Business Growth Through Leadership Consulting, Engineering Expertise, and Industry Connections.
How We Can Help Your Organization
At S4 Consultancy Group, we help global startups and established companies successfully enter and scale in the U.S. and other global markets.
Whether you're building your first MVP or need help in expanding your market base, we act as your trusted partner for smart, scalable execution. We are your one-stop shop to bring expert guidance, engineering, manufacturing services and industry connections to turn ideas into traction.
Experts In Regulated Industries
Industries we serve
Learn how we use our industry expertise and connections with key decision-makers to help develop your product and promote your company.
From a different industry? We can always help companies from parallel industries as the list is not exhaustive. Contact us if you believe our services can help you.
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From flight-critical hardware to in-cabin experience product, we can work with you on all. We guide you on and help your product meet RTCA DO-160, MIL-STD-810, Boeing D6, Airbus ABD100 and other Airframe OEM specifications.
Whether you are looking for designing your next aerospace-grade product or help with introduction to the aerospace industry giants (or not so giant), call us to talk about how we can help.
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Looking for design/simulation help on your next automotive part design, factory automation or expanding the market for your automotive product?
Want us to meet specific ISO specs or your custom specs?
S4 has the right expertise to help your company.
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If your company is registered in the US and your product is manufactured in the US, contact us.
We are always looking for products and services that can help the US and its allies.
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Agriculture, Construction, All-terrain?
Rugged environment is our expertise. Whether you are looking to accelerate your product development, factory automation or need help in introducing your product idea to the off-highway market leaders, we can help you breakthrough by managing the entry strategy and hooking up with key decision-makers.
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Looking to get your product into the medical market? Call us to see how we might help getting your idea or product in front of the right eyes.
We win only if you win. You have nothing to lose.
Our Services
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Leadership Consulting
Our founder, Shrenik Shah offers Fractional Leadership (VP Engineering, CTO, Head of Engineering, Board Member, etc.). His services are designed to help organizations accelerate growth and navigate complex engineering challenges.
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Business Development
We leverage decades of industry experience, our understanding of customer pain-points, and a trusted network across aerospace, automotive, defense, off-highway and medical sectors to connect clients with the right decision-makers, partners, and customers. Our relationship-driven approach accelerates market entry, unlocks growth opportunities, and builds long-term value.
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Hardware Design
We work with our diligently curated partners who specialize in electrical and mechanical product development - from concept, CAD, and simulation to prototyping, and production.
Our partner teams help optimize performance and reduce time-to-market.
We have options for both 100% US-based and offshore teams, depending on your needs.
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Manufacturing
We support clients across plastics, metal fabrication, electronics (PCB, PCBA), micro-fabrication (MEMS, micron level fab) and electromechanical assembly with expert guidance from prototyping to full-scale production. Leveraging our deep industry experience and supplier network, we help optimize design for manufacturability, connect with trusted partners, and ensure quality, cost, and delivery targets are met.
Why partner with us?
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Founder-Led Engagement
When you hire S4 Consultancy, you work directly with Shrenik Shah. Every project receives his personal attention and constant engagement, ensuring decisions are fast, focused, and based on real-world experience in engineering leadership and business development.
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Access To Key Industry Decision-Makers
We open doors. Through decades of relationship-building across North America, Europe, and Asia, we maintain trusted connections with senior decision-makers in OEMs, Tier 1s, and manufacturing partners — giving our clients a strategic advantage in business development and collaboration.
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Trusted Partner Network
We’ve built a curated network of 5-star partners in design, simulation, plastics and metal manufacturing, embedded systems, micro-fabrication (think MEMS) and factory automation. This means we can rapidly assemble a high-performance team tailored to your needs — saving you time and reducing risk.
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Deep, Cross-Industry Experience
With decades of leadership experience across aerospace, automotive, off-highway and manufacturing, we bring a broad yet highly technical perspective to every engagement.
We understand the nuances of regulated industries, rugged environments, mission-critical systems, and scaling complex hardware solutions.
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Execution Focused, Not Just Strategy
We go beyond PowerPoints. Whether it’s accelerating product development, securing manufacturing partners, or building your customer pipeline, we stay involved through execution to ensure measurable impact and sustained results.
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Flexible, Customer-Centric Approach
We adapt to your stage and priorities — offering fractional leadership, fixed-scope projects, or full-cycle development support. Our goal is to deliver value that scales with your growth, not overhead that slows you down.
Our Engagement Models
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Fractional Leadership
Get senior-level leadership without a full-time hire. Shrenik steps in as your Fractional VP of Engineering, CTO, or Business Development Lead, offering strategic direction and execution support.
No overcommitment - guaranteed.
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Retainer-Based Advisory
Stay agile with a flexible monthly consulting arrangement. Perfect for ongoing technical guidance, BD strategy reviews, or cross-functional team support.
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Time & Material (T & M)
Engage us on an hourly or daily basis for dynamic needs. Ideal for fast-turn support, technical problem-solving, or early-stage R&D guidance.
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Success-Based Engagement
We win when you win.
Pay based on results - whether it’s qualified leads, closed deals, or milestone-driven performance in business development.
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Workshops & Training
Upskill your teams with customized sessions on hardware systems, embedded software, or business development.
Delivered in-person or virtually.
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One-Stop Partner Network
At S4 Consultancy Group, we give you access to a trusted global network of specialized partners for product design, simulation, manufacturing, and industrial automation. Whether you're launching a new product or scaling an existing solution, our partners bring deep technical expertise and proven capabilities across every phase. From concept to execution, Shrenik stays personally involved in every engagement - guiding technical reviews, ensuring strategic alignment, and maintaining accountability - so you get the benefits of an extended team with the assurance of experienced leadership.
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Not sure? No problem
We are flexible and can always figure out an engagement model that works for you.
Client Testimonials
FAQs
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S4 helps startups and established companies accelerate growth through leadership consulting, business development, and access to engineering and manufacturing experts across multiple industries.
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We specialize in aerospace, automotive, defense, off-highway, and medical industries. However, we also support adjacent and emerging sectors — contact us to see how we can help.
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We combine founder-led leadership, deep technical expertise, and a trusted network of global partners. Every project is execution-focused and tailored to your company’s growth stage.
Our founder is personally involved with every client project, and we never over-commit.
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Our core offerings include fractional leadership, business development, product design and manufacturing services.
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Yes. We offer multiple engagement models including fractional roles, retainer-based advisory, hourly time-and-materials, and success-based partnerships.
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All engagements are personally led by our founder, Shrenik Shah, a seasoned executive with global experience in companies like Collins Aerospace, Panasonic, and CNH Industrial.