ProSapient: Expert Network Profile, Services, and Reviews

A London-Based Expert Network Built for Institutional Investors

ProSapient is an AI-powered expert network founded in 2017 by Margo Polishchuk and Jordan Shlosberg. It connects clients with industry experts for paid consultations, surveys, and primary research. The company positions itself as a technology-first alternative in an expert network industry that generates close to $2 billion annually.

ProSapient raised $10 million in Series A funding in 2021, led by Smedvig Capital. Before that round, ProSapient achieved 100% year-over-year revenue growth. The company employs over 270 people across four global locations: London, Raleigh, Toronto, and Lisbon.

The company has earned recognition as a Future Fifty company by Tech Nation, was featured among the Financial Times FT1000 fastest-growing businesses in Europe, and was recognized as one of the 100 fastest-growing businesses in Europe. Its solutions focus on connecting clients in private equity, venture capital, and consulting with industry-leading experts faster than traditional relationship-driven networks.

If you're a PE associate, strategy analyst, or consultant evaluating expert networks, here's what you need to know about ProSapient's services, how they work, what clients and experts say, and how they compare to alternatives.

What ProSapient Offers

ProSapient operates as a primary research platform with five core service lines:

• Expert consultations. 1-on-1 or group calls with vetted industry experts. A consultation typically lasts one hour. Clients access insights through phone calls and surveys.

• AI-powered search and matching. Their "SearchAI" technology uses machine learning, semantic search, entity extraction, and contextual enrichment to match project requests to relevant experts. It goes beyond keyword matching to interpret title synonyms, company name variants, and context. The system learns from past matches to improve accuracy over time.

• Survey capabilities. ProSapient offers AI-moderated interviews for survey projects. You can run online surveys and expert panel questionnaires using their network or broader respondent sourcing.

• Transcript library. After each expert call, transcripts are produced with 99% accuracy, typically available within four hours. The transcript library is searchable and shareable. AI summaries and translations into 48 languages are included.

• Compliance and expert vetting. ProSapient is ISO 27001 accredited for information security. Experts complete mandatory compliance training. Transcripts pass an MNPI (material non-public information) review. The platform is GDPR compliant.

The platform supports custom recruiting for niche audiences, which helps when you need a given expert for specialized fields that standard databases don't cover well.

How ProSapient Works

For Clients Seeking Insights

1. Submit a project request. You describe the subject matter, geography, seniority level, and any specific criteria.
2. AI-enhanced matching. SearchAI proposes expert matches from a database of approximately 50,000 experts. The AI-powered search identifies candidates even when titles or company names are non-standard.
3. Vetting and compliance screening. Human associates further screen expert suitability. Experts undergo a vetting call before client proposals. Compliance checks are run before any conversation happens.
4. Schedule and conduct the call. Calls are scheduled via the platform with calendar integrations and dial-in options (phone, Zoom, browser).

Turnaround from project submission to expert match can happen in hours rather than days, depending on the request specificity.

For Industry Experts

1. Recruitment and onboarding. Experts are recruited proactively or through inbound inquiry. Their profile and history are reviewed for relevance.
2. Vetting and compliance. Screening calls or emails assess relevance to specific projects. If selected, mandatory compliance training is required before any engagement.
3. Project matching. Once approved, experts are presented to clients. Experts can negotiate their consultation rates based on seniority and expertise.
4. Payment. Payment is processed within 45 days after the consultation. Rates are agreed per project.

ProSapient's Competitive Positioning

ProSapient positions itself as a technology-first expert network, which matters if you're comparing it against relationship-heavy incumbents.

ProSapient employs over 270 people across four global locations — meaningful headcount for a company founded in 2017, but still smaller than established players. Its AI and machine learning integration represents genuine technological innovation in the space, though the network size of ~50,000 is significantly smaller than the world's largest networks. See our GLG profile for the scale comparison.

The coverage gap to watch: ProSapient is strong in Western Europe and North America but may have thinner coverage in Asia-Pacific or other emerging markets. If your research requires niche geographies, confirm coverage before committing.

Client Reviews and Expert Feedback

ProSapient holds a 4.5/5 TrustScore on Trustpilot based on approximately 415 reviews.

What experts and clients praise:

• Clear, helpful communication from client services teams throughout the process
• Fast turnaround on scheduling and expert matching
• Professional support from associates during and after calls
• Payments are consistent with agreed rates
• The platform is usable and doesn't require heavy onboarding

What comes up as criticism:

• Occasional technical issues during calls (audio quality problems)
• Screening calls that consume expert time but don't result in selection
• Rare payment disputes where short calls or "unsatisfactory answers" are cited as reasons for non-payment
• The 10-minute no-charge policy. Some expert networks, including ProSapient, allow clients to drop calls before 10 minutes if there's a mismatch. Experts should clarify billing rules before any engagement.

Is ProSapient legitimate or a scam? It's legitimate. The company is ISO 27001 accredited, has hundreds of public reviews, was recognized by Tech Nation and the Financial Times, and raised institutional venture capital. Payment issue stories exist on forums like Reddit but appear relatively rare and are often resolved.

That said, if you're an expert, confirm your rate, billing terms, and the policy on short calls in writing before your first engagement.

Who Uses ProSapient

ProSapient's client base skews toward institutional investors and professional services firms:

• Private equity firms running pre-investment due diligence and portfolio company assessments
• Venture capital firms validating market sizing, competitive positioning, and founder claims
• Management consulting companies conducting primary research for client engagements
• Corporate strategy and M&A teams gathering intelligence for market entry, acquisitions, or competitive analysis
• Investment banks and hedge funds seeking proprietary insights beyond public filings
• Market research organizations supplementing quantitative data with qualitative expert perspectives

For firms doing ongoing research, the searchable transcript library supports knowledge discovery and institutional memory across projects.

FieldSignal's client profile includes investment firms, boutique PE/VCs, mid-market and enterprise strategy teams, seed-to-Series-A founders, and corporate development and M&A teams.

ProSapient Pricing Structure

ProSapient doesn't publish specific rates, but here's what's known from expert feedback and industry context:

• Consultation model. Per-call pricing, not annual retainers. You pay for what you use.
• Expert consultation rates. Rates are negotiated per project. Experts set their own rates based on seniority and specialization. Industry-standard ranges for expert honoraria typically fall between $100 and $350 per hour, though niche or C-level expertise can command more.
• Payment timeline. Payment is processed within 45 days after the consultation. Slower than some competitors.
• No published pricing page. Like most expert networks, ProSapient requires you to engage with their team for a quote.

Pricing transparency remains a persistent issue across the industry. If you're comparing options, ask for a per-call breakdown including any platform fees, expert honoraria, and whether there's markup on the pass-through rate.

FieldSignal offers transparent, pay-per-use pricing with no annual retainer and no minimum commitment.

Frequently Asked Questions

Is ProSapient legitimate or a scam?

ProSapient is a legitimate company. It raised $10 million in Series A funding in 2021, employs over 270 people across four global locations, and is ISO 27001 accredited for information security. The company was recognized as one of the 100 fastest-growing businesses in Europe and named a Future Fifty company by Tech Nation. Public reviews on Trustpilot average 4.5/5 across hundreds of ratings.

How does ProSapient compare to GLG and other major networks?

ProSapient is smaller (approximately 50,000 experts vs GLG's 1.2M+) but faster on turnaround and more technology-forward. GLG and AlphaSights offer deeper networks and longer track records in heavily regulated industries. ProSapient wins on speed and cost accessibility for firms that don't need the scale of the largest networks.

What are typical response times for project requests?

ProSapient claims expert matching and scheduling can happen within hours. For standard requests in well-covered sectors, this is realistic. Niche geographies or highly specialized roles may take longer.

How does the AI-powered matching actually work?

SearchAI uses semantic search, entity extraction, and contextual enrichment. It interprets title synonyms, language variants, and company name variations. The system improves over time, learning from successful matches to surface better candidates for future projects.

What compliance measures does ProSapient have in place?

ProSapient requires mandatory compliance training for all experts. Transcripts undergo MNPI review. The company is ISO 27001 accredited and GDPR compliant. Audit trails are maintained for all interactions.

How long do expert consultations last?

Expert consultations typically last one hour. Shorter or longer calls can be arranged depending on the project scope and the expert's availability.

Consider Your Expert Network Options

ProSapient is a solid option for private equity firms, consulting teams, and research professionals who want speed and AI-enabled matching and don't need the massive network depth of a GLG or AlphaSights.

Its limitations are real: smaller network size, thinner coverage in certain geographies, a newer track record, and a 45-day payment cycle that's slower than some alternatives. The technology-first approach also means less white-glove service for clients who want a fully managed research experience.

FieldSignal offers interviews, surveys, panel calls, and custom research projects with transparent pricing and a pay-per-use model that doesn't require long-term engagements or annual retainers. See expert call access without six-figure retainers for the model in practice.

If you're evaluating your options, get a specific quote based on your actual research scope.

See if FieldSignal fits your project