services-Computer Programming, Data Processing, Etc. (7370), Services-Management Consulting Services (8742)
- akta.pro primary industry
- Integration, API & Middleware Consulting (BPAHAEAJ)
- akta.pro secondary industry
- Managed DevOps / Platform Operations (Run & Operate) (BPAEAKAO)
Keywords
Where Interspark is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Offices4 records
Markets served
Interspark business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Infrastructure, Technology or R&D, Operations, Marketing or Sales
Revenue model
- CTO & Development Retainer: Monthly subscription retainer providing CTO-level strategy hours and senior development hours. Four tiers from $2,000/mo (20 dev hours) to $14,000/mo (180 dev hours + 20 CTO hours). Overage billed at flat per-hour rates ($135-$175/hr). No long-term contracts - 30-day notice to cancel.
- Managed Hosting: Enterprise-grade infrastructure management with 99.99% uptime SLA. Priced from $500/mo minimum for dev/test/staging/prod environments. Real-time monitoring and incident response included.
- SOC Monitoring: 24/7 security operations center monitoring with threat detection and incident response. $1,000/mo for existing retainer clients. SOC 2 Type II compliant operations.
- Penetration Testing: Offensive security assessments covering network, application, and social engineering testing. One-time engagement billed upon completion.
- Strategy Sessions: 90-minute deep-dive with senior architects including full system audit and architecture review. Custom pricing starting at $5,000. Delivered within 48 hours.
- Infrastructure Optimization (Gain-Share): Cloud cost reduction where Interspark only earns from verified savings. Zero upfront cost. Fee is percentage of savings captured - client keeps majority of savings. 30-day typical time to ROI.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Solo: $2,000/mo - 20 dev hours, no CTO hours |
| Subscription | Monthly | Starter: $4,500/mo - 50 dev hours, no CTO hours |
| Subscription | Monthly | Growth: $8,500/mo - 100 dev hours + 10 CTO hours (Most Popular) |
| Subscription | Monthly | Scale: $14,000/mo - 180 dev hours + 20 CTO hours (Best Value) |
| Usage-based | Monthly | Managed Cloud Hosting: from $500/mo |
| Subscription | Monthly | SOC Services: +$1,000/mo |
| Subscription | Monthly | 5 Extra Strategy Hours: +$1,000/mo |
| One time/ perpetual license | Pay-as-you-go | Strategy Sessions: Custom pricing starting at $5,000 |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
Interspark product offering
Product offeringCore offering
Interspark delivers an outsourced CTO office and senior full-stack development team on a unified monthly retainer, pairing CTO-level strategy (architecture reviews, technology roadmapping, UX strategy, vendor evaluations) with 100+ hours of senior engineering execution. The core retainer is extended by optional add-on services including Managed Cloud Hosting (99.99% uptime SLA), 24/7 SOC Monitoring, Penetration Testing, and a gain-share Infrastructure Optimization offering, all delivered through an AI-augmented engineering workflow.
Product overview
Interspark offers an outsourced CTO office and senior development team structured as a single unified retainer model with optional add-on services. The core product is the CTO & Development Retainer, which provides CTO-level strategy (architecture reviews, technology roadmapping, UX strategy, vendor evaluations) and senior development hours in one predictable monthly fee. Four pricing tiers (Solo at $2,000/mo for 20 dev hours, Starter at $4,500/mo for 50 dev hours, Growth at $8,500/mo for 100 dev hours + 10 CTO hours, and Scale at $14,000/mo for 180 dev hours + 20 CTO hours) feed into the core retainer. The offering is extended by five optional add-on services: Managed Cloud Hosting (enterprise infrastructure management with 99.99% uptime SLA), SOC Monitoring (24/7 threat detection and incident response), Penetration Testing (offensive security assessments), Infrastructure Optimization (gain-share cloud cost reduction), and Strategy Sessions (paid architecture advisory). The company delivers using an Acceptance Driven Feature Development (ADFD) methodology with async-first communication and AI-augmented engineering workflows.
Differentiator
Problem solved
Functional benefit
Products and services
- CTO & Development Retainer
- Managed Cloud Hosting Enterprise-grade infrastructure management for AWS and GCP environments with a 99.99% uptime SLA. Covers dev/test/staging/prod environments with 24/7 monitoring, automated patching, auto-scaling, SSL/CDN management, performance optimization, and cost management. Priced from $500/mo minimum.
- SOC Monitoring 24/7 Security Operations Center monitoring with threat detection and incident response. Includes continuous monitoring across endpoints, network, cloud, and application layers; SIEM integration; 15-minute SLA incident response; compliance reporting for SOC 2, HIPAA, PCI-DSS, and ISO 27001; threat intelligence; and vulnerability management.
- Penetration Testing One-time offensive security engagement covering web application testing, API and microservice testing, infrastructure penetration testing, social engineering, and red team exercises. Deliverables include OWASP Top 10 / SANS 25 coverage, CVSS risk scoring, executive summary, technical remediation report, and a free re-test within 90 days.
- Infrastructure Optimization Cloud cost reduction delivered on a gain-share model: Interspark audits spend across AWS, GCP, and Azure, identifies idle resources, oversized instances, and architectural waste, then implements right-sizing, reserved instances, and spot strategies. Pricing is a percentage of verified savings; client keeps the majority. 30-day typical time to ROI.
- Strategy Sessions One-time paid architecture advisory engagement featuring a 90-minute deep-dive with senior architects, full system audit and architecture review, prioritized 6–12 month roadmap with cost-benefit analysis, risk assessment with concrete mitigation plans, and cost analysis. Custom pricing starting at $5,000, with written deliverable within 48 hours.
Quantifiable outcome
- 99.99% average uptime achieved across all managed hosting clients
- +8 more outcomes
Companies that use Interspark
Customer profileNamed customers4 records
Segments8 records
Ideal customer profiles3 records
Interspark technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability7 records
Feature6 records
Interspark partnerships and signals
Strategic signalScale indicators14 records
Recent moves6 records
Expansion highlights6 records
Interspark competitors and assessment
Company assessmentEmerging players
- Lemon.io: Vetted marketplace for pre-screened senior developers focused on startups and scale-ups. Comparable curated-senior-developer positioning and startup-segment focus, though smaller scale and marketplace rather than retainer model.
- Gun.io: Vetted US-based developer marketplace focused on senior freelancers for contract and long-term engagements. Overlaps with Interspark's senior-only positioning but operates as a marketplace rather than subscription retainer.
Direct peers
- Toptal: Vetted freelance platform for top-tier software engineers and fractional technology talent. Comparable to Interspark in the 'elite senior developer on demand' positioning, though Toptal operates as a marketplace while Interspark runs a subscription retainer model.
- Arc.dev: Vetted developer matching platform focused on senior engineers for full-time and contract engagements. Comparable senior-only talent curation and direct-to-engineer model versus traditional agencies.
- Andela: Global talent marketplace for senior engineers, increasingly focused on AI-augmented engineering and enterprise software squads. Direct overlap with Interspark's senior-only, globally distributed engineering model and AI workflow.
- BairesDev: Latin American nearshore software outsourcing firm providing dedicated development teams to US/EU enterprises. Comparable subscription-style delivery model and targeting of senior engineers for scale-up clients.
- Thoughtbot: Boutique consultancy specializing in product design and senior Rails/React development for startups and scale-ups. Comparable boutique positioning, senior-only staffing, and product-focused engagements for growth-stage clients.
- Turing: AI-powered platform matching companies with pre-vetted remote senior engineers. Comparable global distributed engineering model, AI-augmented productivity claims, and enterprise buyer focus.
Broad incumbents
- Slalom: Large global technology and business consulting firm with cloud, engineering, and modernization practices. Overlaps with Interspark's technology consulting and cloud infrastructure work but at significantly larger scale and broader scope.
- Thoughtworks: Global technology consultancy focused on software engineering excellence, platform modernization, and AI adoption. Comparable senior-only engineering culture and outcome-driven consulting model, but at much larger enterprise scale.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Interspark social profiles
Digital presenceInterspark compliance and trust
Trust signalCompliance1 record
Interspark financial estimates
Financial estimateRevenue estimate
Valuation estimate
Interspark leadership team
Management profileNumber of profiles
Profiles6 records
Interspark funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Interspark M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Interspark
What does Interspark do?
Interspark delivers an outsourced CTO office and senior full-stack development team on a unified monthly retainer, pairing CTO-level strategy (architecture reviews, technology roadmapping, UX strategy, vendor evaluations) with 100+ hours of senior engineering execution. The core retainer is extended by optional add-on services including Managed Cloud Hosting (99.99% uptime SLA), 24/7 SOC Monitoring, Penetration Testing, and a gain-share Infrastructure Optimization offering, all delivered through an AI-augmented engineering workflow.
Is Interspark a public or private company?
Interspark is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Interspark founded?
Interspark was founded in 2019. It employs 11 to 50 people.
Where is Interspark based?
Interspark is headquartered in New York, United States, in the North America region.
How does Interspark make money?
Six revenue lines are on record. CTO & Development Retainer is the primary driver. The others are managed Hosting, SOC Monitoring, penetration Testing, strategy Sessions and infrastructure Optimization (Gain-Share).
Who are Interspark's main competitors?
Emerging players on record are Lemon.io and Gun.io. Direct peers are Toptal, Arc.dev, Andela, BairesDev, Thoughtbot and Turing. Broad incumbents are Slalom and Thoughtworks.
Does Interspark have an API?
No public API is recorded for Interspark.
What industry is Interspark in?
Interspark's product category is IT Consulting & Software Development Services. Its primary akta.pro industry code is BPAHAEAJ, Integration, API & Middleware Consulting, with a secondary code of BPAEAKAO, Managed DevOps / Platform Operations (Run & Operate). Its NAICS code is 54151 and its SIC code is 7373.