About Upstream
Upstream is a company based in London (United Kingdom) founded in 2001 by Marco Veremis was acquired by Intersel in July 2025. It operates as a SaaS (Software-as-a-Service) and Professional Services. Upstream has raised $41.79 million across 4 funding rounds from investors including Alpha Bank, National Bank of Greece and Actis. Upstream offers products and services including Grow Platform, E-commerce Solutions, and Mobile Operator Solutions. Upstream operates in a competitive market with competitors including Localytics, Vibes, Pathmatics, Famous and Brandtone, among others.
- Headquarter London, United Kingdom
- Founders Marco Veremis
- SectorsTechnology
- Email••••••••
- Phone•••• ••••
- Website upstreamsystems.com
- Social LinkedIn X Facebook YouTube
- Acquired by Intersel (Jul 2025)
- Legal Name Upstream Systems
- Total Equity Funding$41.79M (USD)
in 4 rounds
- Latest Funding Round$14.82M (USD), Debt – Conventional
Dec 2022
- InvestorsAlpha Bank
& 5 more
- Acquired byIntersel
(Jul 2025)
Products & Services of Upstream
Upstream offers a comprehensive portfolio of products and services, including Grow Platform, E-commerce Solutions, and Mobile Operator Solutions.
Mobile marketing platform maximizing leads and sales effectively.
Solutions for e-commerce to boost sales and engagement.
Cross-channel journeys for operators to increase revenue.
Apps and channels of Upstream
its YouTube channel UpstreamMobilecommerce has 407 subscribers and 30 videos.
Videos from Upstream
The most watched videos on Upstream's YouTube channel, UpstreamMobilecommerce (407 subscribers). Click a video to play it here.
More on UpstreamMobilecommerce.
Funding Insights of Upstream
Upstream has successfully raised a total of $41.79M across 4 strategic funding rounds. The most recent funding activity was a Debt – Conventional round of $14.82 million completed in December 2022. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $41.79M
- Total Rounds 4
- Last Round Debt – Conventional — $14.82M
- First Round $15.29M
(May 2009)
- Investors Count 5
All 4 funding rounds of Upstream with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
6 investors in total: 6 institutional.
Investors in Upstream
Upstream has secured backing from 6 investors, including institutional and venture fund investors. Prominent investors backing the company include Alpha Bank, National Bank of Greece and Actis.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Finance and advisory services for infrastructure projects are provided. | 1958 | eib.org | Luxembourg, Luxembourg | |
Sustainable infrastructure projects are invested in for essential services. | 1987 | act.is | London, United Kingdom | |
Tech & offline focused early & growth stage VC firm investing in Europe, Asia & the US | – | tlcomcapital.com | Nairobi, Kenya | |
Retail, corporate, and investment banking services are provided in Greece. | 1841 | nbg.gr | Athens, Greece | |
Alpha Bank is recognized as a leading financial institution in Greece. | 1879 | alpha.gr | Athens, Greece | |
- | – | intersel.co.uk | - |
Investor details for Upstream
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
- Complete investor list
- Round participation
- Investor portfolios
- Co-investor network
Verified entity values are shown only after access is granted.
People of Upstream
106 people are tracked at Upstream (26 in leadership, 7 in board & advisors, 73 in team).
| Name | Role | Group |
|---|---|---|
Marco Veremis | Co-Founder | Leadership |
Evi Koukorempa | Growth & Business Development Director | Leadership |
Reuben A. | Sales & Account Director | Leadership |
Benjamin Boulan | Commercial Innovation Director | Leadership |
Evita Tyraki | Asia PMO and IT Operations Director | Leadership |
Natalia Mila | Chief Technology Officer | Leadership |
Laodimos Nick Filippopoulos | Chief Software Architect | Leadership |
Barbara Sá | VP Commercial Operations LATAM | Leadership |
Elli Leno | Performance Marketing Director | Leadership |
Dimitris Maniatis | CEO | Leadership |
George Serfiotis | Chief Financial Officer | Leadership |
Eleni Pavlou | Product Innovation & Customer Experience Director | Leadership |
Kiné Diagne | Account Director | Leadership |
Dimitris Patriarcheas | Director Business Planning | Leadership |
Olga Vagiakakou | Product Marketing Director | Leadership |
Elena Kokkori | Director Of Finance | Leadership |
Lisa Karanasopoulou | Director of Content Management Team | Leadership |
ilkka jarvilaturi | director | Leadership |
Apostolos Katidiotis | VP Systems & Security | Leadership |
Konstantinos Kyritsis | Head of Technical Product | Leadership |
86 more people are available in the full profile.
Complete people profiles for Upstream
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
- Full employee list
- Team structure
- Board tenure
- Professional contacts
Verified entity values are shown only after access is granted.
Timeline of Upstream
4 dated milestones of Upstream across 24 years, from founding to its latest funding, stage changes and deals.
- Founded Upstream is founded.
- Funding First funding round of $15.3M.
- Funding Latest funding round, Debt – Conventional, of $14.8M.
- Exit Acquired by Intersel.
Competitors of Upstream
Upstream operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Localytics, Vibes, Pathmatics, Famous and Brandtone, among others.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| localytics.com | 2008 | Boston, United States | $59.72M | 83 | Mobile App User Analytics & Marketing | |
| vibes.com | 1998 | Chicago, United States | $60M | 106 | Mobile marketing solutions are provided for business customer engagement. | |
| pathmatics.com | 2011 | Santa Monica, United States | $10.66M | 102 | Digital advertising intelligence is supplied to global industry stakeholders. | |
| famous.co | 2011 | San Francisco, United States | $30.1M | 33 | Mobile marketing solutions are provided for branded app creation. | |
| brandtone.com | 2009 | Dublin, Ireland | $69.01M | – | Mobile marketing platform for FMCG advertisers | |
| swrve.com | 2009 | San Francisco, United States | $76.12M | 8 | In-app marketing automation is delivered for mobile app optimization. | |
| medio.com | 2004 | Seattle, United States | $41M | 57 | Predictive Mobile Marketing Automation suite | |
| wrap.co | 2014 | San Francisco, United States | $28.7M | – | Mobile branding, publishing, and e-commerce platform is operated. | |
| hipcricket.com | 2004 | New York, United States | $80.17M | 71 | Mobile marketing and advertising technologies are delivered by Hipcricket. |
Detailed competitors of Upstream
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
- Full competitor set
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- Competitive positioning
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Web traffic of Upstream
The website of Upstream (upstreamsystems.com) receives about 8.4K visits a month.
- Monthly visits8.4K
▲ 149.9% vs previous month
Websites whose visitors overlap most with Upstream. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
upstream.so | upstream.so | 100% | – | #272,843 | – |
| velti.com | 99% | – | – | View details | |
| allterco.com | 88% | – | – | View details | |
massimus.com | massimus.com | 84% | – | #4,088,797 | – |
upstreamonline.com | upstreamonline.com | 74% | – | #125,057 | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
All 9 similar websites and full traffic analytics for Upstream
The complete similar-websites list, audience overlap and engagement analytics require an active premium plan.
- 9 similar websites
- Audience overlap
- Engagement analytics
- Traffic by brand
Verified entity values are shown only after access is granted.
Latest news on Upstream
Complete news archive for Upstream
Full article history, source details, and older brand coverage require an active premium plan.
- Full article archive
- Source and publication date
- Older coverage
- Brand-specific news history
Verified entity values are shown only after access is granted.
Similar companies to Upstream
10 companies that operate in the same segment as Upstream (MarketingTech), ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Provider of AI-powered customer relationship management software | 2005 | Cambridge, Massachusetts, United States | USD 100.7 M | USD 3.13 B | 8,250 | |
Zeta Global is recognized as an AI-powered marketing cloud. | 2007 | New York, New York, United States | USD 360.17 M | USD 1.3 B | 2,190 | |
Multi-channel online marketing tools are provided for small businesses. | 1998 | Waltham, Massachusetts, United States | USD 37 M | – | – | |
Cloud-based omnichannel communication and customer engagement platform is utilized. | 2008 | San Francisco, California, United States | USD 239.77 M | USD 5.07 B | 5,540 | |
Mobile marketing platform for attribution and user acquisition | 2012 | San Francisco, California, United States | USD 1.72 B | USD 4.71 B | 1,560 | |
AI-powered platform manages marketing creatives and customer journeys. | 1982 | San Jose, California, United States | – | USD 23.77 B | 30,710 | |
SaaS email marketing solutions are offered to e-commerce businesses. | 2012 | Boston, Massachusetts, United States | USD 778.5 M | USD 1.23 B | 2,180 | |
Contact databases and sales intelligence are supplied to businesses. | 2000 | Vancouver, Washington, United States | USD 32 M | USD 1.25 B | 3,510 | |
Automated usability testing and feedback for mobile experiences is provided. | 2007 | San Francisco, California, United States | USD 148.5 M | USD 21.68 M | 557 | |
Video hosting, creation, management, and streaming services are provided. | 2004 | New York, New York, United States | USD 450 M | USD 417.01 M | 1,100 |
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Frequently Asked Questions about Upstream
Upstream was founded in 2001 and raised its 1st funding round 8 years after it was founded.
Upstream is headquartered in London, United Kingdom. It is registered at London, England, United Kingdom.
Upstream is a funded company, having raised a total of $41.79M across 4 funding rounds to date. The company's 1st funding round was a Series A of $15.29M, raised on May 2009.
Upstream is established as a prominent provider of mobile marketing solutions, focusing on maximizing leads, sign-ups, and sales across various mobile channels. Services are offered to industries such as e-commerce and mobile operators, utilizing the proprietary Grow platform. Customer engagement and acquisition are enhanced through data-driven technology and predictive analytics. Global reach is achieved with a presence in multiple countries, supporting over 370 advertisers and connecting with 1.2 billion consumers monthly.
Upstream's top competitors include Vibes, Pathmatics and Localytics.
Upstream offers Grow Platform, E-commerce Solutions, and Mobile Operator Solutions.
Upstream has 6 investors. Key investors include Alpha Bank, National Bank of Greece, Actis, European Investment Bank, and TLcom Capital Partners.
Upstream operates through Upstream Systems.
Yes. Upstream was acquired by Intersel in July 2025.